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import os
import json
import re
import shutil
import socket
import subprocess
import sys
import threading
import time
import urllib.request
from pathlib import Path
from typing import Any
from voyager_learning import read_learning_state
from voyager_runtime_contract import (
EXPECTED_DIR, REFERENCE_DIR, UPSTREAM_COMMIT, apply_curriculum_retry_adaptation,
read_attestation,
)
from naldo_opencode import (
ALLOWED_MODELS,
BRAIN_PROFILE as NALDO_BRAIN_PROFILE,
BRIDGE_BASE as NALDO_BRIDGE_BASE,
BRIDGE_PORT as NALDO_BRIDGE_PORT,
OPENCODE_BASE as NALDO_OPENCODE_BASE,
OPENCODE_PORT as NALDO_OPENCODE_PORT,
PRIMARY_MODEL as NALDO_PRIMARY_MODEL,
check_bridge_health as _check_bridge_health,
check_opencode_health as _check_opencode_health,
ensure_opencode_installed,
is_loopback_url,
opencode_serve_command,
opencode_subprocess_env,
)
ROOT = Path(os.environ.get("VOYAGER_RUNTIME_HOME", "/tmp/voyager-runtime"))
PERSIST_ROOT = Path(os.environ.get("MINECRAFT_PERSIST_HOME", "/persist/minecraft-friends"))
CKPT_DIR = Path(os.environ.get("VOYAGER_PERSIST_CKPT", str(PERSIST_ROOT / "voyager" / "ckpt-20261003-normal-v1")))
# The new map starts EMPTY (resume=False): no skills, tasks or positions are
# ever carried from the old checkpoint. The old directory is preserved as-is
# for history, never read, modified or deleted by the new map.
CKPT_CORE_STATE = (
"curriculum/completed_tasks.json",
"curriculum/failed_tasks.json",
"skill/skills.json",
)
BOT_USERNAME = os.environ.get("MC_USERNAME", "Naldo_Bot")
BOT_DISPLAY_NAME = os.environ.get("BOT_DISPLAY_NAME", "Naldo Bot")
EMBED_BASE_URL = os.environ.get(
"VOYAGER_EMBED_BASE_URL",
os.environ.get("VOYAGER_BRAIN_BASE_URL", "https://erinaldordso-mine.hf.space/v1"),
).rstrip("/")
SRC = ROOT / "Voyager"
LOG_PATH = ROOT / "voyager.log"
SETUP_LOG = ROOT / "setup.log"
UPSTREAM = "https://github.com/MineDojo/Voyager.git"
def _log(message: str) -> None:
ROOT.mkdir(parents=True, exist_ok=True)
line = f"[{time.strftime('%Y-%m-%d %H:%M:%S')}] {message}"
print(line, flush=True)
with SETUP_LOG.open("a", encoding="utf-8", errors="replace") as fh:
fh.write(line + "\n")
def _wait_tcp(host: str, port: int, timeout: float) -> bool:
deadline = time.time() + timeout
while time.time() < deadline:
try:
with socket.create_connection((host, port), timeout=1):
return True
except OSError:
time.sleep(1)
return False
def _wait_embedding_ready(base_url: str, timeout: float = 180.0) -> bool:
deadline = time.monotonic() + timeout
payload = json.dumps({"model": "text-embedding-ada-002", "input": "health"}).encode("utf-8")
while time.monotonic() < deadline:
request = urllib.request.Request(
base_url.rstrip("/") + "/embeddings", data=payload, method="POST",
headers={"Content-Type": "application/json"},
)
try:
remaining = max(1.0, deadline - time.monotonic())
with urllib.request.urlopen(request, timeout=min(remaining, 120.0)) as response:
body = json.loads(response.read().decode("utf-8"))
if isinstance(body, dict) and body.get("data"):
return True
except Exception:
pass
time.sleep(1.0)
return False
def _terminate_naldo_child(stack: Any) -> None:
"""Stop only the Voyager child; brain processes are owned separately."""
try:
with stack.lock:
proc = stack.proc
except Exception:
proc = getattr(stack, "proc", None)
if proc is None or proc.poll() is not None:
return
try:
proc.terminate()
proc.wait(timeout=15)
except Exception:
try:
proc.kill()
except Exception:
pass
# Long autonomous sessions append to voyager.log for days. status() is called
# every 30s by the supervisor, so it must never read the whole file into
# memory. Read at most max_lines trailing lines via fixed-size seeks.
def tail_lines(path: Path, max_lines: int = 20000) -> list[str]:
try:
with path.open("rb") as fh:
fh.seek(0, os.SEEK_END)
size = fh.tell()
chunk_size = 65536
data = b""
position = size
while position > 0 and data.count(b"\n") <= max_lines:
step = min(chunk_size, position)
position -= step
fh.seek(position)
data = fh.read(step) + data
if len(data) > (max_lines + 1) * 512:
break
text = data.decode("utf-8", errors="replace")
lines = text.splitlines()
return lines[-max_lines:]
except OSError:
return []
# Restart backoff must not stay pinned at the maximum after an isolated crash
# that follows a long healthy run; otherwise the bot looks stopped for minutes
# after a single transient failure. Reset only on proven healthy uptime.
def restart_backoff_after(
backoff: int, uptime_s: float, initial: int = 5,
maximum: int = 120, healthy_s: float = 600.0,
) -> int:
if uptime_s >= healthy_s:
return initial
return min(backoff * 2, maximum)
def _run(args: list[str], cwd: Path, env: dict[str, str] | None = None, timeout: int = 900) -> None:
args = list(args)
if os.name == "nt" and args and args[0] in {"npm", "npx"}:
args[0] += ".cmd"
_log("exec " + " ".join(args))
proc = subprocess.run(
args,
cwd=str(cwd),
env=env,
text=True,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
timeout=timeout,
check=False,
)
output = proc.stdout or ""
with SETUP_LOG.open("a", encoding="utf-8", errors="replace") as fh:
fh.write(output)
if output and not output.endswith("\n"):
fh.write("\n")
if proc.returncode != 0:
raise RuntimeError(f"command failed rc={proc.returncode}: {' '.join(args)}\n{output[-4000:]}")
# The last Babel 7 releases. Upstream calls babel.parse() synchronously and Babel 8
# made parse() callback-only, which fails every action.
BABEL_PINS = {"@babel/core": "7.26.9", "@babel/generator": "7.26.9"}
# README "Installation": Voyager requires Python >= 3.9 and Node.js >= 16.13.0.
MIN_PYTHON = (3, 9)
MIN_NODE = (16, 13, 0)
def _require_python_version() -> str:
if sys.version_info[:2] < MIN_PYTHON:
raise RuntimeError(
f"Voyager requires Python >= {MIN_PYTHON[0]}.{MIN_PYTHON[1]}, "
f"this Space runs {sys.version_info[0]}.{sys.version_info[1]}"
)
return ".".join(str(part) for part in sys.version_info[:3])
def _require_node_version() -> str:
"""Read the Node.js version and enforce the README's minimum."""
proc = subprocess.run(
["node", "--version"],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=60,
)
reported = (proc.stdout or "").strip().lstrip("v")
try:
parts = tuple(int(part) for part in reported.split(".")[:3])
except ValueError as exc:
raise RuntimeError(f"could not read the Node.js version from {reported!r}") from exc
if parts < MIN_NODE:
raise RuntimeError(
f"Voyager requires Node.js >= {'.'.join(str(p) for p in MIN_NODE)}, this Space has {reported}"
)
return reported
def _replace_exact(text: str, old: str, new: str, what: str) -> str:
"""Replace exactly one occurrence; fail the boot instead of silently skipping.
A str.replace that misses its upstream marker leaves the file byte-identical
and the Space boots looking healthy on unpatched code. Every connection
guard below is load-bearing for EPIPE recovery, so a missed marker must
raise instead of being silently skipped.
"""
count = text.count(old)
if count != 1:
raise RuntimeError(
f"Voyager {what} marker changed upstream (found {count}x); refusing unsafe patch"
)
return text.replace(old, new, 1)
def _is_fresh_checkpoint(ckpt: Path) -> bool:
"""True when a checkpoint directory holds no carried state.
Mirrors the runner's resume decision (any of the core state files present
means persisted state): a fresh map directory must contain none of them,
so the runner boots with resume=False and an empty library.
"""
return not any((ckpt / relative).exists() for relative in CKPT_CORE_STATE)
class VoyagerStack:
def __init__(self) -> None:
self.lock = threading.RLock()
self.worker: threading.Thread | None = None
self.proc: subprocess.Popen[str] | None = None
self.opencode_proc: subprocess.Popen[str] | None = None
self.bridge_proc: subprocess.Popen[str] | None = None
self.state = "stopped"
self.error = ""
self.started_at: float | None = None
self.stop_event = threading.Event()
self.restart_count = 0
def _brain_procs(self) -> tuple[subprocess.Popen[str] | None, subprocess.Popen[str] | None]:
with self.lock:
return self.opencode_proc, self.bridge_proc
def _snapshot_upstream_reference(self) -> None:
"""Keep a pristine copy of every file the patcher may rewrite.
The boot-time attestation compares the live decision methods against
these snapshots, so a substituted Curriculum/Action/Critic cannot pass
as an unmodified upstream checkout.
