| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Triage ticket T-104 on the tickets MCP server: initialize the session, discover its tools, read the triage policy resource and the triage prompt, read the ticket, set its status as the policy directs, read the status back, then report the ticket id and its new status.", "role": "user"}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the initialize result named the server and its protocol version; send notifications/initialized to finish the handshake the protocol requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the first page of tools and read each inputSchema before calling anything; the result may end with a nextCursor", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-0\",\"tools\":[]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the first page listed no tools yet carried a nextCursor; follow the cursor instead of treating the empty page as the whole tool result", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-0\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the first page ended with a nextCursor; request the second page with that cursor so no tool or schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the triage policy resource so the status decision follows the written requirement instead of a guess", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"tickets://policy\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/markdown\",\"text\":\"# Triage policy\\n\\n1. Read a ticket before changing it.\\n2. A ticket whose note records a reproduction moves to in_progress; one without a reproduction stays open.\\n3. A ticket that waits on another team is set blocked, and its note names the blocker.\\n4. Only a verified fix closes a ticket.\\n\",\"uri\":\"tickets://policy\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: fetch the triage prompt for T-104 to see the steps the server's own workflow lays out for this goal", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"prompts/get\", \"params\": {\"arguments\": {\"ticket_id\": \"T-104\"}, \"name\": \"triage\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"description\":\"Triage one ticket against the policy resource.\",\"messages\":[{\"content\":{\"text\":\"Triage ticket T-104: read it with get_ticket, apply tickets://policy, set its status with set_status, and read the status back with get_status before reporting.\",\"type\":\"text\"},\"role\":\"user\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the prompt says to read the ticket first; call get_ticket with the id argument the listed schema requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note records a reproduction, so the policy moves it to in_progress; call set_status with the arguments the listed schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\", \"status\": \"in_progress\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":9,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the server sent notifications/tools/list_changed and answered -32602; re-list the tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"in_progress\", \"ticket_id\": \"T-104\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-104\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: set_status returned without isError; read the status back with get_status to verify the server stored it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"in_progress\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows in_progress; report the ticket id and status the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 in_progress\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 in_progress", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:d4f86cc58b8467c2297414a938b3ac9ba80a4e6cef657a20837b296b06149e76", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354117665719332006-00001", "replay_digest": "7f3f59b0d7435d1ef8cb61a73fae176dc0d3590193e8fd72f0446e24e029a93e", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354117665719332006-00001", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354117665719332006-00001", "recovery": {"error_turns": 0, "faults_fired": ["empty-first-page", "set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "resource_read:server=tickets,uri=tickets://policy": true, "server_value:key=T-104,server=tickets,value=in_progress": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=18": true, "value_reported:value=T-104 in_progress": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Triage ticket T-104 on the tickets MCP server: initialize the session, discover its tools, read the triage policy resource and the triage prompt, read the ticket, set its status as the policy directs, read the status back, then report the ticket id and its new status.", "role": "user"}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the initialize result named the server and its protocol version; send notifications/initialized to finish the handshake the protocol requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the first page of tools and read each inputSchema before calling anything; the result may end with a nextCursor", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-0\",\"tools\":[]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the first page listed no tools yet carried a nextCursor; follow the cursor instead of treating the empty page as the whole tool result", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-0\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the first page ended with a nextCursor; request the second page with that cursor so no tool or schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the triage policy resource so the status decision follows the written requirement instead of a guess", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"tickets://policy\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/markdown\",\"text\":\"# Triage policy\\n\\n1. Read a ticket before changing it.\\n2. A ticket whose note records a reproduction moves to in_progress; one without a reproduction stays open.\\n3. A ticket that waits on another team is set blocked, and its note names the blocker.\\n4. Only a verified fix closes a ticket.\\n\",\"uri\":\"tickets://policy\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: fetch the triage prompt for T-104 to see the steps the server's own workflow lays out for this goal", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"prompts/get\", \"params\": {\"arguments\": {\"ticket_id\": \"T-104\"}, \"name\": \"triage\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"description\":\"Triage one ticket against the policy resource.\",\"messages\":[{\"content\":{\"text\":\"Triage ticket T-104: read it with get_ticket, apply tickets://policy, set its status with set_status, and read the status back with get_status before reporting.