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820 lines (722 loc) · 23.6 KB
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#!/usr/bin/env node
'use strict';
const fs = require('fs');
const os = require('os');
const path = require('path');
const crypto = require('crypto');
const DEFAULT_BASH_TIMEOUT_SECONDS = 30 * 60;
const DEFAULT_LIMIT = 10;
const DEFAULT_WAKE_GRACE_MULTIPLIER = 2;
const DEFAULT_WATCH_INTERVAL_SECONDS = 5;
function usage() {
console.log([
'Usage:',
' node scripts/loop-status.js [--json] [--home <dir>] [--limit <n>] [--watch]',
' node scripts/loop-status.js --transcript <session.jsonl> [--json] [--watch]',
'',
'Options:',
' --json Emit machine-readable status JSON',
' --home <dir> Override the home directory to scan',
' --transcript <session.jsonl> Inspect one transcript directly',
' --limit <n> Maximum recent transcripts to inspect (default: 10)',
' --bash-timeout-seconds <n> Age before a pending Bash call is stale (default: 1800)',
' --wake-grace-multiplier <n> ScheduleWakeup grace multiplier (default: 2)',
' --now <time> Override current time (ISO, epoch ms, or "now")',
' --exit-code Exit 2 on attention signals, 1 on scan errors',
' --watch Refresh status until interrupted',
' --watch-count <n> Stop after n watch refreshes',
' --watch-interval-seconds <n> Seconds between watch refreshes (default: 5)',
' --write-dir <dir> Write index.json and per-session status snapshots',
'',
'Examples:',
' node scripts/loop-status.js --json',
' node scripts/loop-status.js --transcript ~/.claude/projects/-repo/session.jsonl'
].join('\n'));
}
function readValue(args, index, flagName) {
const value = args[index + 1];
if (!value || value.startsWith('--')) {
throw new Error(`${flagName} requires a value`);
}
return value;
}
function readPositiveNumber(value, flagName) {
const number = Number(value);
if (!Number.isFinite(number) || number <= 0) {
throw new Error(`${flagName} must be a positive number`);
}
return number;
}
function readPositiveInteger(value, flagName) {
const number = readPositiveNumber(value, flagName);
if (!Number.isInteger(number)) {
throw new Error(`${flagName} must be a positive integer`);
}
return number;
}
function parseArgs(argv) {
const args = argv.slice(2);
const options = {
bashTimeoutSeconds: DEFAULT_BASH_TIMEOUT_SECONDS,
exitCode: false,
home: null,
json: false,
limit: DEFAULT_LIMIT,
now: null,
showHelp: false,
transcriptPaths: [],
watch: false,
watchCount: null,
wakeGraceMultiplier: DEFAULT_WAKE_GRACE_MULTIPLIER,
watchIntervalSeconds: DEFAULT_WATCH_INTERVAL_SECONDS,
writeDir: null,
};
for (let index = 0; index < args.length; index += 1) {
const arg = args[index];
if (arg === '--help' || arg === '-h') {
options.showHelp = true;
} else if (arg === '--json') {
options.json = true;
} else if (arg === '--home') {
options.home = readValue(args, index, arg);
index += 1;
} else if (arg === '--transcript') {
options.transcriptPaths.push(readValue(args, index, arg));
index += 1;
} else if (arg === '--limit') {
options.limit = readPositiveInteger(readValue(args, index, arg), arg);
index += 1;
} else if (arg === '--bash-timeout-seconds') {
options.bashTimeoutSeconds = readPositiveNumber(readValue(args, index, arg), arg);
index += 1;
} else if (arg === '--wake-grace-multiplier') {
options.wakeGraceMultiplier = readPositiveNumber(readValue(args, index, arg), arg);
index += 1;
} else if (arg === '--now') {
options.now = readValue(args, index, arg);
index += 1;
} else if (arg === '--exit-code') {
options.exitCode = true;