"""
for relative in (
"voyager/voyager.py",
"voyager/agents/curriculum.py",
"voyager/agents/action.py",
"voyager/agents/critic.py",
"voyager/agents/skill.py",
"voyager/prompts/curriculum.txt",
"voyager/prompts/action_template.txt",
"voyager/prompts/critic.txt",
):
source = SRC / relative
if not source.exists():
raise RuntimeError(f"Upstream file missing before patching: {relative}")
for directory in (REFERENCE_DIR, EXPECTED_DIR):
destination = SRC / directory / relative
destination.parent.mkdir(parents=True, exist_ok=True)
shutil.copyfile(source, destination)
def _publish_expected_curriculum(self) -> None:
"""Record the single declared adaptation to Curriculum.propose_next_ai_task."""
relative = "voyager/agents/curriculum.py"
expected = SRC / EXPECTED_DIR / relative
expected.write_text(
apply_curriculum_retry_adaptation(expected.read_text(encoding="utf-8")),
encoding="utf-8",
)
def _patch_runtime_source(self) -> None:
self._snapshot_upstream_reference()
index_js = SRC / "voyager" / "env" / "mineflayer" / "index.js"
text = index_js.read_text(encoding="utf-8")
text = text.replace('username: "bot",', 'username: process.env.MC_USERNAME || "Naldo_Bot",')
text = text.replace(
' port: req.body.port, // minecraft server port\n username: process.env.MC_USERNAME || "Naldo_Bot",',
' port: req.body.port, // minecraft server port\n version: "1.19", // server is pinned to Java 1.19; never auto-detect a different patch protocol\n username: process.env.MC_USERNAME || "Naldo_Bot",',
)
# The per-connection helpers are copied to lib/voyager_connection.js
# below. This import is what makes them real: without it the copy is
# dead code and a pending /step parks Python with position frozen.
text = _replace_exact(
text,
'const { plugin: tool } = require("mineflayer-tool");',
'const { plugin: tool } = require("mineflayer-tool");\n'
'const { installConnectionGuards, isReady, startLifecycle, restoreCreativeInventory } = require("./lib/voyager_connection");',
"connection-helper import",
)
# Per-connection startup: paced chat queue + physics-wait guards plus a
# 120s startup deadline that answers a pre-spawn kick with 503 instead
# of hanging Python. startLifecycle captures THIS instance, so a delayed
# "end" from a previous socket can never null a new bot. The lifecycle
# owns startup errors EXCLUSIVELY: upstream's unfiltered
# onConnectionFailed is removed below, because it nulled the global bot
# on ANY error, including a benign post-ready one.
text = _replace_exact(
text,
' bot.once("error", onConnectionFailed);',
' installConnectionGuards(bot);\n'
' const startupBot = bot;\n'
' const startupLifecycle = startLifecycle(bot, res, () => {\n'
' if (bot === startupBot) bot = null;\n'
' });',
"startup lifecycle",
)
# A delayed "end"/"kicked" from a previous socket must never stop the
# new bot: upstream's handlers act on the GLOBAL bot, so an old socket
# closing after a restart ends the replacement connection. Shut the
# restarting instance down inline and make the handlers instance-aware.
text = _replace_exact(
text,
' if (bot) onDisconnect("Restarting bot");\n bot = null;',
' const restartingBot = bot;\n'
' if (restartingBot) {\n'
' if (restartingBot.viewer) {\n'
' restartingBot.viewer.close();\n'
' }\n'
' restartingBot.end();\n'
' console.log("Restarting bot");\n'
' }\n'
' bot = null;',
"restart isolation",
)
# Upstream's unfiltered onConnectionFailed nulled the global bot on ANY
# error, including a benign post-ready one. The lifecycle above owns all
# startup errors now, so the legacy handler is deleted entirely.
text = _replace_exact(
text,
' function onConnectionFailed(e) {\n'
' console.log(e);\n'
' bot = null;\n'
' res.status(400).json({ error: e });\n'
' }\n',
' // onConnectionFailed removed: startLifecycle owns startup errors.\n',
"remove legacy error handler",
)
text = _replace_exact(
text,
' function onDisconnect(message) {\n'
' if (bot.viewer) {\n'
' bot.viewer.close();\n'
' }\n'
' bot.end();\n'
' console.log(message);\n'
' bot = null;\n'
' }',
' function onDisconnect(message) {\n'
' if (startupBot.viewer) {\n'
' startupBot.viewer.close();\n'
' }\n'
' startupBot.end();\n'
' console.log(message);\n'
' if (bot === startupBot) bot = null;\n'
' }',
"disconnect isolation",
)
text = _replace_exact(
text,
' bot.once("spawn", async () => {\n'
' bot.removeListener("error", onConnectionFailed);\n'
' let itemTicks = 1;',
' bot.once("spawn", async () => {\n'
' // A late spawn from a replaced socket must not touch the new\n'
' // bot, and the lifecycle may already have answered 503 on a\n'
' // pre-spawn timeout/disconnect: never answer twice.\n'
' if (bot !== startupBot || res.headersSent) return;\n'
' let itemTicks = 1;',
"spawn isolation",
)
# Upstream rebuilds a hard-reset inventory with one chat /give per item,
# which vanilla 1.19 rate-limits as spam. Restore through the Creative
# inventory protocol instead; existing stacks and NBT are preserved and
# only missing items are added, so no per-item tick wait is needed.
hard_reset_old = ''' let itemTicks = 1;
if (req.body.reset === "hard") {
bot.chat("/clear @s");
bot.chat("/kill @s");
const inventory = req.body.inventory ? req.body.inventory : {};
const equipment = req.body.equipment
? req.body.equipment
: [null, null, null, null, null, null];
for (let key in inventory) {
bot.chat(`/give @s minecraft:${key} ${inventory[key]}`);
itemTicks += 1;
}
const equipmentNames = [
"armor.head",
"armor.chest",
"armor.legs",
"armor.feet",
"weapon.mainhand",
"weapon.offhand",
];
for (let i = 0; i < 6; i++) {
if (i === 4) continue;
if (equipment[i]) {
bot.chat(
`/item replace entity @s ${equipmentNames[i]} with minecraft:${equipment[i]}`
);
itemTicks += 1;
}
}
}
'''
hard_reset_new = ''' let itemTicks = 1;
if (req.body.reset === "hard") {
const hardInventory = req.body.inventory ? req.body.inventory : {};
const hardEquipment = req.body.equipment
? req.body.equipment
: [null, null, null, null, null, null];
await restoreCreativeInventory(startupBot, hardInventory, hardEquipment);
}
'''
text = _replace_exact(text, hard_reset_old, hard_reset_new, "creative hard reset")
text = _replace_exact(
text,
' await bot.waitForTicks(bot.waitTicks * itemTicks);\n res.json(bot.observe());',
' await startupBot.waitForTicks(startupBot.waitTicks * itemTicks);\n'
' startupLifecycle.ready();\n'
' res.json(startupBot.observe());',
"startup ready",
)
creative_spawn = ''' // Creative mode is the documented Voyager world mode. Populate a\n // compact toolkit through Mineflayer\'s creative inventory protocol,\n // not chat commands (which vanilla can rate-limit as spam).\n const CreativeItem = require("prismarine-item")(bot.registry);\n const voyagerToolkit = [\n ["netherite_pickaxe", 1], ["netherite_axe", 1],\n ["netherite_shovel", 1], ["netherite_sword", 1],\n ["netherite_hoe", 1], ["shears", 1], ["flint_and_steel", 1],\n ["bow", 1], ["crossbow", 1], ["fishing_rod", 1],\n ["shield", 1], ["bucket", 1], ["arrow", 64],\n ["crafting_table", 1], ["furnace", 1]\n ];\n for (const [item, count] of voyagerToolkit) {\n const current = bot.inventory.items()\n .filter((stack) => stack.name === item)\n .reduce((sum, stack) => sum + stack.count, 0);\n if (current >= count) continue;\n const itemData = bot.registry.itemsByName[item];\n if (!itemData) continue;\n let slot = -1;\n for (let i = 9; i <= 44; i++) {\n if (!bot.inventory.slots[i]) { slot = i; break; }\n }\n if (slot === -1) break;\n await bot.creative.setInventorySlot(\n slot, new CreativeItem(itemData.id, Math.min(count - current, itemData.stackSize || 64))\n );\n }\n\n'''
spawn_marker = " if (req.body.position) {\n"
if creative_spawn.strip() not in text:
if spawn_marker not in text:
raise RuntimeError("Voyager spawn marker changed; refusing creative-mode patch")
text = text.replace(spawn_marker, creative_spawn + spawn_marker, 1)
text = text.replace(
'app.post("/step", async (req, res) => {\n // import useful package',
'app.post("/step", async (req, res) => {\n if (!bot || !bot.entity) {\n res.status(503).json({ error: "Bot not spawned" });\n return;\n }\n // import useful package',
)
text = _replace_exact(
text,
' let response_sent = false;\n function otherError(err) {',
''' let response_sent = false;\n let step_finished = false;\n const stepBot = bot;\n function failStepOnDisconnect(reason) {\n // Always answer THIS pending request, even if the global bot was\n // swapped or nulled since: this only resolves the old request with\n // 503 and never touches the new connection.\n if (step_finished || response_sent) return;\n response_sent = true;\n let detail = "disconnected";\n try {\n detail = typeof reason === "string" ? reason : JSON.stringify(reason);\n } catch (_) {}\n console.error(`Mineflayer disconnected during /step: ${detail}`);\n if (!res.headersSent) {\n res.status(503).json({ error: `Mineflayer disconnected during step: ${detail}` });\n }\n cleanupStepDisconnectListeners();\n }\n function failStepOnSocketError(error) {\n const code = error && error.code;\n const message = String((error && error.message) || error || "");\n if (code === "EPIPE" || code === "ECONNRESET" || message.includes("EPIPE") || message.includes("ECONNRESET") || message.includes("Framer") || message.includes("Socket closed")) {\n failStepOnDisconnect(error);\n }\n }\n function cleanupStepDisconnectListeners() {\n step_finished = true;\n stepBot.removeListener("end", failStepOnDisconnect);\n stepBot.removeListener("kicked", failStepOnDisconnect);\n stepBot.removeListener("error", failStepOnSocketError);\n }\n stepBot.once("end", failStepOnDisconnect);\n stepBot.once("kicked", failStepOnDisconnect);\n // Persistent filtered error listener: a benign action error must neither\n // answer the step nor consume a once() handler that a later EPIPE needs.\n stepBot.on("error", failStepOnSocketError);\n function otherError(err) {''',
"step disconnect guard",
)
text = _replace_exact(
text,
' const r = await evaluateCode(code, programs);\n process.off("uncaughtException", otherError);',
' const r = await evaluateCode(code, programs);\n'
' process.off("uncaughtException", otherError);\n'
' // A disconnect mid-step already answered 503 and may have nulled\n'
' // the global bot. Never continue into returnItems/observe on a\n'
' // dead connection; just detach and leave the 503 standing.\n'
' if (response_sent) {\n'
' stepBot.removeListener("physicTick", onTick);\n'
' cleanupStepDisconnectListeners();\n'
' return;\n'
' }',
"step early exit after disconnect",
)
text = _replace_exact(
text,
' bot.removeListener("physicTick", onTick);',
' bot.removeListener("physicTick", onTick);\n cleanupStepDisconnectListeners();',
"step listener cleanup",
)
text = _replace_exact(
text,
' function otherError(err) {\n console.log("Uncaught Error");',
' function otherError(err) {\n'
' if (!bot || response_sent) return;\n'
' console.log("Uncaught Error");',
"uncaught-error guard",
)
text = _replace_exact(
text,
' // Event subscriptions',
''' // Mineflayer/pathfinder can occasionally generate NaN/Infinity movement\n // coordinates after a failed path/reset. Vanilla rejects those with\n // "Invalid move player packet received" and kicks the bot. Block only\n // malformed movement packets; valid movement is untouched.\n if (bot._client && typeof bot._client.write === "function") {\n const originalWrite = bot._client.write.bind(bot._client);\n bot._client.write = (name, data, ...args) => {\n if (data && ["position", "position_look", "look", "flying"].includes(name)) {\n const numericFields = ["x", "y", "z", "yaw", "pitch"];\n const invalid = numericFields.some((field) =>\n Object.prototype.hasOwnProperty.call(data, field) &&\n typeof data[field] === "number" &&\n !Number.isFinite(data[field])\n );\n if (invalid) {\n console.warn("Blocked invalid movement packet", name, data);\n return;\n }\n }\n return originalWrite(name, data, ...args);\n };\n }\n\n // Event subscriptions''',
"movement guard",
)
evaluate_marker = " async function evaluateCode(code, programs) {\n"
inventory_guard = ''' // Official Voyager skills use bot.inventory.count(...) for quantities.\n // Reject stack-count code from the local LLM before it can consume resources.\n const directLengthBug = /bot\\.inventory\\.items\\(\\)(?:\\.filter\\([\\s\\S]{0,300}?\\))?\\.length\\b/;\n const assignedLengthBug = /(?:const|let|var)\\s+([A-Za-z_$][\\w$]*)\\s*=\\s*bot\\.inventory\\.items\\(\\)\\.filter\\([\\s\\S]{0,300}?\\);[\\s\\S]{0,500}?\\1\\.length\\b/;\n if (directLengthBug.test(code) || assignedLengthBug.test(code)) {\n throw new Error("Inventory quantity bug: array.length counts stacks, not items. Use bot.inventory.count(mcData.itemsByName.<item>.id) or sum item.count.");\n }\n'''
if inventory_guard.strip() not in text:
if evaluate_marker not in text:
raise RuntimeError("Voyager evaluateCode marker changed; refusing inventory guard patch")
text = text.replace(evaluate_marker, evaluate_marker + inventory_guard, 1)
health_route = '''app.get("/health", (req, res) => {\n const inventory = {};\n if (bot && bot.inventory) {\n for (const item of bot.inventory.items()) {\n inventory[item.name] = (inventory[item.name] || 0) + item.count;\n }\n }\n res.json({\n ready: isReady(bot),\n username: bot?.username || null,\n game_mode: bot?.game?.gameMode || null,\n position: bot?.entity?.position ? {\n x: bot.entity.position.x, y: bot.entity.position.y, z: bot.entity.position.z\n } : null,\n inventory\n });\n});\n\n'''
stop_marker = 'app.post("/stop", (req, res) => {\n'
if health_route.strip() not in text:
if stop_marker not in text:
raise RuntimeError("Voyager stop marker changed; refusing health-route patch")
text = text.replace(stop_marker, health_route + stop_marker, 1)
text = text.replace(
'app.post("/stop", (req, res) => {\n bot.end();',
'app.post("/stop", (req, res) => {\n if (bot) bot.end();',
)