\",\"type\":\"text\"},\"role\":\"user\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the prompt says to read the ticket first; call get_ticket with the id argument the listed schema requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note records a reproduction, so the policy moves it to in_progress; call set_status with the arguments the listed schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\", \"status\": \"in_progress\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":9,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the server sent notifications/tools/list_changed and answered -32602; re-list the tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"in_progress\", \"ticket_id\": \"T-104\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-104\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: set_status returned without isError; read the status back with get_status to verify the server stored it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"in_progress\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows in_progress; report the ticket id and status the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 in_progress\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 in_progress", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:d4f86cc58b8467c2297414a938b3ac9ba80a4e6cef657a20837b296b06149e76", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5636685353972199356-00004", "replay_digest": "a0b241591148c1cbc95629b2b80438c2e9f0285bd66d3afaaebe85df8b5151e3", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5636685353972199356-00004", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5636685353972199356-00004", "recovery": {"error_turns": 0, "faults_fired": ["empty-first-page", "set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "resource_read:server=tickets,uri=tickets://policy": true, "server_value:key=T-104,server=tickets,value=in_progress": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=18": true, "value_reported:value=T-104 in_progress": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":10,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: tickets sent notifications/tools/list_changed and answered -32602; re-list its tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"blocked\", \"ticket_id\": \"T-102\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":14,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":15,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281755-00005", "replay_digest": "3d9c85974dc7f43809d5f3f6d4c7a8a18eb15a461c53af7ad7297ecad2deaafe", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281755-00005", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281755-00005", "recovery": {"error_turns": 0, "faults_fired": ["set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":10,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: tickets sent notifications/tools/list_changed and answered -32602; re-list its tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"blocked\", \"ticket_id\": \"T-102\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":14,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":15,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177617-00008", "replay_digest": "926b3e224718276664e141bc06416f8a231f41e02da71ad4430535fa41f12c26", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177617-00008", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177617-00008", "recovery": {"error_turns": 0, "faults_fired": ["set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "A teammate asked for the state of the CSV export ticket and quoted its id as T-103. On the tickets MCP server, initialize the session, discover the tools, look the quoted id up, and when it does not resolve find the right ticket from the queue listing; then report the ticket's id and state.", "role": "user"}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded; acknowledge with notifications/initialized so the server treats the client as ready for every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tools before calling any; the first page shows get_ticket's schema and whether a nextCursor follows", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing is paginated; read the remaining page so no tool and no schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: look up the quoted id T-103 exactly as the request gave it; the tool result will show whether it resolves", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-103\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"no entry for 'T-103'\",\"type\":\"text\"}],\"isError\":true}}", "role": "tool", "tool_result": {"error": "[{\"text\": \"no entry for 'T-103'\", \"type\": \"text\"}]", "ok": false}}, {"content": "Plan: the tool result came back with isError true and no entry for T-103: a lookup miss, not a transport error; list the queue to find the CSV export ticket", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":6,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-101 open: login page returns 500 after the 2026-10-07 deploy\\nT-102 open: nightly build fails in test_cache_eviction\\nT-104 open: CSV export drops the header row\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing shows the CSV export ticket as T-104, not T-103; read that ticket to confirm its title and state", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket result confirms T-104 is the CSV export ticket and its state is open; report the id and state", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 open\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 open", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:5b9e4d8c74db2b0aa1214a84b3d04d6c8123c28f337c8474481761b9c284b3d3", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10770988325729244093-00009", "replay_digest": "7526adebb0aa0a422230310131e0758e25e4b8eddb2e7229fabecc41a4a79961", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10770988325729244093-00009", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10770988325729244093-00009", "recovery": {"error_turns": 2, "faults_fired": ["list-rate-limited"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=list_tickets": true}, "public": {"max_steps:n=14": true, "value_reported:value=T-104 open": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "A teammate asked for the state of the CSV export ticket and quoted its id as T-103. On the tickets MCP server, initialize the session, discover the tools, look the quoted id up, and when it does not resolve find the right ticket from the queue listing; then report the ticket's id and state.", "role": "user"}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded; acknowledge with notifications/initialized so the server treats the client as ready for every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tools before calling any; the first page shows get_ticket's schema and whether a nextCursor follows", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing is paginated; read the remaining page so no tool and no schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: look up the quoted id T-103 exactly as the request gave it; the tool result will show whether it resolves", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-103\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"no entry for 'T-103'\",\"type\":\"text\"}],\"isError\":true}}", "role": "tool", "tool_result": {"error": "[{\"text\": \"no entry for 'T-103'\", \"type\": \"text\"}]", "ok": false}}, {"content": "Plan: the tool result came back with isError true and no entry for T-103: a lookup miss, not a transport error; list the queue to find the CSV export ticket", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":6,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-101 open: login page returns 500 after the 2026-10-07 deploy\\nT-102 open: nightly build fails in test_cache_eviction\\nT-104 open: CSV export