} else if (arg === '--watch') {
options.watch = true;
} else if (arg === '--watch-count') {
options.watchCount = readPositiveInteger(readValue(args, index, arg), arg);
index += 1;
} else if (arg === '--watch-interval-seconds') {
options.watchIntervalSeconds = readPositiveNumber(readValue(args, index, arg), arg);
index += 1;
} else if (arg === '--write-dir') {
options.writeDir = readValue(args, index, arg);
index += 1;
} else {
throw new Error(`Unknown option: ${arg}`);
}
}
if (options.exitCode && options.watch && options.watchCount === null) {
throw new Error('--exit-code with --watch requires --watch-count so the process can exit');
}
return options;
}
function normalizeOptions(options = {}) {
return {
...options,
bashTimeoutSeconds: options.bashTimeoutSeconds ?? DEFAULT_BASH_TIMEOUT_SECONDS,
exitCode: Boolean(options.exitCode),
limit: options.limit ?? DEFAULT_LIMIT,
transcriptPaths: options.transcriptPaths || [],
watch: Boolean(options.watch),
watchCount: options.watchCount ?? null,
wakeGraceMultiplier: options.wakeGraceMultiplier ?? DEFAULT_WAKE_GRACE_MULTIPLIER,
watchIntervalSeconds: options.watchIntervalSeconds ?? DEFAULT_WATCH_INTERVAL_SECONDS,
writeDir: options.writeDir || null,
};
}
function getHomeDir(options = {}) {
if (options.home) {
return path.resolve(options.home);
}
return process.env.HOME || process.env.USERPROFILE || os.homedir();
}
function getNow(options = {}) {
if (!options.now) {
return new Date();
}
if (options.now === 'now') {
return new Date();
}
const now = /^\d+$/.test(String(options.now))
? new Date(Number(options.now))
: new Date(options.now);
if (Number.isNaN(now.getTime())) {
throw new Error('--now must be a valid timestamp');
}
return now;
}
function walkJsonlFiles(dir, result = { errors: [], files: [] }) {
if (!fs.existsSync(dir)) {
return result;
}
let entries;
try {
entries = fs.readdirSync(dir, { withFileTypes: true });
} catch (error) {
result.errors.push({
code: error.code || null,
message: error.message,
transcriptPath: dir,
});
return result;
}
for (const entry of entries) {
const fullPath = path.join(dir, entry.name);
if (entry.isDirectory()) {
walkJsonlFiles(fullPath, result);
} else if (entry.isFile() && entry.name.endsWith('.jsonl')) {
result.files.push(fullPath);
}
}
return result;
}
function findTranscriptPaths(options = {}) {
const normalizedOptions = normalizeOptions(options);
if (options.transcriptPaths && options.transcriptPaths.length > 0) {
return {
errors: [],
transcriptPaths: normalizedOptions.transcriptPaths.map(transcriptPath => path.resolve(transcriptPath)),
};
}
const homeDir = getHomeDir(normalizedOptions);
const transcriptRoot = path.join(homeDir, '.claude', 'projects');
const walkResult = walkJsonlFiles(transcriptRoot);
const errors = [...walkResult.errors];
const transcriptEntries = [];
for (const transcriptPath of walkResult.files) {
try {
transcriptEntries.push({
transcriptPath,
mtimeMs: fs.statSync(transcriptPath).mtimeMs,
});
} catch (error) {
errors.push({
code: error.code || null,
message: error.message,
transcriptPath,
});
}
}
return {
errors,
transcriptPaths: transcriptEntries
.sort((left, right) => right.mtimeMs - left.mtimeMs)
.slice(0, normalizedOptions.limit)
.map(entry => entry.transcriptPath),
};
}
function parseTimestamp(value) {
if (typeof value !== 'string' && typeof value !== 'number') {
return null;
}
const date = new Date(value);
if (Number.isNaN(date.getTime())) {
return null;
}
return date;
}
function getEntryTimestamp(entry) {