# /pause toggles the mod's GLOBAL forcePause, not one player's state.
# Independent Voyagers and Xbox players share this always-on server.
pause_route = text.index('app.post("/pause", (req, res) => {')
pause_end = text.index("// Server listening", pause_route)
text = text[:pause_route] + '''app.post("/pause", (req, res) => {
if (!bot || !bot.entity) {
res.status(503).json({ error: "Bot not spawned" });
return;
}
res.json({ message: "Success", shared_world: true });
});
''' + text[pause_end:]
text = text.replace(
' bot.cumulativeObs = [];\n await bot.waitForTicks(bot.waitTicks);',
' bot.cumulativeObs = [];\n'
' bot._voyagerVerifiedActions = [];\n'
' bot._voyagerStepStart = {x:bot.entity.position.x,y:bot.entity.position.y,z:bot.entity.position.z};\n'
' await bot.waitForTicks(bot.waitTicks);', 1,
)
text = text.replace(
' bot.pathfinder.setMovements(movements);',
' if (bot.game.gameMode === "creative") {\n'
# canDig stays at its upstream default on purpose. A mining bot digs
# its own shaft, and only the pathfinder can dig it back out; turning
# this off strands the bot in a hole it can never leave.
' movements.allow1by1towers = false;\n'
' movements.maxDropDown = 2;\n'
' }\n'
' bot.pathfinder.thinkTimeout = 5000;\n'
' bot.pathfinder.tickTimeout = 40;\n'
' bot.pathfinder.searchRadius = 64;\n'
' bot.pathfinder.setMovements(movements);', 1,
)
index_js.write_text(text, encoding="utf-8")
observation_path = SRC / "voyager/env/mineflayer/lib/observation/base.js"
observation_text = observation_path.read_text(encoding="utf-8")
observation_text = observation_text.replace(
' bot.cumulativeObs.push([event_name, result]);',
' result.verified_actions = JSON.parse(JSON.stringify(bot._voyagerVerifiedActions || []));\n'
' result.step_start_position = bot._voyagerStepStart || null;\n'
' bot.cumulativeObs.push([event_name, result]);', 1,
)
observation_path.write_text(observation_text, encoding="utf-8")
support = Path(__file__).resolve().parent
shutil.copyfile(support / "voyager_verification.py", SRC / "voyager_verification.py")
shutil.copyfile(support / "minecraft_ids_1_19.json", SRC / "minecraft_ids_1_19.json")
shutil.copyfile(support / "voyager_place.js", SRC / "voyager/control_primitives/placeItem.js")
# Per-connection guards: paced chat queue (limit 128, reject on close),
# physics-wait rejection on end/kicked/error, and startup/disconnect
# deadlines. Without this copy the EPIPE/Socket/Framer path has no
# guard and a pending /step parks Python with position frozen.
connection_lib = SRC / "voyager" / "env" / "mineflayer" / "lib" / "voyager_connection.js"
connection_lib.parent.mkdir(parents=True, exist_ok=True)
shutil.copyfile(support / "voyager_connection.js", connection_lib)
# The runner's brain lock imports these constants; keep a copy inside
# the runtime tree so the child process resolves the same module.
shutil.copyfile(support / "naldo_opencode.py", SRC / "naldo_opencode.py")
# No local build template is installed. Upstream ships no buildProject
# and no placeBlocks: geometry is the Action Agent's responsibility, via
# the official placeItem primitive. The earlier closed build catalog was
# a local planning layer, not upstream behavior.
# Upstream mineBlock calls findBlocks(maxDistance=32, count=1024) and
# passes a large target set to collectBlock. On this shared CPU runtime,
# that can starve Mineflayer's keepalive long enough for vanilla to kick
# the client with "Timed out". Mine one nearest block at a time instead.
mine_block = SRC / "voyager" / "control_primitives" / "mineBlock.js"
primitive = r'''async function mineBlock(bot, name, count = 1) {
if (typeof name !== "string") {
throw new Error(`name for mineBlock must be a string`);
}
if (typeof count !== "number" || !Number.isFinite(count) || count < 1) {
throw new Error(`count for mineBlock must be a positive number`);
}
const blockByName = mcData.blocksByName[name];
if (!blockByName) {
throw new Error(`No block named ${name}`);
}
const wanted = Math.max(1, Math.floor(count));
let mined = 0;
const minedPositions = [];
while (mined < wanted) {
// Upstream searches every block within range. This keeps a floor so a
// mining bot digs a shaft it can walk out of instead of chasing a seam
// indefinitely; the bot's own level and the two layers under its feet are
// the working face, and it descends one step per mined block.
const playerFloorY = Math.floor(bot.entity.position.y) - 2;
const block = bot.findBlock({
matching: (candidate) => Boolean(candidate) &&
Boolean(candidate.position) &&
[candidate.position.x, candidate.position.y, candidate.position.z]
.every(Number.isFinite) &&
candidate.type === blockByName.id &&
candidate.position.y >= playerFloorY,
maxDistance: 32,
});
if (!block) {
bot.chat(`No ${name} nearby, please explore first`);
throw new Error(`No ${name} within 32 blocks; explore on the surface before calling mineBlock again`);
}
// Creative mode has no block drops. collectBlock is designed to dig
// and then collect the dropped item, so use the native Mineflayer dig
// primitive instead. Mineflayer documents creative dig time as zero.
if (bot.game && bot.game.gameMode === "creative") {
bot.pathfinder.thinkTimeout = 5000;
bot.pathfinder.tickTimeout = 40;
bot.pathfinder.searchRadius = 64;
try {
await bot.pathfinder.goto(new GoalLookAtBlock(block.position, bot.world));
await bot.dig(block, true);
await bot.waitForTicks(2);
const remaining = bot.blockAt(block.position);
if (!remaining || remaining.type === block.type) {
throw new Error(`Creative dig made no block change for ${name}`);
}
mined++;
minedPositions.push([block.position.x, block.position.y, block.position.z]);
continue;
} catch (err) {
try { bot.pathfinder.setGoal(null); } catch (_) {}
throw err;
}
}
// Survival branch: require a real harvesting tool and use collectBlock
// so Voyager also picks up the dropped resource.
const canHarvest = block.canHarvest(null) ||
bot.inventory.items().some((item) => block.canHarvest(item.type));
if (!canHarvest) {
const tools = Object.keys(blockByName.harvestTools || {})
.map((id) => mcData.items[id]?.name).filter(Boolean);
throw new Error(`Missing harvest tool for ${name}; obtain/craft one of: ${tools.join(", ")}`);
}
bot.pathfinder.thinkTimeout = 5000;
bot.pathfinder.tickTimeout = 40;
bot.pathfinder.searchRadius = 64;
try {
await bot.collectBlock.collect(block, {
ignoreNoPath: false,
count: 1,
});
const remaining = bot.blockAt(block.position);
if (!remaining || remaining.type === block.type) {
throw new Error(`Collection made no block change for ${name}; inspect prerequisites and path`);
}
mined++;
minedPositions.push([block.position.x, block.position.y, block.position.z]);
await bot.waitForTicks(2);
} catch (err) {
try { bot.pathfinder.setGoal(null); } catch (_) {}
throw err;
}
}
bot._voyagerVerifiedActions = bot._voyagerVerifiedActions || [];
bot._voyagerVerifiedActions.push({kind:"mine",name,positions:minedPositions});
bot.save(`${name}_mined`);
}
'''
mine_block.write_text(primitive, encoding="utf-8")
creative_give = SRC / "voyager" / "control_primitives" / "creativeGiveItem.js"
creative_give.write_text(r'''async function creativeGiveItem(bot, name, count = 1) {
if (typeof name !== "string" || typeof count !== "number" || count < 1) {
throw new Error("creativeGiveItem requires an item name and positive count");
}
if (bot.game.gameMode !== "creative") {
throw new Error("creativeGiveItem requires Creative mode");
}
const itemData = bot.registry.itemsByName[name];
if (!itemData) throw new Error(`No item named ${name}`);
const current = bot.inventory.items()
.filter((stack) => stack.name === name)
.reduce((sum, stack) => sum + stack.count, 0);
let remaining = Math.max(0, Math.floor(count) - current);
if (remaining === 0) return;
const Item = require("prismarine-item")(bot.registry);
// Keep the persistent toolkit and armor. In Creative, replace an old
// expendable stack when all 36 ordinary inventory slots are occupied.