drops the header row\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing shows the CSV export ticket as T-104, not T-103; read that ticket to confirm its title and state", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket result confirms T-104 is the CSV export ticket and its state is open; report the id and state", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 open\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 open", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:5b9e4d8c74db2b0aa1214a84b3d04d6c8123c28f337c8474481761b9c284b3d3", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106847998790124357-00011", "replay_digest": "98c989300a620f8ca8a57403e6c4b518ba1753fedd0d65033ccd07a70bb64029", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106847998790124357-00011", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106847998790124357-00011", "recovery": {"error_turns": 2, "faults_fired": ["list-rate-limited"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=list_tickets": true}, "public": {"max_steps:n=14": true, "value_reported:value=T-104 open": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "On the calendar MCP server, book 2026-10-12T15:00 for the design review follow-up: initialize the session, discover the tools, read the booking hours resource, check the events already on 2026-10-12, book the slot, read it back to verify, then report the slot as booked.", "role": "user"}, {"content": "Plan: initialize the calendar session first; the result names the server and the protocol version every later call relies on", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the handshake needs notifications/initialized after a successful initialize; send it before any tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools and read their inputSchema; one page without a nextCursor means the listing is complete", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the booking hours resource so the requested slot is checked against the written requirement", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"calendar://hours\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/plain\",\"text\":\"Bookings are accepted on weekdays between 09:00 and 17:00, on half-hour boundaries, and must not overlap an event already on the day.\\n\",\"uri\":\"calendar://hours\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the events on 2026-10-12 to verify nothing is booked at 15:00 before booking it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":5,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"2026-10-12T10:00 30m standup\\n2026-10-12T13:00 60m design review\\n2026-10-12T16:30 30m retro prep\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the event list shows nothing at 15:00 and the hours allow it; book the slot with the slot and title arguments the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\", \"title\": \"design review follow-up\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T15:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: book_slot reported stored; read the slot back with get_slot to verify the server holds the booking", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32603,\"message\":\"server restarted; session lost, initialize again\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "server restarted; session lost, initialize again", "ok": false}}, {"content": "Observation: the read-back failed with -32603: the server restarted and the session is gone; initialize again", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the session is re-established; send notifications/initialized before any further request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: a restart may change the tool set; list the tools again and read the schema before calling one", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: a restart drops session state, so the booking stored before it is gone; book the slot again, then verify", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\", \"title\": \"design review follow-up\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T15:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the observation reported 'server restarted'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"design review follow-up\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows the follow-up title under the slot; report the booking the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"2026-10-12T15:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: 2026-10-12T15:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:96cd3c04edd71a32ffd68eda9042a902f7dbbd03e593e99ec07b4bcc7dc7a51d", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10160555276072410963-00012", "replay_digest": "62a699c739e7add0d613e23372712dfa89b3fa64dcdc17216d5c1c7e5df74729", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10160555276072410963-00012", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-10160555276072410963-00012", "recovery": {"error_turns": 2, "faults_fired": ["events-rate-limited", "restart-on-readback"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "resource_read:server=calendar,uri=calendar://hours": true, "server_value:key=2026-10-12T15:00,server=calendar,value=design review follow-up": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=calendar,tool=list_events": true}, "public": {"max_steps:n=16": true, "value_reported:value=2026-10-12T15:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "On the calendar MCP server, book 2026-10-12T15:00 for the design review follow-up: initialize the session, discover the tools, read the booking hours resource, check the events already on 2026-10-12, book the slot, read it back to verify, then report the slot as booked.", "role": "user"}, {"content": "Plan: initialize the calendar session first; the result names the server and the protocol version every later call relies on (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize the calendar session first; the result names the server and the protocol version every later call relies on", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the handshake needs notifications/initialized after a successful initialize; send it before any tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools and read their inputSchema; one page without a nextCursor means the listing is complete", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the booking hours resource so the requested slot is checked against the written requirement", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"calendar://hours\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/plain\",\"text\":\"Bookings are accepted on weekdays between 09:00 and 17:00, on half-hour boundaries, and must not overlap an event already on the day.