return parseTimestamp(entry.timestamp)
|| parseTimestamp(entry.createdAt)
|| parseTimestamp(entry.created_at)
|| parseTimestamp(entry.message && entry.message.timestamp);
}
function getSessionId(entry, transcriptPath) {
return entry.sessionId
|| entry.session_id
|| (entry.session && entry.session.id)
|| (entry.message && entry.message.sessionId)
|| path.basename(transcriptPath, '.jsonl');
}
function getContentBlocks(entry) {
const blocks = [];
if (entry.message && Array.isArray(entry.message.content)) {
blocks.push(...entry.message.content);
}
if (Array.isArray(entry.content)) {
blocks.push(...entry.content);
}
return blocks;
}
function extractToolUses(entry) {
const uses = [];
for (const block of getContentBlocks(entry)) {
if (block && block.type === 'tool_use' && block.id) {
uses.push({
id: block.id,
input: block.input || {},
name: block.name || 'unknown',
});
}
}
const topLevelUse = entry.tool_use || entry.toolUse;
if (topLevelUse && topLevelUse.id) {
uses.push({
id: topLevelUse.id,
input: topLevelUse.input || {},
name: topLevelUse.name || 'unknown',
});
}
if (entry.type === 'tool_use' && entry.id) {
uses.push({
id: entry.id,
input: entry.input || {},
name: entry.name || 'unknown',
});
}
return uses;
}
function extractToolResultIds(entry) {
const resultIds = [];
for (const block of getContentBlocks(entry)) {
if (block && block.type === 'tool_result') {
const toolUseId = block.tool_use_id || block.toolUseId || block.id;
if (toolUseId) {
resultIds.push(toolUseId);
}
}
}
const topLevelResult = entry.tool_result || entry.toolResult || entry.toolUseResult;
if (topLevelResult) {
if (toolUseId) {
resultIds.push(toolUseId);
}
}
if (entry.type === 'tool_result') {
const toolUseId = entry.tool_use_id || entry.toolUseId || entry.id;
if (toolUseId) {
resultIds.push(toolUseId);
}
}
return resultIds;
}
function isAssistantProgressEntry(entry) {
return entry.type === 'assistant'
|| (entry.message && entry.message.role === 'assistant')
|| extractToolUses(entry).length > 0;
}
function readJsonlEntries(transcriptPath) {
const raw = fs.readFileSync(transcriptPath, 'utf8');
const entries = [];
let parseErrors = 0;
for (const line of raw.split(/\r?\n/)) {
if (!line.trim()) {
continue;
}
try {
entries.push(JSON.parse(line));
} catch (_error) {
parseErrors += 1;
}
}
return { entries, parseErrors };
}
function readDelaySeconds(input) {
const delay = input && (
input.delaySeconds
|| input.delay_seconds
|| input.seconds
|| input.delay
);
const number = Number(delay);
if (!Number.isFinite(number) || number <= 0) {
return null;
}
return number;
}
function toIso(date) {
return date ? date.toISOString() : null;
}
function buildRecommendation(signals) {
if (signals.some(signal => signal.type === 'pending_bash_tool_result')) {
return 'Open the transcript or interrupt the parked session; the Bash result appears stale.';
}
if (signals.some(signal => signal.type === 'schedule_wakeup_overdue')) {
return 'Open the transcript or interrupt the parked session; the scheduled wake is overdue.';
}
if (signals.some(signal => signal.type === 'transcript_parse_errors')) {
return 'Inspect the transcript; some JSONL lines could not be parsed.';
}
return 'No stale ScheduleWakeup or Bash waits detected.';
}
function analyzeTranscript(transcriptPath, options = {}) {
const normalizedOptions = normalizeOptions(options);
const absoluteTranscriptPath = path.resolve(transcriptPath);
const now = normalizedOptions.nowDate || getNow(normalizedOptions);
const nowMs = now.getTime();