// Prefer a building block, then another non-tool item; never clear the
// entire inventory or require a chat /give command.
const protectedItems = new Set([
"netherite_pickaxe", "netherite_axe", "netherite_shovel", "netherite_sword",
"netherite_hoe", "shears", "flint_and_steel", "bow", "crossbow",
"fishing_rod", "shield", "bucket", "arrow", "crafting_table", "furnace",
"netherite_helmet", "netherite_chestplate", "netherite_leggings", "netherite_boots"
]);
while (remaining > 0) {
let slot = -1;
for (const [start, end] of [[9, 35], [36, 44]]) {
for (let i = end; i >= start; i--) {
if (!bot.inventory.slots[i]) { slot = i; break; }
}
if (slot !== -1) break;
}
for (let phase = 0; slot === -1 && phase < 2; phase++) {
for (const [start, end] of [[9, 35], [36, 44]]) {
for (let i = end; i >= start; i--) {
const old = bot.inventory.slots[i];
if (!old || old.name === name || protectedItems.has(old.name)) continue;
if (phase === 0 && !bot.registry.blocksByName[old.name]) continue;
slot = i;
break;
}
if (slot !== -1) break;
}
}
if (slot === -1) throw new Error(`No replaceable Creative inventory slot for ${name}`);
const stackCount = Math.min(remaining, itemData.stackSize || 64);
await bot.creative.setInventorySlot(slot, new Item(itemData.id, stackCount));
remaining -= stackCount;
}
}
''', encoding="utf-8")
creative_give_context = SRC / "voyager" / "control_primitives_context" / "creativeGiveItem.js"
creative_give_context.write_text(r'''// Creative-only helper. Use this when an Obtain/Get/Craft task requires
// a vanilla item that is missing from the live Inventory.
async function creativeGiveItem(bot, name, count = 1) {
// Adds up to `count` total items of `name` using Mineflayer's
// Creative inventory API. Throws outside Creative mode or for bad names.
}
''', encoding="utf-8")
# Voyager's upstream exploreUntil allows Vec3(0,-1,0), which makes
# GoalNear select a point 10-29 blocks below the bot every two seconds.
# That behavior is useful in Survival cave exploration but is harmful in
# this Creative agent: it blindly drives the pathfinder underground even
# when the requested block is already inside findBlock's 32-block range.
explore_until = SRC / "voyager" / "control_primitives" / "exploreUntil.js"
explore_until.write_text(r'''async function exploreUntil(
bot,
direction,
maxTime = 60,
callback = () => false
) {
if (typeof maxTime !== "number" || !Number.isFinite(maxTime) || maxTime <= 0) {
throw new Error("maxTime must be a finite positive number");
}
if (typeof callback !== "function") throw new Error("callback must be a function");
const initial = callback();
if (initial) {
return Promise.resolve(initial);
}
if (!direction || ![direction.x, direction.y, direction.z]
.every((value) => Number.isFinite(Number(value)))) {
throw new Error("direction must contain three finite coordinates");
}
// Models may generate a continuous random vector. Preserve its signs while
// adapting it to the discrete directions required by the Voyager primitive.
let dx = Math.sign(Number(direction.x));
let dy = Math.sign(Number(direction.y));
let dz = Math.sign(Number(direction.z));
if (dx === 0 && dy === 0 && dz === 0) {
throw new Error("direction cannot be 0, 0, 0");
}
// Creative safety policy: exploration is horizontal. Mining primitives may
// still path to blocks above/below when an actual block coordinate exists.
if (bot.game && bot.game.gameMode === "creative" && dx === 0 && dz === 0) {
const candidates = [[1,0],[-1,0],[0,1],[0,-1],[1,1],[1,-1],[-1,1],[-1,-1]];
[dx, dz] = candidates[Math.floor(Math.random() * candidates.length)];
}
if (bot.game && bot.game.gameMode === "creative") dy = 0;
maxTime = Math.min(maxTime, 120);
const start = {x: bot.entity.position.x, z: bot.entity.position.z};
return new Promise((resolve, reject) => {
let explorationInterval;
let maxTimeTimeout;
const cleanUp = () => {
clearInterval(explorationInterval);
clearTimeout(maxTimeTimeout);
try { bot.pathfinder.setGoal(null); } catch (_) {}
};
const explore = () => {
try {
const result = callback();
if (result) {
cleanUp();
resolve(result);
return;
}
let distance = Math.floor(Math.random() * 12 + 8);
if (bot.game && bot.game.gameMode === "creative") {
const travelled = Math.hypot(
bot.entity.position.x - start.x, bot.entity.position.z - start.z
);
const remaining = 32 - travelled;
if (remaining <= 1) {
cleanUp();
resolve(null);
return;
}
distance = Math.min(distance, remaining / Math.hypot(dx, dz));
}
const x = bot.entity.position.x + distance * dx;
const y = bot.entity.position.y + distance * dy;
const z = bot.entity.position.z + distance * dz;
const goal = dy === 0 ? new GoalNearXZ(x, z) : new GoalNear(x, y, z);
bot.pathfinder.setGoal(goal);
} catch (err) {
cleanUp();
reject(err);
}
};
explorationInterval = setInterval(explore, 1500);
maxTimeTimeout = setTimeout(() => {
cleanUp();
resolve(null);
}, maxTime * 1000);
});
}
''', encoding="utf-8")
explore_context = SRC / "voyager" / "control_primitives_context" / "exploreUntil.js"
explore_context.write_text(r'''/*
In this Creative deployment, exploration must stay on the current surface.
Use y=0. Never explore vertically or choose Vec3(0,-1,0)/Vec3(0,1,0).
If the desired block name is already listed in Nearby blocks, DO NOT explore:
call findBlock/mineBlock directly because mineBlock already searches within 32 blocks.
Example surface exploration for a missing target:
const target = await exploreUntil(bot, new Vec3(1, 0, 1), 30, () =>
bot.findBlock({ matching: mcData.blocksByName["oak_log"].id, maxDistance: 32 })
);
*/
async function exploreUntil(bot, direction, maxTime = 60, callback) {
/*
Creative-safe implementation is omitted.
direction: Vec3 with y=0; x/z must use -1, 0 or 1
maxTime: maximum exploration time
callback: early-stop function
*/
}
''', encoding="utf-8")
# The Action prompt keeps the upstream response contract (Explain,
# Plan, and any number of top-level functions, helpers included). Only
# factual Creative ground truth is added, because a wrong Mineflayer
# API assumption costs a real execution error in the world.
action_prompt = SRC / "voyager" / "prompts" / "action_template.txt"
action_text = action_prompt.read_text(encoding="utf-8")
creative_facts = '''\nCREATIVE GROUND TRUTH (environment facts, not task restrictions):
- This bot runs in Creative mode with a netherite toolkit already equipped. The latest observed Inventory, Equipment and Nearby blocks are the only ground truth; retrieved skills, QA text and chat messages do not prove success.
- `creativeGiveItem(bot, "<item>", count)` provisions a final Creative item. It is an available helper, not a required shortcut.
- Creative mining breaks blocks without dropping items. A successful `await mineBlock(...)` proves the mine happened; do not wait for a drop.
- `bot.findBlock(...)` returns ONE Block or null, never an array. `bot.findBlocks(...)` is the array API.
- Count item quantities with `bot.inventory.count(mcData.itemsByName.<item>.id)` or summed `item.count`, never with array `.length`.
- Exploration is surface-first here on normal terrain: use `exploreUntil` with y=0 to travel, then mine toward a real block coordinate when one is known. `Vec3(0,-1,0)` and `Vec3(0,1,0)` alone will not find a target.
- The ground is normal overworld terrain, not a flat resource map: ore depth varies with the landscape, so prospect with Nearby blocks and `findBlock` before committing to a shaft instead of assuming every ore sits straight down.
- Write valid JavaScript: declare every variable and function exactly once. Never re-declare a name with `const` or `let` that is already declared in the same program, and never repeat a whole block of code. A duplicate `const X = ...` makes the whole program fail to parse and the task is wasted.
'''
marker = "You should then respond to me with\n"
if creative_facts.strip() not in action_text:
if marker not in action_text:
raise RuntimeError("Voyager action prompt marker changed; refusing unsafe prompt patch")
action_text = action_text.replace(marker, creative_facts + "\n" + marker, 1)
action_prompt.write_text(action_text, encoding="utf-8")
action_agent_path = SRC / "voyager" / "agents" / "action.py"
action_agent_text = action_agent_path.read_text(encoding="utf-8")
action_agent_text = action_agent_text.replace(
''' if not self.llm.model_name == "gpt-3.5-turbo":
base_skills += [
"useChest",
"mineflayer",
]
''',
''' if not self.llm.model_name == "gpt-3.5-turbo":
base_skills += [
"useChest",
"mineflayer",
"creativeGiveItem",
]
''',
)
# Upstream sets no max_tokens. A hard 512-token cap truncated the
# official multi-function Action programs into invalid JavaScript, so
# the cap is raised rather than the contract narrowed. See app.py
# ACTION_MAX_TOKENS.
action_agent_text = action_agent_text.replace(
''' self.llm = ChatOpenAI(
model_name=model_name,
temperature=temperature,
request_timeout=request_timout,
)
''',
''' self.llm = ChatOpenAI(
model_name=model_name,
temperature=temperature,
request_timeout=request_timout,
max_tokens=2048,
)
''',
1,
)
action_agent_text = action_agent_text.replace(
' error = "\\n".join(error_messages)',
' error = "\\n".join(error_messages[-4:])[-1800:]',
)
action_agent_text = action_agent_text.replace(
' chat_log = "\\n".join(chat_messages)',
' chat_log = "\\n".join(chat_messages[-6:])[-1200:]',
)
action_agent_text = action_agent_text.replace(
' observation += f"Context: {context}\\n\\n"',
' observation += f"Context: {context[:1400]}\\n\\n"',
)
action_agent_text = action_agent_text.replace(
' observation += f"Critique: {critique}\\n\\n"',
' observation += f"Critique: {critique[:1200]}\\n\\n"',
)
# Write the patched agent out. Without this line every replace above was
# discarded and the Space silently ran a pristine action.py: the Action
# agent sent no max_tokens, app.py fell back to its 384-token default, the
# answer was cut off mid-function, and every action failed to parse.
action_agent_path.write_text(action_agent_text, encoding="utf-8")
applied = action_agent_path.read_text(encoding="utf-8")
for marker, what in (
('"creativeGiveItem",', "action base skills"),
("max_tokens=2048", "action max_tokens"),
('Code from the last round', "action previous code"),
("error_messages[-4:]", "action error bound"),
("chat_messages[-6:]", "action chat-log bound"),
("{context[:1400]}", "action context bound"),
("{critique[:1200]}", "action critique bound"),
):
if marker not in applied:
raise RuntimeError(
f"Voyager {what} patch did not apply; refusing to run a runtime "
"that the patch layer does not describe"
)