\\n\",\"uri\":\"calendar://hours\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the events on 2026-10-12 to verify nothing is booked at 15:00 before booking it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":5,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"2026-10-12T10:00 30m standup\\n2026-10-12T13:00 60m design review\\n2026-10-12T16:30 30m retro prep\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the event list shows nothing at 15:00 and the hours allow it; book the slot with the slot and title arguments the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\", \"title\": \"design review follow-up\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T15:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: book_slot reported stored; read the slot back with get_slot to verify the server holds the booking", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32603,\"message\":\"server restarted; session lost, initialize again\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "server restarted; session lost, initialize again", "ok": false}}, {"content": "Observation: the read-back failed with -32603: the server restarted and the session is gone; initialize again", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the session is re-established; send notifications/initialized before any further request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: a restart may change the tool set; list the tools again and read the schema before calling one", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: a restart drops session state, so the booking stored before it is gone; book the slot again, then verify", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\", \"title\": \"design review follow-up\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T15:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the observation reported 'server restarted'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"design review follow-up\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows the follow-up title under the slot; report the booking the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"2026-10-12T15:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: 2026-10-12T15:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-1-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:96cd3c04edd71a32ffd68eda9042a902f7dbbd03e593e99ec07b4bcc7dc7a51d", "run_id": "twd-run-1-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 1 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-9101035490775765881-00015", "replay_digest": "7383dffe7d05d2cfd6b5c7617704c00a8b1cb75979882c01e82056fcdbdf84a8", "repo": "rmems/synthetic-factory", "seed": 1, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-9101035490775765881-00015", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-9101035490775765881-00015", "recovery": {"error_turns": 2, "faults_fired": ["events-rate-limited", "restart-on-readback"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "resource_read:server=calendar,uri=calendar://hours": true, "server_value:key=2026-10-12T15:00,server=calendar,value=design review follow-up": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=calendar,tool=list_events": true}, "public": {"max_steps:n=16": true, "value_reported:value=2026-10-12T15:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "On the calendar MCP server, book 2026-10-12T15:00 for the design review follow-up: initialize the session, discover the tools, read the booking hours resource, check the events already on 2026-10-12, book the slot, read it back to verify, then report the slot as booked.", "role": "user"}, {"content": "Plan: initialize the calendar session first; the result names the server and the protocol version every later call relies on", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the handshake needs notifications/initialized after a successful initialize; send it before any tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools and read their inputSchema; one page without a nextCursor means the listing is complete", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the booking hours resource so the requested slot is checked against the written requirement", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"calendar://hours\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/plain\",\"text\":\"Bookings are accepted on weekdays between 09:00 and 17:00, on half-hour boundaries, and must not overlap an event already on the day.\\n\",\"uri\":\"calendar://hours\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the events on 2026-10-12 to verify nothing is booked at 15:00 before booking it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":5,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"date\": \"2026-10-12\"}, \"name\": \"list_events\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"2026-10-12T10:00 30m standup\\n2026-10-12T13:00 60m design review\\n2026-10-12T16:30 30m retro prep\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the event list shows nothing at 15:00 and the hours allow it; book the slot with the slot and title arguments the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\", \"title\": \"design review follow-up\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T15:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: book_slot reported stored; read the slot back with get_slot to verify the server holds the booking", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T15:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"design review follow-up\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows the follow-up title under the slot; report the booking the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"2026-10-12T15:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: 2026-10-12T15:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:96cd3c04edd71a32ffd68eda9042a902f7dbbd03e593e99ec07b4bcc7dc7a51d", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5944251417863685718-00001", "replay_digest": "7d8e6994d46b6d5da9f3b0d51d0ecb9ef33fdbd4fe1abf8417a31cf3c14d2902", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5944251417863685718-00001", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-5944251417863685718-00001", "recovery": {"error_turns": 1, "faults_fired": ["events-rate-limited"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "resource_read:server=calendar,uri=calendar://hours": true, "server_value:key=2026-10-12T15:00,server=calendar,value=design review follow-up": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=calendar,tool=list_events": true}, "public": {"max_steps:n=16": true, "value_reported:value=2026-10-12T15:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-0\",\"tools\":[]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the calendar's first page listed no tools but gave nextCursor cursor-0; follow the cursor to read the real page", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-0\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":10,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":14,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281752-00005", "replay_digest": "38b92efbbf1cae1a562fc3fd610deb3bf97cc7bacfc14c9ff9f9f5010cb4ff10", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281752-00005", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-13480594725903281752-00005", "recovery": {"error_turns": 1, "faults_fired": ["calendar-empty-first-page", "book-rate-limited"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-give_up_on_fault", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-16657897772059198501-00006", "replay_digest": "7131cd75b2cb82b2112ae2487d78e9cd24764fdf7d5841eb8fbbf7ae72315894", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-16657897772059198501-00006", "variant": "give_up_on_fault"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-16657897772059198501-00006", "recovery": {"error_turns": 