File size: 5,815 Bytes
68d7816 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 | import { randomUUID } from 'node:crypto';
import { type IDisposable } from '#/_base/di/lifecycle';
import { Service } from '#/_base/di/service';
import { LifecycleScope } from '#/app/scopes';
import { ScopeActivation, registerScopedService } from '#/_base/di/scope';
import { abortable } from '#/_base/utils/abort';
import { IAgentProfileService } from '#/agent/profile/profile';
import type {
ExecutableTool,
ExecutableToolContext,
ExecutableToolResult,
} from '#/tool/toolContract';
import { IAgentToolRegistryService } from '#/agent/toolRegistry/toolRegistry';
import { IAgentStateService } from '#/agent/state/agentState';
import {
INTERACTION_TAG_AGENT_ID,
INTERACTION_TAG_SESSION_ID,
INTERACTION_TAG_TOOL_CALL_ID,
INTERACTION_TAG_TURN_ID,
type InteractionTags,
} from '#/human/interaction/interaction';
import { interactions } from '#/human/interaction/facade';
import { IAgentScopeContext } from '#/agent/scopeContext/scopeContext';
import { ISessionContext } from '#/session/sessionContext/sessionContext';
import { IEventDispatcher } from '#/state/eventDispatcher';
import { IAgentUserToolService, type UserToolRegistration } from './userTool';
import {
ToolsRegisterUserTool,
ToolsUnregisterUserTool,
userToolKey,
} from './userToolOps';
interface UserToolExecutionRequest {
readonly turnId?: number;
readonly toolCallId: string;
readonly name: string;
readonly args: unknown;
}
export class AgentUserToolService extends Service implements IAgentUserToolService {
declare readonly _serviceBrand: undefined;
private readonly registrations = new Map<string, IDisposable>();
constructor(
@IAgentScopeContext private readonly scopeContext: IAgentScopeContext,
@IAgentToolRegistryService private readonly registry: IAgentToolRegistryService,
@IAgentProfileService private readonly profile: IAgentProfileService,
@ISessionContext private readonly session: ISessionContext,
@IEventDispatcher private readonly dispatcher: IEventDispatcher,
@IAgentStateService private readonly agentState: IAgentStateService,
) {
super();
this.agentState.contributeState(userToolKey);
this._register(
this.dispatcher.hooks.onDidRestore.register('user-tool', async (_ctx, next) => {
this.restoreRegisteredTools();
await next();
}),
);
}
list(): readonly UserToolRegistration[] {
return [...this.agentState.get(userToolKey).values()];
}
inheritUserTools(
parent: IAgentUserToolService,
activeToolNames?: readonly string[],
): void {
for (const registration of parent.list()) {
void this.dispatcher.dispatch(
new ToolsRegisterUserTool({ ...registration, agentId: this.scopeContext.agentId }),
);
const activate =
activeToolNames === undefined || activeToolNames.includes(registration.name);
this.applyRegister(registration, { activate });
}
}
register(input: UserToolRegistration): void {
void this.dispatcher.dispatch(
new ToolsRegisterUserTool({ ...input, agentId: this.scopeContext.agentId }),
);
this.applyRegister(input);
}
unregister(name: string): void {
void this.dispatcher.dispatch(
new ToolsUnregisterUserTool({ agentId: this.scopeContext.agentId, name }),
);
this.applyUnregister(name);
}
private restoreRegisteredTools(): void {
const persistedActive = this.profile.getActiveToolNames();
for (const registration of this.agentState.get(userToolKey).values()) {
const activate =
persistedActive === undefined || persistedActive.includes(registration.name);
this.applyRegister(registration, { activate });
}
}
private applyRegister(input: UserToolRegistration, options?: { readonly activate?: boolean }): void {
const { name, description, parameters } = input;
this.applyUnregister(name);
const tool: ExecutableTool = {
name,
description,
parameters,
resolveExecution: (args) => ({
approvalRule: name,
execute: (context) => this.executeUserTool(context, name, args),
}),
};
this.registrations.set(
name,
this._register(
this.registry.register(tool, { source: 'user', disclosure: input.disclosure }),
),
);
if (options?.activate === false) return;
this.profile.addActiveTool(name);
}
private applyUnregister(name: string): void {
const registration = this.registrations.get(name);
if (registration === undefined) return;
registration.dispose();
this.registrations.delete(name);
this.profile.removeActiveTool(name);
}
private async executeUserTool(
context: ExecutableToolContext,
name: string,
args: unknown,
): Promise<ExecutableToolResult> {
const id = `user_tool_${randomUUID()}`;
const tags: InteractionTags = {
[INTERACTION_TAG_AGENT_ID]: this.scopeContext.agentId,
[INTERACTION_TAG_SESSION_ID]: this.session.sessionId,
[INTERACTION_TAG_TOOL_CALL_ID]: context.toolCallId,
};
if (context.turnId !== undefined) tags[INTERACTION_TAG_TURN_ID] = context.turnId;
const request = interactions.request<UserToolExecutionRequest, ExecutableToolResult>({
id,
kind: 'user_tool',
payload: {
turnId: context.turnId,
toolCallId: context.toolCallId,
name,
args,
},
tags,
});
try {
return await abortable(request, context.signal);
} catch (error) {
if (context.signal.aborted) {
interactions.respond(id, {
output: `User tool "${name}" was aborted.`,
isError: true,
});
}
throw error;
}
}
}
registerScopedService(
LifecycleScope.Agent,
IAgentUserToolService,
AgentUserToolService,
ScopeActivation.OnScopeCreated,
'userTool',
);
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