# No local override of get_task_context. Upstream's QA question/answer
# path (curriculum.py:417-434) is the official source of task context
# and is restored below together with the observation QA warm-up.
# Upstream's process_ai_message is the official contract: collect every
# top-level function (helpers included), join all bodies, exec the last
# async one. Replacing it with a single-function template both narrowed
# the contract and let the parser overwrite the model's own code.
# No local override is applied here.
# The observation/truncation bounds below stay: they are a documented
# 8k-context adaptation, not a contract change.
# Bound curriculum memory rendered into every task proposal. The full
# persistent lists remain on disk; only the prompt view is compacted.
curriculum_path = SRC / "voyager" / "agents" / "curriculum.py"
curriculum_text = curriculum_path.read_text(encoding="utf-8")
curriculum_text = curriculum_text.replace(
'", ".join(self.completed_tasks) if self.completed_tasks else "None"',
'task_history(self.completed_tasks) if self.completed_tasks else "None"',
)
curriculum_text = curriculum_text.replace(
'failed_tasks = ", ".join(self.failed_tasks) if self.failed_tasks else "None"',
'failed_tasks = task_history(self.failed_tasks) if self.failed_tasks else "None"',
)
# Upstream's get_task_context (QA question/answer) and
# propose_next_ai_task (free-form "Task:" proposal) are restored
# verbatim. The only local change is the parse-failure retry feedback,
# recorded in .upstream-expected/ and declared in
# voyager_runtime_contract.ADAPTED_METHODS: at temperature 0 upstream
# re-sends an identical prompt, which deterministically reproduces the
# same rejected task.
curriculum_text = curriculum_text.replace(
"from langchain.schema import HumanMessage, SystemMessage",
"from langchain.schema import AIMessage, HumanMessage, SystemMessage",
)
# Apply the declared adaptation to the live file, and publish the same
# text as the attestation reference.
curriculum_text = apply_curriculum_retry_adaptation(curriculum_text)
self._publish_expected_curriculum()
# The remaining upstream curriculum/agent transforms below (AIMessage
# import, nullable numerics, history compaction) are integration fixes.
# They must not alter the attested decision methods.
curriculum_text = curriculum_text.replace(
'from __future__ import annotations',
'from __future__ import annotations\nfrom voyager_verification import task_history',
1,
)
curriculum_path.write_text(curriculum_text, encoding="utf-8")
# The official curriculum prompt is kept as-is. It is the contract that
# lets the model propose any objective, including repeating a task when
# resources require it.
creative_facts = (
"\n\nENVIRONMENT FACTS (do not change the task format above):\n"
"- The bot is in Creative mode on normal overworld terrain with a netherite toolkit "
"already equipped, so survival prerequisites are usually not limiting.\n"
"- Creative mining changes blocks but produces no item drops.\n"
"- The bot has creativeGiveItem(bot, item, count) available as a helper.\n"
"- This is not a flat resource map: ore depth follows the natural landscape, "
"so mining and obtaining tasks must be prospected from Nearby blocks and "
"reachable on foot from the live position.\n"
)
curriculum_prompt = SRC / "voyager" / "prompts" / "curriculum.txt"
curriculum_prompt_text = curriculum_prompt.read_text(encoding="utf-8")
if "ENVIRONMENT FACTS (do not change the task format above)" not in curriculum_prompt_text:
curriculum_prompt.write_text(curriculum_prompt_text + creative_facts, encoding="utf-8")
# A disconnect can yield a final observation with health/food/position
# fields set to null. Upstream formats them with :.1f, which raises
# NoneType.__format__ and triggers Voyager's destructive hard reset.
# Preserve each file's original indentation while normalizing nullable
# numeric fields so this patch is safe across Action/Critic/Curriculum.
for rel in (
"voyager/agents/action.py",
"voyager/agents/critic.py",
"voyager/agents/curriculum.py",
):
agent_path = SRC / rel
agent = agent_path.read_text(encoding="utf-8")
replacements = (
(
r'(?m)^(\s*)health = event\["status"\]\["health"\]\s*$',
r'\1health = event["status"].get("health")\n\1health = float(health) if isinstance(health, (int, float)) else 0.0',
),
(
r'(?m)^(\s*)hunger = event\["status"\]\["food"\]\s*$',
r'\1hunger = event["status"].get("food")\n\1hunger = float(hunger) if isinstance(hunger, (int, float)) else 0.0',
),
(
r'(?m)^(\s*)position = event\["status"\]\["position"\]\s*$',
r'\1position = event["status"].get("position") or {}\n\1position = {axis: (float(position.get(axis)) if isinstance(position.get(axis), (int, float)) else 0.0) for axis in ("x", "y", "z")}',
),
(
r'(?m)^(\s*)health = events\[-1\]\[1\]\["status"\]\["health"\]\s*$',
r'\1health = events[-1][1]["status"].get("health")\n\1health = float(health) if isinstance(health, (int, float)) else 0.0',
),
(
r'(?m)^(\s*)hunger = events\[-1\]\[1\]\["status"\]\["food"\]\s*$',
r'\1hunger = events[-1][1]["status"].get("food")\n\1hunger = float(hunger) if isinstance(hunger, (int, float)) else 0.0',
),
(
r'(?m)^(\s*)position = events\[-1\]\[1\]\["status"\]\["position"\]\s*$',
r'\1position = events[-1][1]["status"].get("position") or {}\n\1position = {axis: (float(position.get(axis)) if isinstance(position.get(axis), (int, float)) else 0.0) for axis in ("x", "y", "z")}',
),
)
for pattern, replacement in replacements:
agent = re.sub(pattern, replacement, agent)
agent_path.write_text(agent, encoding="utf-8")
# A disconnect during /pause used to leave Python blocked indefinitely,
# preventing both recovery and the existing process-exit watchdog.
# EPIPE on the Mineflayer socket must also fail a pending /step and a
# pending /start quickly so the runner can hard-reset instead of
# parking on a dead bridge with position frozen and no new model calls.
bridge_path = SRC / "voyager/env/bridge.py"
bridge_text = bridge_path.read_text(encoding="utf-8")
for endpoint in ("pause", "stop"):
old_post = f'requests.post(f"{{self.server}}/{endpoint}")'
if old_post not in bridge_text:
raise RuntimeError(
f"Voyager bridge /{endpoint} marker changed; refusing silent patch"
)
bridge_text = bridge_text.replace(
old_post,
f'requests.post(f"{{self.server}}/{endpoint}", timeout=10)',
)
# /start drives the 120s Node startup lifecycle; bound it just above at
# 135s so a dead Mineflayer port raises instead of hanging env.reset().
# Upstream already carries timeout=self.request_timeout (600s) here, so
# the old plain-form replace matched nothing and silently did nothing.
start_old = "json=self.reset_options,\n timeout=self.request_timeout,"
if start_old not in bridge_text:
raise RuntimeError("Voyager bridge /start marker changed; refusing silent patch")
bridge_text = bridge_text.replace(
start_old,
"json=self.reset_options,\n timeout=135,",
1,
)
# /step keeps upstream's request deadline so a wedged bridge raises on
# the Python side too; the Node failStep guard answers first (503).
if 'f"{self.server}/step", json=data, timeout=self.request_timeout' not in bridge_text:
raise RuntimeError("Voyager bridge /step lost its deadline; refusing silent boot")
bridge_path.write_text(bridge_text, encoding="utf-8")
# Upstream hard-resets Mineflayer after every Python exception, even if
# the Minecraft connection is healthy. That makes benign formatting or
# model-output errors visible as leave/rejoin loops. Print a full
# traceback, then recover an observation in-place; only fall back to a
# hard reset when the live Mineflayer step itself fails.
voyager_py = SRC / "voyager" / "voyager.py"
voyager_src = voyager_py.read_text(encoding="utf-8")
if "import traceback" not in voyager_src:
voyager_src = voyager_src.replace("import time\n", "import time\nimport traceback\n", 1)
# Upstream calls recorder.record([], task) when an Action response cannot
# be parsed. EventRecorder immediately indexes events[0], so a truncated
# LLM response turns a recoverable parse retry into IndexError. Record
# the last valid observation instead and let Voyager retry the action.
voyager_src = voyager_src.replace(
''' self.recorder.record([], self.task)
print(f"\\033[34m{parsed_result} Trying again!\\033[0m")
''',
''' if self.last_events:
self.recorder.record(self.last_events, self.task)
print(f"\\033[34m{parsed_result} Trying again!\\033[0m")
''',
1,
)