0, "faults_fired": [], "recovered": false}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.give_up_on_fault"]}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-0\",\"tools\":[]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the calendar's first page listed no tools but gave nextCursor cursor-0; follow the cursor to read the real page", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-0\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":13,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177618-00008", "replay_digest": "c5f02974a50377bd97d2dc143bf19986d942b57767bd390d78bc1bc4b11c6058", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177618-00008", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773093821930177618-00008", "recovery": {"error_turns": 0, "faults_fired": ["calendar-empty-first-page"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Triage ticket T-104 on the tickets MCP server: initialize the session, discover its tools, read the triage policy resource and the triage prompt, read the ticket, set its status as the policy directs, read the status back, then report the ticket id and its new status.", "role": "user"}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the initialize result named the server and its protocol version; send notifications/initialized to finish the handshake the protocol requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the first page of tools and read each inputSchema before calling anything; the result may end with a nextCursor", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the first page ended with a nextCursor; request the second page with that cursor so no tool or schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the triage policy resource so the status decision follows the written requirement instead of a guess", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"tickets://policy\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/markdown\",\"text\":\"# Triage policy\\n\\n1. Read a ticket before changing it.\\n2. A ticket whose note records a reproduction moves to in_progress; one without a reproduction stays open.\\n3. A ticket that waits on another team is set blocked, and its note names the blocker.\\n4. Only a verified fix closes a ticket.\\n\",\"uri\":\"tickets://policy\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: fetch the triage prompt for T-104 to see the steps the server's own workflow lays out for this goal", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"prompts/get\", \"params\": {\"arguments\": {\"ticket_id\": \"T-104\"}, \"name\": \"triage\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"description\":\"Triage one ticket against the policy resource.\",\"messages\":[{\"content\":{\"text\":\"Triage ticket T-104: read it with get_ticket, apply tickets://policy, set its status with set_status, and read the status back with get_status before reporting.\",\"type\":\"text\"},\"role\":\"user\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the prompt says to read the ticket first; call get_ticket with the id argument the listed schema requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note records a reproduction, so the policy moves it to in_progress; call set_status with the arguments the listed schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\", \"status\": \"in_progress\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the server sent notifications/tools/list_changed and answered -32602; re-list the tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"in_progress\", \"ticket_id\": \"T-104\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-104\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: set_status returned without isError; read the status back with get_status to verify the server stored it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"in_progress\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows in_progress; report the ticket id and status the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 in_progress\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 in_progress", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:d4f86cc58b8467c2297414a938b3ac9ba80a4e6cef657a20837b296b06149e76", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354108869626306317-00009", "replay_digest": "05f48193931c4a00b36b8182b4d548048b6ad667c2b5eb35dfdd6ce599cbdc3c", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354108869626306317-00009", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-8354108869626306317-00009", "recovery": {"error_turns": 0, "faults_fired": ["set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "resource_read:server=tickets,uri=tickets://policy": true, "server_value:key=T-104,server=tickets,value=in_progress": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=18": true, "value_reported:value=T-104 in_progress": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Triage ticket T-104 on the tickets MCP server: initialize the session, discover its tools, read the triage policy resource and the triage prompt, read the ticket, set its status as the policy directs, read the status back, then report the ticket id and its new status.", "role": "user"}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: open the session with initialize so the server reports its protocol version and capabilities before any other request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the initialize result named the server and its protocol version; send notifications/initialized to finish the handshake the protocol requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the first page of tools and read each inputSchema before calling anything; the result may end with a nextCursor", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the first page ended with a nextCursor; request the second page with that cursor so no tool or schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the triage policy resource so the status decision follows the written requirement instead of a guess", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"resources/read\", \"params\": {\"uri\": \"tickets://policy\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"contents\":[{\"mimeType\":\"text/markdown\",\"text\":\"# Triage policy\\n\\n1. Read a ticket before changing it.\\n2. A ticket whose note records a reproduction moves to in_progress; one without a reproduction stays open.\\n3. A ticket that waits on another team is set blocked, and its note names the blocker.\\n4. Only a verified fix closes a ticket.\\n\",\"uri\":\"tickets://policy\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: fetch the triage prompt for T-104 to see the steps the server's own workflow lays out for this goal", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"prompts/get\", \"params\": {\"arguments\": {\"ticket_id\": \"T-104\"}, \"name\": \"triage\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":6,\"jsonrpc\":\"2.0\",\"result\":{\"description\":\"Triage one ticket against the policy resource.\",\"messages\":[{\"content\":{\"text\":\"Triage ticket T-104: read it with get_ticket, apply tickets://policy, set its status with set_status, and read the status back with get_status before reporting.