const { entries, parseErrors } = readJsonlEntries(absoluteTranscriptPath);
const pendingTools = new Map();
let latestAssistantProgressAt = null;
let lastEventAt = null;
let latestWake = null;
let sessionId = path.basename(absoluteTranscriptPath, '.jsonl');
for (const entry of entries) {
sessionId = getSessionId(entry, absoluteTranscriptPath) || sessionId;
const timestamp = getEntryTimestamp(entry);
if (timestamp && (!lastEventAt || timestamp.getTime() > lastEventAt.getTime())) {
lastEventAt = timestamp;
}
if (
timestamp
&& isAssistantProgressEntry(entry)
&& (!latestAssistantProgressAt || timestamp.getTime() > latestAssistantProgressAt.getTime())
) {
latestAssistantProgressAt = timestamp;
}
for (const toolUse of extractToolUses(entry)) {
const startedAt = timestamp || lastEventAt;
pendingTools.set(toolUse.id, {
command: toolUse.input && toolUse.input.command ? String(toolUse.input.command) : null,
input: toolUse.input || {},
name: toolUse.name,
startedAt: toIso(startedAt),
toolUseId: toolUse.id,
});
if (toolUse.name === 'ScheduleWakeup') {
const delaySeconds = readDelaySeconds(toolUse.input);
if (delaySeconds && startedAt) {
const dueAt = new Date(startedAt.getTime() + delaySeconds * 1000);
latestWake = {
delaySeconds,
dueAt: dueAt.toISOString(),
reason: toolUse.input && toolUse.input.reason ? String(toolUse.input.reason) : null,
scheduledAt: startedAt.toISOString(),
toolUseId: toolUse.id,
};
}
}
}
for (const toolUseId of extractToolResultIds(entry)) {
pendingTools.delete(toolUseId);
}
}
const pendingToolList = Array.from(pendingTools.values()).map(tool => {
const startedAt = parseTimestamp(tool.startedAt);
return {
...tool,
ageSeconds: startedAt ? Math.max(0, Math.floor((nowMs - startedAt.getTime()) / 1000)) : null,
};
});
const signals = [];
if (latestWake) {
const scheduledAt = parseTimestamp(latestWake.scheduledAt);
const dueAt = parseTimestamp(latestWake.dueAt);
const thresholdMs = scheduledAt
? scheduledAt.getTime() + latestWake.delaySeconds * normalizedOptions.wakeGraceMultiplier * 1000
: null;
const hasAssistantProgressAfterDue = Boolean(
dueAt
&& latestAssistantProgressAt
&& latestAssistantProgressAt.getTime() >= dueAt.getTime()
);
if (thresholdMs && nowMs >= thresholdMs && !hasAssistantProgressAfterDue) {
signals.push({
delaySeconds: latestWake.delaySeconds,
dueAt: latestWake.dueAt,
overdueSeconds: dueAt ? Math.max(0, Math.floor((nowMs - dueAt.getTime()) / 1000)) : null,
scheduledAt: latestWake.scheduledAt,
toolUseId: latestWake.toolUseId,
type: 'schedule_wakeup_overdue',
});
}
}
for (const tool of pendingToolList) {
if (
tool.name === 'Bash'
&& tool.ageSeconds !== null
&& tool.ageSeconds >= normalizedOptions.bashTimeoutSeconds
) {
signals.push({
ageSeconds: tool.ageSeconds,
command: tool.command,
startedAt: tool.startedAt,
thresholdSeconds: normalizedOptions.bashTimeoutSeconds,
toolUseId: tool.toolUseId,
type: 'pending_bash_tool_result',
});
}
}
if (parseErrors > 0) {
signals.push({
count: parseErrors,
type: 'transcript_parse_errors',
});
}
return {
eventCount: entries.length,
lastEventAt: toIso(lastEventAt),
latestWake,
parseErrors,
pendingTools: pendingToolList,
projectSlug: path.basename(path.dirname(absoluteTranscriptPath)),
recommendedAction: buildRecommendation(signals),
sessionId,
signals,
state: signals.length > 0 ? 'attention' : 'ok',
transcriptPath: absoluteTranscriptPath,
};
}
function buildStatus(options = {}) {
const normalizedOptions = normalizeOptions(options);
const nowDate = getNow(normalizedOptions);
const mergedOptions = {