# Upstream calls the Action LLM on every rollout iteration and parses
# its answer with the official process_ai_message. The earlier local
# variant skipped the model entirely on the first iteration of
# Place/Build/Obtain/Equip tasks and substituted a canonical template.
# That removed model code generation from the learning loop, so it is
# removed here. The call site keeps upstream's signature.
old_recovery = ''' except Exception as e:\n time.sleep(3) # wait for mineflayer to exit\n info = {\n "task": task,\n "success": False,\n }\n # reset bot status here\n self.last_events = self.env.reset(\n options={\n "mode": "hard",\n "wait_ticks": self.env_wait_ticks,\n "inventory": self.last_events[-1][1]["inventory"],\n "equipment": self.last_events[-1][1]["status"]["equipment"],\n "position": self.last_events[-1][1]["status"]["position"],\n }\n )\n # use red color background to print the error\n print("Your last round rollout terminated due to error:")\n print(f"\\033[41m{e}\\033[0m")\n'''
new_recovery = ''' except Exception as e:\n info = {\n "task": task,\n "success": False,\n }\n print("Your last round rollout terminated due to error:")\n traceback.print_exc()\n print(f"\\033[41m{type(e).__name__}: {e}\\033[0m")\n try:\n # Preserve the current Mineflayer connection whenever it is\n # still responsive. This prevents needless leave/rejoin.\n self.last_events = self.env.step("")\n print("Recovered Voyager observation without reconnecting Mineflayer")\n except Exception as recovery_error:\n print("Live recovery failed; performing one hard Mineflayer reset")\n traceback.print_exc()\n previous = self.last_events[-1][1] if self.last_events else {}\n status = previous.get("status", {}) if isinstance(previous, dict) else {}\n self.last_events = self.env.reset(\n options={\n "mode": "hard",\n "wait_ticks": self.env_wait_ticks,\n "inventory": previous.get("inventory", {}) if isinstance(previous, dict) else {},\n "equipment": status.get("equipment", []),\n "position": status.get("position", None),\n }\n )\n'''
if old_recovery not in voyager_src:
raise RuntimeError("Voyager upstream exception block changed; refusing unsafe patch")
voyager_src = voyager_src.replace(old_recovery, new_recovery, 1)
voyager_py.write_text(voyager_src, encoding="utf-8")
_log(f"Patched Mineflayer identity, safe observations, full tracebacks, non-destructive recovery, movement guards, and bounded mineBlock targets")
def _ensure_source(self) -> None:
ROOT.mkdir(parents=True, exist_ok=True)
env = os.environ.copy()
env["GIT_LFS_SKIP_SMUDGE"] = "1"
if not (SRC / ".git").exists():
if SRC.exists():
shutil.rmtree(SRC)
_run(["git", "clone", "--filter=blob:none", "--no-checkout", UPSTREAM, str(SRC)], ROOT, env=env)
_run(["git", "fetch", "--depth", "1", "origin", UPSTREAM_COMMIT], SRC, env=env)
_run(["git", "checkout", "--force", UPSTREAM_COMMIT], SRC, env=env)
self._patch_runtime_source()
def _ensure_python_package(self) -> None:
"""Run the README's `pip install -e .` for the pinned Voyager checkout.
--no-deps keeps the Space's own pinned requirements authoritative: the
Space runs langchain and chromadb versions that this Space's build
resolved, and letting pip re-resolve them at boot would silently move
the inference stack underneath a running Space. The distribution is
still installed and verified, which is what the documented install
provides here.
"""
marker = ROOT / ".voyager-installed"
if not marker.exists():
_run(
[sys.executable, "-m", "pip", "install", "-e", ".", "--no-deps", "--no-build-isolation"],
SRC,
)
probe = (
"import importlib.metadata as m;"
"d = m.distribution('voyager');"
"print(d.version)"
)
proc = subprocess.run(
[sys.executable, "-c", probe],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=120,
)
installed = (proc.stdout or "").strip()
if proc.returncode != 0 or not installed:
raise RuntimeError(
f"Voyager editable install is missing after pip install -e .: {installed!r}"
)
# Recorded only once the install is known to be live, so a failed attempt
# is retried instead of being remembered as done.
if not marker.exists():
marker.write_text("ok\n", encoding="utf-8")
_log(f"Voyager package installed: voyager {installed} from {SRC}")
def _terminate_proc(self, proc: subprocess.Popen[str] | None, name: str) -> None:
if proc is None or proc.poll() is not None:
return
try:
proc.terminate()
proc.wait(timeout=15)
except Exception:
try:
proc.kill()
except Exception:
pass
else:
return
try:
proc.wait(timeout=5)
except Exception:
pass
_log(f"{name} stopped")
def _ensure_naldo_brain(self) -> None:
"""Install/pin OpenCode and start loopback-only server + bridge.
Never binds 0.0.0.0, never copies credential files, never requires
OPENCODE_API_KEY. Both children are owned by this stack and stopped
together with Naldo.
"""
if not is_loopback_url(NALDO_OPENCODE_BASE) or not is_loopback_url(NALDO_BRIDGE_BASE):
raise RuntimeError("Naldo brain endpoints must stay loopback-only")
opencode_binary, reported = ensure_opencode_installed()
_log(
f"OpenCode CLI ready: {reported[:80]} local_binary={opencode_binary} "
"(pinned opencode-ai@1.18.33)"
)
support = Path(__file__).resolve().parent
bridge_entry = support / "naldo_opencode_bridge.py"
if not bridge_entry.exists():
raise RuntimeError("Naldo OpenCode bridge entrypoint missing")
self._stop_brain()
opencode_log = ROOT / "opencode.log"
bridge_log = ROOT / "naldo-bridge.log"
opencode_log.write_text("", encoding="utf-8")
bridge_log.write_text("", encoding="utf-8")
# Isolate OpenCode's HOME/XDG dirs in the runtime tree so it cannot
# inherit any account credential/config from the container user.
env = opencode_subprocess_env(os.environ.copy())
env["OPENCODE_BASE"] = NALDO_OPENCODE_BASE
env["NALDO_BRIDGE_BASE"] = NALDO_BRIDGE_BASE
env["OPENCODE_PORT"] = str(NALDO_OPENCODE_PORT)
env["NALDO_BRIDGE_PORT"] = str(NALDO_BRIDGE_PORT)
env["NALDO_EMBED_BASE"] = EMBED_BASE_URL
with opencode_log.open("a", encoding="utf-8", errors="replace") as op_log:
op_log.write(f"cmd: opencode serve --hostname 127.0.0.1 --port {NALDO_OPENCODE_PORT}\n")
op_log.flush()
self.opencode_proc = subprocess.Popen(
opencode_serve_command(opencode_binary, NALDO_OPENCODE_PORT),
cwd=str(ROOT),
env=env,
stdout=op_log,
stderr=subprocess.STDOUT,
text=True,
)
if not _wait_tcp("127.0.0.1", NALDO_OPENCODE_PORT, 120):
raise RuntimeError("OpenCode server did not open 127.0.0.1:{port}".format(port=NALDO_OPENCODE_PORT))
if self.opencode_proc.poll() is not None:
raise RuntimeError(f"OpenCode server exited rc={self.opencode_proc.returncode}")
health = _check_opencode_health(NALDO_OPENCODE_BASE, timeout=10.0)
_log(f"OpenCode health: ok={health.get('ok')} ready={health.get('ready')}")
with bridge_log.open("a", encoding="utf-8", errors="replace") as br_log:
br_log.write(f"cmd: bridge on 127.0.0.1:{NALDO_BRIDGE_PORT} -> {NALDO_OPENCODE_BASE}\n")
br_log.flush()
self.bridge_proc = subprocess.Popen(
[sys.executable, "-u", str(bridge_entry)],
cwd=str(support),
env=env,
stdout=br_log,
stderr=subprocess.STDOUT,
text=True,
)
if not _wait_tcp("127.0.0.1", NALDO_BRIDGE_PORT, 120):
raise RuntimeError("Naldo bridge did not open 127.0.0.1:{port}".format(port=NALDO_BRIDGE_PORT))
if self.bridge_proc.poll() is not None:
raise RuntimeError(f"Naldo bridge exited rc={self.bridge_proc.returncode}")
bridge_health = _check_bridge_health(NALDO_BRIDGE_BASE, timeout=10.0)
_log(f"Naldo bridge health: ok={bridge_health.get('ok')} ready={bridge_health.get('ready')}")
if not bridge_health.get("ready"):
raise RuntimeError("Naldo bridge is not ready for OpenCode inference")
if not _wait_embedding_ready(NALDO_BRIDGE_BASE, timeout=180.0):
raise RuntimeError("Naldo embedding backend did not become ready within 180s")
_log("Naldo embedding probe: ready")
def _brain_healthy(self) -> bool:
opencode_proc, bridge_proc = self._brain_procs()
if not opencode_proc or opencode_proc.poll() is not None:
return False
if not bridge_proc or bridge_proc.poll() is not None:
return False
try:
if not _check_opencode_health(NALDO_OPENCODE_BASE, timeout=3.0).get("ready"):
return False
return bool(_check_bridge_health(NALDO_BRIDGE_BASE, timeout=3.0).get("ready"))
except Exception:
return False
def _stop_brain(self) -> None:
with self.lock:
opencode_proc = self.opencode_proc
bridge_proc = self.bridge_proc
self.opencode_proc = None
self.bridge_proc = None
self._terminate_proc(bridge_proc, "Naldo bridge")
self._terminate_proc(opencode_proc, "OpenCode server")
def brain_status(self) -> dict[str, Any]:
opencode_proc, bridge_proc = self._brain_procs()
opencode = _check_opencode_health(NALDO_OPENCODE_BASE, timeout=2.0)
bridge = _check_bridge_health(NALDO_BRIDGE_BASE, timeout=2.0)
# Never expose env values beyond loopback base URLs; no credentials
# are stored here at all.
return {
"provider": "opencode",
"profile": NALDO_BRAIN_PROFILE,
"primary_model": NALDO_PRIMARY_MODEL,
"fallback_models": list(ALLOWED_MODELS),
"opencode_base": NALDO_OPENCODE_BASE,
"bridge_base": NALDO_BRIDGE_BASE,
"loopback_only": bool(is_loopback_url(NALDO_OPENCODE_BASE) and is_loopback_url(NALDO_BRIDGE_BASE)),
"opencode_running": bool(opencode_proc and opencode_proc.poll() is None),
"opencode_pid": opencode_proc.pid if opencode_proc and opencode_proc.poll() is None else None,
"opencode": opencode,
"bridge_running": bool(bridge_proc and bridge_proc.poll() is None),
"bridge_pid": bridge_proc.pid if bridge_proc and bridge_proc.poll() is None else None,
"bridge": bridge,
"temperature_note": "session API has no temperature field; requested value recorded only",
}
def _pin_node_versions(self) -> None:
root_pkg = SRC / "voyager" / "env" / "mineflayer" / "package.json"
data = json.loads(root_pkg.read_text(encoding="utf-8"))