\",\"type\":\"text\"},\"role\":\"user\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the prompt says to read the ticket first; call get_ticket with the id argument the listed schema requires", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note records a reproduction, so the policy moves it to in_progress; call set_status with the arguments the listed schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\", \"status\": \"in_progress\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"jsonrpc\":\"2.0\",\"method\":\"notifications/tools/list_changed\"}\n{\"error\":{\"code\":-32602,\"message\":\"invalid arguments: arguments: missing required property 'ticket_id'; arguments: unexpected property 'id'\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the server sent notifications/tools/list_changed and answered -32602; re-list the tools from the first page to read the current schema", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed first page ended with a nextCursor; read the second page, where set_status is listed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session (1.5.0: the ticket is named by ticket_id).\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"},\"ticket_id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"ticket_id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the refreshed schema names the ticket by ticket_id instead of id; call set_status again with the renamed argument", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"status\": \"in_progress\", \"ticket_id\": \"T-104\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-104\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: set_status returned without isError; read the status back with get_status to verify the server stored it", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"in_progress\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the read-back shows in_progress; report the ticket id and status the goal asked for", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 in_progress\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 in_progress", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:d4f86cc58b8467c2297414a938b3ac9ba80a4e6cef657a20837b296b06149e76", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-1486113412021786982-00012", "replay_digest": "2805662a5dbe4397b7ffbf4a8a48cf9144fa7372c1fd093564201913d368176f", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-1486113412021786982-00012", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-1486113412021786982-00012", "recovery": {"error_turns": 0, "faults_fired": ["set-status-drift"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "resource_read:server=tickets,uri=tickets://policy": true, "server_value:key=T-104,server=tickets,value=in_progress": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=18": true, "value_reported:value=T-104 in_progress": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "A teammate asked for the state of the CSV export ticket and quoted its id as T-103. On the tickets MCP server, initialize the session, discover the tools, look the quoted id up, and when it does not resolve find the right ticket from the queue listing; then report the ticket's id and state.", "role": "user"}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded; acknowledge with notifications/initialized so the server treats the client as ready for every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tools before calling any; the first page shows get_ticket's schema and whether a nextCursor follows", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing is paginated; read the remaining page so no tool and no schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: look up the quoted id T-103 exactly as the request gave it; the tool result will show whether it resolves", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-103\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"no entry for 'T-103'\",\"type\":\"text\"}],\"isError\":true}}", "role": "tool", "tool_result": {"error": "[{\"text\": \"no entry for 'T-103'\", \"type\": \"text\"}]", "ok": false}}, {"content": "Plan: the tool result came back with isError true and no entry for T-103: a lookup miss, not a transport error; list the queue to find the CSV export ticket", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":6,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-101 open: login page returns 500 after the 2026-10-07 deploy\\nT-102 open: nightly build fails in test_cache_eviction\\nT-104 open: CSV export drops the header row\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing shows the CSV export ticket as T-104, not T-103; read that ticket to confirm its title and state", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32603,\"message\":\"server restarted; session lost, initialize again\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "server restarted; session lost, initialize again", "ok": false}}, {"content": "Observation: the error says the server restarted and the session was lost; initialize again before repeating the request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the new session is initialized; send notifications/initialized so the retried request is accepted", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the observation reported 'server restarted'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket result confirms T-104 is the CSV export ticket and its state is open; report the id and state", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 open\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 open", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-gold", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:5b9e4d8c74db2b0aa1214a84b3d04d6c8123c28f337c8474481761b9c284b3d3", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17826467312815456775-00013", "replay_digest": "075f59437ed620e8fa4a90f85aca8531470e37c6c252344ab2e35cb1ba2bb1b8", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17826467312815456775-00013", "variant": "gold"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17826467312815456775-00013", "recovery": {"error_turns": 3, "faults_fired": ["list-rate-limited", "restart-before-lookup"], "recovered": true}, "result": {"curation": {"decision": "accept", "pipeline_version": "tool-world-v1", "reason_codes": []}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=list_tickets": true}, "public": {"max_steps:n=14": true, "value_reported:value=T-104 open": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "A teammate asked for the state of the CSV export ticket and quoted its id as T-103. On the tickets MCP server, initialize the session, discover the tools, look the quoted id up, and when it does not resolve find the right ticket from the queue listing; then report the ticket's id and state.", "role": "user"}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: start with initialize: the goal needs a live session before any tools/call, and the result shows the protocol version", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded; acknowledge with notifications/initialized so the server treats the client as ready for every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tools before calling any; the first page shows get_ticket's schema and whether a nextCursor follows", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing is paginated; read the remaining page so no tool and no schema is missed", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: look up the quoted id T-103 exactly as the request gave it; the tool result will show whether it resolves", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-103\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"no entry for 'T-103'\",\"type\":\"text\"}],\"isError\":true}}", "role": "tool", "tool_result": {"error": "[{\"text\": \"no entry for 'T-103'\", \"type\": \"text\"}]", "ok": false}}, {"content": "Plan: the tool result came back with isError true and no entry for T-103: a lookup miss, not a transport error; list the queue to find the CSV export ticket", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32000,\"data\":{\"retryAfterMs\":1000},\"message\":\"rate limited; retry after 1s\"},\"id\":6,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "rate limited; retry after 1s", "ok": false}}, {"content": "Observation: the observation reported 'rate limited'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {}, \"name\": \"list_tickets\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-101 open: login page returns 500 after the 2026-10-07 deploy\\nT-102 open: nightly build fails in test_cache_eviction\\nT-104 open: CSV export drops the header row\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the listing shows the CSV export ticket as T-104, not T-103; read that ticket to confirm its title and state", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"error\":{\"code\":-32603,\"message\":\"server restarted; session lost, initialize again\"},\"id\":8,\"jsonrpc\":\"2.0\"}", "role": "tool", "tool_result": {"error": "server restarted; session lost, initialize again", "ok": false}}, {"content": "Observation: the error says the server restarted and the session was lost; initialize again before repeating the request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the new session is initialized; send notifications/initialized so the retried request is accepted", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Observation: the observation reported 'server restarted'; retry the interrupted tool call", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-104\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-104 | CSV export drops the header row | reporter: dana | state: open | note: reproduced with export --format csv on the sample dataset\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket result confirms T-104 is the CSV export ticket and its state is open; report the id and state", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-104 open\"}", "name": "report_result"}]}, {"content": "recorded result: T-104 open", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-2-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:5b9e4d8c74db2b0aa1214a84b3d04d6c8123c28f337c8474481761b9c284b3d3", "run_id": "twd-run-2-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 2 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106843600743611514-00015", "replay_digest": "d677478f2fd403b5b2f01a1fbf422fbe071880ca5b92d224cb68415675513e96", "repo": "rmems/synthetic-factory", "seed": 2, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106843600743611514-00015", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-4106843600743611514-00015", "recovery": {"error_turns": 3, "faults_fired": ["list-rate-limited", "restart-before-lookup"], "recovered": true}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=tickets": true, "tool_called:server=tickets,tool=get_ticket": true, "tool_called:server=tickets,tool=list_tickets": true}, "public": {"max_steps:n=14": true, "value_reported:value=T-104 open": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
| {"family": "mcp-tool-use-episode", "license": "Apache-2.0", "messages": [{"content": "Ticket T-102, the nightly build failure, waits on the CI runner owners. Using both MCP servers, book 2026-10-12T11:00 on the calendar as 'CI runner sync' and set T-102 to blocked on the tickets server; initialize and discover the tools of each server separately, read both values back to verify, then report the ticket status and the booked slot.", "role": "user"}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect (first attempt sends the wrong argument type)", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": 7}", "name": "mcp"}]}, {"content": "error: invalid arguments for mcp: args.server: expected string, got int", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize the tickets session; its result reports the protocol version and capabilities to expect", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":1,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"tickets\",\"version\":\"1.4.0\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: initialize succeeded on tickets; send notifications/initialized so that server accepts every later request", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the tickets tools and read the first page of schema entries; a nextCursor would mean more pages", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":3,\"jsonrpc\":\"2.0\",\"result\":{\"nextCursor\":\"cursor-2\",\"tools\":[{\"description\":\"List the tickets in the engineering queue, one per line as id, state, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{},\"type\":\"object\"},\"name\":\"list_tickets\"},{\"description\":\"Read one ticket by id: title, reporter, state, and the latest note.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"description\":\"ticket id such as T-101\",\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_ticket\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the tickets listing continues at the captured cursor; read the second page so the set_status and get_status schema entries are known", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {\"cursor\": \"cursor-2\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":4,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"Set the workflow status of a ticket for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"},\"status\":{\"enum\":[\"open\",\"in_progress\",\"blocked\",\"closed\"],\"type\":\"string\"}},\"required\":[\"id\",\"status\"],\"type\":\"object\"},\"name\":\"set_status\"},{\"description\":\"Read back the workflow status set for a ticket in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"id\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"id\"],\"type\":\"object\"},\"name\":\"get_status\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar server is a separate session; initialize it too and check its result names calendar, not tickets", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"initialize\", \"params\": {\"clientInfo\": {\"name\": \"tool-world\", \"version\": \"1.0.0\"}, \"protocolVersion\": \"2025-06-18\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":5,\"jsonrpc\":\"2.0\",\"result\":{\"capabilities\":{\"prompts\":{},\"resources\":{},\"tools\":{\"listChanged\":true}},\"protocolVersion\":\"2025-06-18\",\"serverInfo\":{\"name\":\"calendar\",\"version\":\"0.9.2\"}}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the calendar initialize result arrived; send notifications/initialized to the calendar server as well", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"notifications/initialized\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"delivered\":true,\"jsonrpc\":\"2.0\",\"method\":\"notifications/initialized\",\"note\":\"notifications carry no response\"}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: list the calendar tools on their own server and read their schema before booking anything", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/list\", \"params\": {}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":7,\"jsonrpc\":\"2.0\",\"result\":{\"tools\":[{\"description\":\"List the events booked on one day, one per line as start, duration, and title.