pinned = {
# Freeze Voyager's own 2023-era dependency line instead of mixing
# it with later protocol packages. The upstream commit is tested
# against Minecraft/Fabric 1.19 and starts from Mineflayer 4.8.1.
"body-parser": "1.20.2", "express": "4.18.2", "magic-string": "0.30.0",
"minecraft-data": "3.31.0", "minecrafthawkeye": "1.3.6", "mineflayer": "4.8.1",
"mineflayer-pathfinder": "2.4.2", "mineflayer-pvp": "1.3.2", "mineflayer-tool": "1.2.0",
"mocha": "10.2.0", "prismarine-biome": "1.3.0", "prismarine-block": "1.16.3",
"prismarine-entity": "2.2.0", "prismarine-item": "1.12.1", "prismarine-nbt": "2.2.1",
"prismarine-recipe": "1.3.1", "prismarine-viewer": "1.24.0", "typescript": "4.9.5",
"vec3": "0.1.8", "graceful-fs": "4.2.11",
}
for section in ("dependencies", "devDependencies"):
for key in list(data.get(section, {})):
if key in pinned:
data[section][key] = pinned[key]
data["dependencies"]["mineflayer-collectblock"] = "file:mineflayer-collectblock"
data["overrides"] = {
# Keep transitive protocol readers on the same generation as
# Mineflayer 4.8.1 / Voyager's Minecraft 1.19 setup.
"mineflayer": "4.8.1",
"minecraft-protocol": "1.41.2",
"protodef": "1.15.0",
"minecraft-data": "3.31.0",
"prismarine-block": "1.16.3",
"prismarine-nbt": "2.2.1",
"prismarine-chat": "1.7.1",
"prismarine-item": "1.12.1",
"prismarine-biome": "1.3.0",
"prismarine-chunk": "1.32.0",
"prismarine-world": "3.6.0",
"prismarine-entity": "2.2.0",
"prismarine-recipe": "1.3.1",
"prismarine-physics": "1.6.0",
"prismarine-windows": "2.5.0",
"prismarine-registry": "1.5.0",
"mineflayer-pathfinder": "2.4.2",
"mineflayer-pvp": "1.3.2",
"mineflayer-tool": "1.2.0",
}
root_pkg.write_text(json.dumps(data, indent=2) + "\n", encoding="utf-8")
cb_pkg = SRC / "voyager" / "env" / "mineflayer" / "mineflayer-collectblock" / "package.json"
cb = json.loads(cb_pkg.read_text(encoding="utf-8"))
cb["dependencies"].update({
"mineflayer": "4.8.1",
"mineflayer-pathfinder": "2.4.2",
"mineflayer-tool": "1.2.0",
})
cb["devDependencies"].update({
"@types/node": "18.6.4",
"require-self": "0.2.3",
"ts-standard": "11.0.0",
"typescript": "4.9.5",
})
cb["overrides"] = dict(data["overrides"])
cb_pkg.write_text(json.dumps(cb, indent=2) + "\n", encoding="utf-8")
# The vendored collectblock source predates stricter TS indexing rules.
# Keep its behavior, but make the two tool lookups type-safe so the
# official local plugin can still be compiled deterministically.
cb_source = cb_pkg.parent / "src" / "CollectBlock.ts"
cb_text = cb_source.read_text(encoding="utf-8")
cb_text = cb_text.replace(
''' const properties =
bot.registry.blocksByName[closest.name];
const leastTool = Object.keys(
properties.harvestTools
)[0];
const item = bot.registry.items[leastTool];
bot.chat(
`I need at least a ${item.name} to mine ${closest.name}! Skip it!`
);
''',
''' const blockName = closest.name;
if (!blockName) return;
const properties =
bot.registry.blocksByName[blockName];
const harvestTools = properties.harvestTools || {};
const leastTool = Number(Object.keys(harvestTools)[0]);
const item = bot.registry.items[leastTool];
bot.chat(
`I need at least a ${item?.name || "valid tool"} to mine ${blockName}! Skip it!`
);
''',
)
cb_text = cb_text.replace("// @ts-expect-error", "// @ts-ignore")
cb_source.write_text(cb_text, encoding="utf-8")
for lock in (root_pkg.parent / "package-lock.json", cb_pkg.parent / "package-lock.json"):
lock.unlink(missing_ok=True)
_log("Pinned Voyager/Mineflayer dependency tree to 2023-compatible versions")
def _verify_node_versions(self, mineflayer: Path) -> None:
expected = {
"mineflayer": "4.8.1",
"minecraft-protocol": "1.41.2",
"protodef": "1.15.0",
"minecraft-data": "3.31.0",
"prismarine-block": "1.16.3",
"prismarine-nbt": "2.2.1",
"prismarine-chat": "1.7.1",
"prismarine-item": "1.12.1",
"prismarine-biome": "1.3.0",
"prismarine-chunk": "1.32.0",
"prismarine-world": "3.6.0",
"prismarine-entity": "2.2.0",
"prismarine-recipe": "1.3.1",
"prismarine-physics": "1.6.0",
"prismarine-windows": "2.5.0",
"prismarine-registry": "1.5.0",
}
installed: dict[str, str] = {}
for package, wanted in expected.items():
package_json = mineflayer / "node_modules" / package / "package.json"
if not package_json.exists():
raise RuntimeError(f"Missing pinned Node package: {package}")
actual = str(json.loads(package_json.read_text(encoding="utf-8")).get("version", ""))
installed[package] = actual
if actual != wanted:
raise RuntimeError(f"Node dependency drift: {package} expected {wanted}, got {actual}")
_log("Verified Voyager protocol tree: " + ", ".join(f"{k}={v}" for k, v in installed.items()))
def _verify_babel(self, babel: Path) -> None:
"""Fail the boot unless Babel is 7.x and parse() stays synchronous."""
installed = {}
for package in ("@babel/core", "@babel/generator"):
package_json = babel / "node_modules" / package / "package.json"
if not package_json.exists():
raise RuntimeError(f"Missing pinned Babel package: {package}")
version = str(json.loads(package_json.read_text(encoding="utf-8")).get("version", ""))
installed[package] = version
if not version.startswith("7."):
raise RuntimeError(
f"Babel {package} must stay on 7.x because upstream calls babel.parse() "
f"synchronously; got {version}"
)
# Prove the actual contract the Action agent depends on, in the same Node
# runtime that will run it, rather than trusting the version string.
probe = (
"const babel = require('@babel/core');"
"const parsed = babel.parse('async function f(){return 1}');"
"if (!parsed || !parsed.program) { throw new Error('babel.parse did not return an AST'); }"
"console.log('sync-ok');"
)
proc = subprocess.run(
["node", "-e", probe],
env={**os.environ, "NODE_PATH": str(babel / "node_modules")},
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=120,
)
output = (proc.stdout or "").strip()
if proc.returncode != 0 or "sync-ok" not in output:
raise RuntimeError(
f"babel.parse() is not synchronous in this Node runtime; upstream's "
f"process_ai_message would fail on every action: {output[-400:]}"
)
_log("Verified synchronous Babel parse: " + ", ".join(f"{k}={v}" for k, v in installed.items()))
def _pin_javascript_babel(self) -> None:
"""Force the `javascript` library's lazily-installed Babel to synchronous 7.x.
Upstream's process_ai_message calls babel.parse(code) synchronously.
The javascript package resolves require("@babel/core") through JSPyBridge,
which lazily runs `npm install @babel/core@npm:latest` into
javascript/js/node_modules and records the result in javascript/js/package.json.
"latest" is now Babel 8, where parse() is callback-only, so every action
fails. Pin the version JSPyBridge will see before it installs anything, and
install it here, so the resolved copy is the last Babel 7 line.
"""
try:
import javascript # noqa: PLC0415
except Exception as exc: # pragma: no cover - javascript is a hard dep
raise RuntimeError(f"the javascript package is required by upstream: {exc}")
js_dir = Path(javascript.__file__).resolve().parent / "js"
js_dir.mkdir(parents=True, exist_ok=True)
node_modules = js_dir / "node_modules"
# deps.js reads this file to decide what is already installed. Recording the
# pinned version here stops it from resolving "latest" to Babel 8 later.
package_path = js_dir / "package.json"
data = {"name": "js-modules", "private": True, "dependencies": {}}
if package_path.exists():
try:
data = json.loads(package_path.read_text(encoding="utf-8"))
except ValueError:
data = {"name": "js-modules", "private": True, "dependencies": {}}
data.setdefault("name", "js-modules")
data["private"] = True
data["dependencies"] = {**data.get("dependencies", {}), **BABEL_PINS}
package_path.write_text(json.dumps(data, indent="\t") + "\n", encoding="utf-8")
# Install the pinned packages into exactly the tree JSPyBridge resolves from.
_run(
[
"npm", "install", "--no-audit", "--no-fund",
"--prefix", str(js_dir),
"@babel/core@7.26.9", "@babel/generator@7.26.9",
],
ROOT,
)
# Verify the copy that bridge.js will actually require is 7.x.
for package in ("@babel/core", "@babel/generator"):
package_json = node_modules / package / "package.json"
if not package_json.exists():
raise RuntimeError(f"missing pinned Babel package after override: {package}")
version = str(json.loads(package_json.read_text(encoding="utf-8")).get("version", ""))
if not version.startswith("7."):
raise RuntimeError(
f"the javascript package still resolves Babel {package} {version}; "
"upstream's babel.parse() needs the synchronous 7.x line"
)
_log(f"Pinned javascript's resolved Babel to 7.x under {node_modules}")
def _ensure_node(self) -> str:
mineflayer = SRC / "voyager" / "env" / "mineflayer"
marker = ROOT / ".node-ready"
if not marker.exists():
self._pin_node_versions()
collectblock = mineflayer / "mineflayer-collectblock"
_run(["npm", "install", "--no-audit", "--no-fund"], collectblock)
_run(["node", str(collectblock / "node_modules" / "typescript" / "bin" / "tsc")], collectblock)
_run(["npm", "install", "--no-audit", "--no-fund"], mineflayer)
self._verify_node_versions(mineflayer)
babel = ROOT / "babel"
babel.mkdir(parents=True, exist_ok=True)