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"date\":{\"description\":\"ISO date such as 2026-10-12\",\"minLength\":10,\"type\":\"string\"}},\"required\":[\"date\"],\"type\":\"object\"},\"name\":\"list_events\"},{\"description\":\"Book a slot (an ISO date-time on a half-hour boundary) under a title for this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"description\":\"ISO date-time such as 2026-10-12T15:00\",\"minLength\":16,\"type\":\"string\"},\"title\":{\"minLength\":1,\"type\":\"string\"}},\"required\":[\"slot\",\"title\"],\"type\":\"object\"},\"name\":\"book_slot\"},{\"description\":\"Read the title booked under a slot in this session.\",\"inputSchema\":{\"additionalProperties\":false,\"properties\":{\"slot\":{\"minLength\":16,\"type\":\"string\"}},\"required\":[\"slot\"],\"type\":\"object\"},\"name\":\"get_slot\"}]}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read ticket T-102 on the tickets server to confirm it is the nightly build failure the goal names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_ticket\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":8,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"T-102 | nightly build fails in test_cache_eviction | reporter: ola | state: open | note: passes locally, fails only on the CI runner\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the ticket note says it fails only on the CI runner; book the CI runner sync on the calendar server with the slot and title the schema names", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\", \"title\": \"CI runner sync\"}, \"name\": \"book_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":9,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored 2026-10-12T11:00\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: the booking tool result reported stored; set T-102 to blocked on the tickets server because the ticket now waits on the sync", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\", \"status\": \"blocked\"}, \"name\": \"set_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":10,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"stored T-102\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the calendar slot back to verify the sync booking is held by the calendar server", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"slot\": \"2026-10-12T11:00\"}, \"name\": \"get_slot\"}, \"server\": \"calendar\"}", "name": "mcp"}]}, {"content": "{\"id\":11,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"CI runner sync\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: read the ticket status back on the tickets server to verify blocked was stored", "role": "assistant", "tool_calls": [{"arguments": "{\"method\": \"tools/call\", \"params\": {\"arguments\": {\"id\": \"T-102\"}, \"name\": \"get_status\"}, \"server\": \"tickets\"}", "name": "mcp"}]}, {"content": "{\"id\":12,\"jsonrpc\":\"2.0\",\"result\":{\"content\":[{\"text\":\"blocked\",\"type\":\"text\"}],\"isError\":false}}", "role": "tool", "tool_result": {"error": null, "ok": true}}, {"content": "Plan: both read-backs show the expected values; report the ticket status and the booked slot", "role": "assistant", "tool_calls": [{"arguments": "{\"value\": \"T-102 blocked; 2026-10-12T11:00 booked\"}", "name": "report_result"}]}, {"content": "recorded result: T-102 blocked; 2026-10-12T11:00 booked", "role": "tool", "tool_result": {"error": null, "ok": true}}], "provenance": {"actors": {"oracle": "tool_world.replay", "solver": {"model": "tool-world-scripted-policy", "outcome": "success", "run_id": "twd-run-3-b7c793de2f68", "tool_policy": "mcp-wrong_arg_type", "version": "7f6fa4deb3f4e08ec2ccf17f5499c7e05ad3c1ba74f0d6ce6be09b0374b9bc50"}, "task_author": {"model": "tool-world-pack", "prompt_hash": "sha256:462127aba7839d96efdb083627267cf7e8506739bc6faa87f650910091c91551", "run_id": "twd-run-3-b7c793de2f68", "version": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681"}}, "license": "Apache-2.0", "lineage": {"catalog_sha256": "b7c793de2f6837cae392d5284766d89c898a694ce0998f4c19f2c7982319b54c", "command": "python3 pipelines/tool_world_cli.py generate --catalog catalogs/tool-world-v1 --seed 3 --count <tasks> --variants all --factory tool-world-mcp-factory --out <run> --produced-at 2026-10-15T00:00:00Z", "commit_sha": "5e3b0488dd5671eceb47e3af9651e61d5a76373d", "gate": "tool_world replay agreement", "lane": "tool_world/mcp", "pack_sha256": "29787a1d91a4856f38f23427fdf454bbd136f1f1192a77221661fa43a5ffc681", "replay_command": "python3 pipelines/tool_world_cli.py replay <run_dir> --record twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773107016069716151-00004", "replay_digest": "db6611a9727754c00bd89c247af20b1289177bfe82c960776b61875e3f5c1799", "repo": "rmems/synthetic-factory", "seed": 3, "source_record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773107016069716151-00004", "variant": "wrong_arg_type"}, "produced_at": "2026-10-15T00:00:00Z"}, "record_id": "twd-29787a1d91a4856f-7f6fa4deb3f4e08e-17773107016069716151-00004", "recovery": {"error_turns": 0, "faults_fired": [], "recovered": false}, "result": {"curation": {"decision": "measure", "pipeline_version": "tool-world-v1", "reason_codes": ["tool_world.variant.wrong_arg_type"]}, "predicates": {"hidden": {"listed_before_call:server=calendar": true, "listed_before_call:server=tickets": true, "server_value:key=2026-10-12T11:00,server=calendar,value=CI runner sync": true, "server_value:key=T-102,server=tickets,value=blocked": true, "tool_called:server=calendar,tool=book_slot": true, "tool_called:server=calendar,tool=get_slot": true, "tool_called:server=tickets,tool=get_status": true, "tool_called:server=tickets,tool=set_status": true}, "public": {"max_steps:n=20": true, "value_reported:value=T-102 blocked; 2026-10-12T11:00 booked": true}}, "task_completed": true, "verified_by": "tool_world.replay + hidden predicates"}, "tools": [{"description": "Report the final result of the task. Ends the useful part of the episode.", "input_schema": {"additionalProperties": false, "properties": {"value": {"type": "string"}}, "required": ["value"], "type": "object"}, "name": "report_result"}, {"description": "Confirm an irreversible action before calling the tool that performs it.", "input_schema": {"additionalProperties": false, "properties": {"action": {"type": "string"}}, "required": ["action"], "type": "object"}, "name": "confirm_action"}, {"description": "Send one JSON-RPC request to a named MCP server and read its response.", "input_schema": {"additionalProperties": false, "properties": {"method": {"enum": ["initialize", "notifications/initialized", "tools/list", "tools/call", "resources/list", "resources/read", "prompts/list", "prompts/get"], "type": "string"}, "params": {"type": "object"}, "server": {"enum": ["calendar", "tickets"], "type": "string"}}, "required": ["server", "method"], "type": "object"}, "name": "mcp"}]} |
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