# Upstream's process_ai_message calls babel.parse(code)
# synchronously. Babel 8 made parse() callback-only, so an unpinned
# install that lands on 8 makes every action fail to parse. Pin the
# last Babel 7 releases, which keep parse() synchronous.
_run(
[
"npm", "install", "--no-audit", "--no-fund",
"--prefix", str(babel),
"@babel/core@7.26.9", "@babel/generator@7.26.9",
],
ROOT,
)
self._verify_babel(babel)
self._pin_javascript_babel()
marker.write_text("ok\n", encoding="utf-8")
paths = [
str(ROOT / "babel" / "node_modules"),
str(mineflayer / "node_modules"),
]
return os.pathsep.join(paths)
def _pump(self, proc: subprocess.Popen[str]) -> None:
assert proc.stdout is not None
with LOG_PATH.open("a", encoding="utf-8", errors="replace") as fh:
for line in proc.stdout:
fh.write(line)
fh.flush()
print("[voyager] " + line.rstrip(), flush=True)
def _boot(self) -> None:
with self.lock:
self.state = "waiting-minecraft"
self.error = ""
self.started_at = time.time()
try:
if not _wait_tcp("127.0.0.1", 25565, 180):
raise RuntimeError("Minecraft server did not open 127.0.0.1:25565")
ready_file = Path(os.environ.get("MINECRAFT_READY_FILE", "/tmp/minecraft-stack/minecraft.ready"))
deadline = time.time() + 180
while time.time() < deadline and not ready_file.exists():
time.sleep(1)
if not ready_file.exists():
raise RuntimeError("Minecraft port opened but world readiness marker was not created")
with self.lock:
self.state = "preparing"
python_version = _require_python_version()
node_version = _require_node_version()
_log(f"Runtime versions: python {python_version}, node {node_version}")
self._ensure_source()
self._ensure_python_package()
node_path = self._ensure_node()
CKPT_DIR.mkdir(parents=True, exist_ok=True)
# Fresh map, fresh tasks: the checkpoint starts empty (resume=False).
# Nothing is ever seeded or copied from the old checkpoint.
_log(f"Checkpoint starts fresh: {_is_fresh_checkpoint(CKPT_DIR)}")
# Naldo's generative brain is OpenCode only. Start the loopback
# server + bridge BEFORE the Voyager child; the child must never
# fall back to Granite.
self._ensure_naldo_brain()
env = os.environ.copy()
env.update(
{
"VOYAGER_HOME": str(SRC),
"VOYAGER_ATTESTATION_FILE": str(ROOT / "engine-attestation.json"),
"VOYAGER_OPENAI_BASE": NALDO_BRIDGE_BASE,
"VOYAGER_BRAIN_PROFILE": NALDO_BRAIN_PROFILE,
"VOYAGER_API_KEY": "local-voyager",
"VOYAGER_MODEL": NALDO_PRIMARY_MODEL,
"VOYAGER_AUX_MODEL": NALDO_PRIMARY_MODEL,
"VOYAGER_CKPT_DIR": str(CKPT_DIR),
"MC_USERNAME": BOT_USERNAME,
"BOT_DISPLAY_NAME": BOT_DISPLAY_NAME,
"MC_PORT": "25565",
"MINEFLAYER_API_PORT": "3000",
"MAX_ITERATIONS": os.environ.get("MAX_ITERATIONS", "1000000"),
"OPENAI_API_REQUEST_TIMEOUT": "240",
"ANONYMIZED_TELEMETRY": "False",
"NODE_PATH": node_path,
"PYTHONPATH": str(SRC),
}
)
LOG_PATH.write_text("", encoding="utf-8")
runner = Path(__file__).resolve().parent / "voyager_runner.py"
backoff = 5
while not self.stop_event.is_set():
if not self._brain_healthy():
self.restart_count += 1
with self.lock:
self.state = "restarting"
self.error = (
f"OpenCode bridge unavailable; Naldo held without Granite fallback "
f"(restart #{self.restart_count})"
)
_terminate_naldo_child(self)
_log("Naldo brain unhealthy; restarting OpenCode server + bridge before Naldo")
if self.stop_event.wait(backoff):
break
try:
self._ensure_naldo_brain()
except Exception as exc:
_log(f"Naldo brain restart failed: {exc!r}")
backoff = restart_backoff_after(backoff, 0.0)
continue
run_started = time.monotonic()
self.proc = subprocess.Popen(
[sys.executable, "-u", str(runner)],
cwd=str(SRC),
env=env,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
bufsize=1,
)
threading.Thread(target=self._pump, args=(self.proc,), daemon=True, name="voyager-log").start()
time.sleep(5)
if self.proc.poll() is None:
if not self._brain_healthy():
_log("Naldo started but brain died during boot; stopping child without Granite fallback")
_terminate_naldo_child(self)
rc = -1
else:
with self.lock:
self.state = "running"
self.error = ""
_log(f"Voyager running pid={self.proc.pid} as {BOT_USERNAME} via {NALDO_BRIDGE_BASE}")
# Do not block forever in wait(): actively verify the
# OpenCode server + bridge while Naldo is alive.
while self.proc.poll() is None and not self.stop_event.is_set():
if self.stop_event.wait(7):
break
if not self._brain_healthy():
_log("OpenCode/bridge died mid-run; stopping Naldo immediately")
_terminate_naldo_child(self)
break
if self.stop_event.is_set():
_terminate_naldo_child(self)
rc = self.proc.poll()
if rc is None:
try:
rc = self.proc.wait(timeout=2)
except Exception:
rc = -1
else:
rc = self.proc.returncode
if self.stop_event.is_set():
break
# If the brain died mid-run, recycle it first; never let Naldo
# keep calling a dead bridge or silently use another backend.
if not self._brain_healthy():
_log("OpenCode/bridge died mid-run; recycling brain before Naldo restart")
try:
self._ensure_naldo_brain()
except Exception as exc:
_log(f"Naldo brain recycle failed: {exc!r}")
self.restart_count += 1
with self.lock:
self.state = "restarting"
self.error = f"Voyager exited rc={rc}; automatic restart #{self.restart_count}"
_log(f"Voyager exited rc={rc}; restarting in {backoff}s (attempt {self.restart_count})")
if self.stop_event.wait(backoff):
break
backoff = restart_backoff_after(backoff, time.monotonic() - run_started)
with self.lock:
if self.stop_event.is_set():
self.state = "stopped"
except Exception as exc:
with self.lock:
self.state = "error"
self.error = repr(exc)
_log(f"VOYAGER ERROR: {exc!r}")
finally:
_terminate_naldo_child(self)
self._stop_brain()
def start_async(self) -> dict[str, Any]:
with self.lock:
self.stop_event.clear()
if self.proc and self.proc.poll() is None:
return self.status()
if self.worker and self.worker.is_alive():
return self.status()
self.worker = threading.Thread(target=self._boot, daemon=True, name="voyager-bootstrap")
self.worker.start()
return self.status()
def stop(self) -> dict[str, Any]:
self.stop_event.set()
with self.lock:
self.state = "stopped"
# Stop Naldo first, then bridge + OpenCode, so no inference can race
# a half-dead brain or fall back to another backend.
_terminate_naldo_child(self)
self._stop_brain()
return self.status()
def tail(self, lines: int = 160) -> str:
chunks: list[str] = []
for path in (SETUP_LOG, LOG_PATH):
if path.exists():
chunks.extend(tail_lines(path, lines))
return "\n".join(chunks[-lines:])
def _mineflayer_status(self) -> dict[str, Any]:
try:
with urllib.request.urlopen("http://127.0.0.1:3000/health", timeout=1.5) as response:
data = json.loads(response.read().decode("utf-8"))
return data if isinstance(data, dict) else {"ready": False}
except Exception:
return {"ready": False}
def status(self) -> dict[str, Any]:
mineflayer = self._mineflayer_status()
lines = tail_lines(LOG_PATH)
try:
completed = json.loads((CKPT_DIR / "curriculum" / "completed_tasks.json").read_text(encoding="utf-8"))
failed = json.loads((CKPT_DIR / "curriculum" / "failed_tasks.json").read_text(encoding="utf-8"))
except (OSError, ValueError):
completed, failed = [], []
learning = read_learning_state(CKPT_DIR)
# The Action agent is the only role whose output has to be executable
# JavaScript, so a parse failure is the single most expensive silent
# failure in the loop. Surface the reason and the completion size that
# produced it: a completion pinned at the token cap means the program was
# cut off mid-function rather than written wrong.
parse_errors = [
line.strip() for line in lines
if "Error parsing action response (before program execution)" in line
]
completion_tokens = []
for line in lines:
if "[llm_metric]" not in line:
continue
try:
record = json.loads(line.split("[llm_metric]", 1)[1])
except ValueError:
continue
if record.get("role") == "action" and record.get("completion_tokens"):
completion_tokens.append(record["completion_tokens"])
activity = {
"completed_count": len(completed),
"failed_count": len(failed),
"recent_completed": completed[-5:],
"recent_failed": failed[-8:],
"curriculum_retry_exhausted": sum("Max retries reached, failed to propose ai task" in line for line in lines),
"action_parse_errors": len(parse_errors),
# The exception type and message lead the message; the Node stack
# trace at the tail says nothing about what actually went wrong.
"last_action_parse_error": (
parse_errors[-1].split("(before program execution):", 1)[-1][:500]
if parse_errors else None
),
"action_completion_tokens": completion_tokens[-8:],
"curriculum_parse_errors": sum("Error parsing curriculum" in line for line in lines),
"action_model_messages": sum("****Action Agent ai message****" in line for line in lines),
"curriculum_model_messages": sum("****Curriculum Agent ai message****" in line for line in lines),
"partial_read_errors": sum("PartialReadError" in line for line in lines),
"file_not_found_errors": sum("FileNotFoundError" in line for line in lines),
"index_errors": sum("IndexError" in line for line in lines),
"syntax_errors": sum("SyntaxError" in line for line in lines),
}
with self.lock:
proc = self.proc
state_name = self.state
error = self.error or None
started_at = self.started_at
restart_count = self.restart_count
# brain_status performs local HTTP probes; never hold the lifecycle
# lock across those timeouts, otherwise stop/start can stall.
brain = self.brain_status()
running = bool(proc and proc.poll() is None)
pid = proc.pid if running else None
return {
"state": state_name,
"error": error,
"started_at": started_at,
"pid": pid,
"running": running,
"upstream_commit": UPSTREAM_COMMIT,
"engine_runtime": read_attestation(ROOT / "engine-attestation.json", pid),
"minecraft": "127.0.0.1:25565",
"openai_base": NALDO_BRIDGE_BASE,
"model": NALDO_PRIMARY_MODEL,
"aux_model": NALDO_PRIMARY_MODEL,
"agent_routing": {"action": "opencode-muse-spark", "curriculum": "opencode-muse-spark", "critic": "opencode-muse-spark", "qa": "opencode-muse-spark", "skill_manager": "opencode-muse-spark"},
"decision_brain": "opencode-only",
"brain_profile": NALDO_BRAIN_PROFILE,
"brain": brain,
"embedding_backend": EMBED_BASE_URL,
"bot_username": BOT_USERNAME,
"bot_display_name": BOT_DISPLAY_NAME,
"checkpoint_dir": str(CKPT_DIR),
"checkpoint_persistent": str(CKPT_DIR).startswith("/persist/"),
"learning": learning,
"activity": activity,
"restart_count": restart_count,
"mineflayer": mineflayer,
"log_tail": self.tail(120),
}
VOYAGER = VoyagerStack()
|