...normalizedOptions,
nowDate,
};
const homeDir = getHomeDir(normalizedOptions);
const { errors, transcriptPaths } = findTranscriptPaths(normalizedOptions);
const sessions = [];
for (const transcriptPath of transcriptPaths) {
try {
sessions.push(analyzeTranscript(transcriptPath, mergedOptions));
} catch (error) {
errors.push({
code: error.code || null,
message: error.message,
transcriptPath,
});
}
}
sessions.sort((left, right) => {
if (left.state !== right.state) {
return left.state === 'attention' ? -1 : 1;
}
return String(right.lastEventAt || '').localeCompare(String(left.lastEventAt || ''));
});
return {
generatedAt: nowDate.toISOString(),
errors,
schemaVersion: 'ecc.loop-status.v1',
sessions,
source: {
bashTimeoutSeconds: normalizedOptions.bashTimeoutSeconds,
homeDir,
limit: normalizedOptions.limit,
transcriptCount: transcriptPaths.length,
transcriptRoot: path.join(homeDir, '.claude', 'projects'),
wakeGraceMultiplier: normalizedOptions.wakeGraceMultiplier,
},
};
}
function formatSignals(signals) {
if (signals.length === 0) {
return 'none';
}
return signals.map(signal => signal.type).join(', ');
}
function formatText(payload) {
const skippedLines = payload.errors.map(error => ` - ${error.transcriptPath}: ${error.message}`);
if (payload.sessions.length === 0) {
const lines = [
`ECC loop status (${payload.generatedAt})`,
skippedLines.length > 0
? 'No readable Claude transcript JSONL files were found.'
: `No Claude transcript JSONL files found under ${payload.source.transcriptRoot}.`,
];
if (skippedLines.length > 0) {
lines.push('Skipped transcript errors:');
lines.push(...skippedLines);
}
return lines.join('\n');
}
const lines = [`ECC loop status (${payload.generatedAt})`];
for (const session of payload.sessions) {
lines.push(`- ${session.sessionId} [${session.state}] ${session.transcriptPath}`);
lines.push(` last event: ${session.lastEventAt || 'unknown'}; events: ${session.eventCount}`);
lines.push(` signals: ${formatSignals(session.signals)}`);
lines.push(` action: ${session.recommendedAction}`);
}
if (skippedLines.length > 0) {
lines.push('Skipped transcript errors:');
lines.push(...skippedLines);
}
return lines.join('\n');
}
function hashString(value) {
return crypto.createHash('sha256').update(String(value)).digest('hex');
}
function isWindowsReservedBasename(value) {
const basename = String(value).split('.')[0];
return /^(con|prn|aux|nul|com[1-9]|lpt[1-9])$/i.test(basename);
}
function sanitizeSnapshotName(value, fallback = 'session') {
const raw = String(value || '').trim() || fallback;
const sanitized = raw.replace(/[^a-zA-Z0-9._-]/g, '_').replace(/^_+|_+$/g, '');
if (sanitized && sanitized.length <= 96 && !isWindowsReservedBasename(sanitized)) {
return sanitized;
}
if (sanitized && isWindowsReservedBasename(sanitized)) {
const firstDotIndex = sanitized.indexOf('.');
const hashSuffix = hashString(raw).slice(0, 8);
if (firstDotIndex === -1) {
return `${sanitized}-${hashSuffix}`;
}
return `${sanitized.slice(0, firstDotIndex)}-${hashSuffix}${sanitized.slice(firstDotIndex)}`;
}
const prefix = sanitized ? sanitized.slice(0, 48).replace(/[._-]+$/g, '') : fallback;
return `${prefix || fallback}-${hashString(raw).slice(0, 12)}`;
}
function atomicWriteJson(filePath, payload) {
const data = JSON.stringify(payload, null, 2) + '\n';
const tempPath = `${filePath}.${process.pid}.${Date.now()}.${Math.random().toString(16).slice(2)}.tmp`;
fs.writeFileSync(tempPath, data, 'utf8');
try {
fs.renameSync(tempPath, filePath);
} catch (error) {
try {
fs.unlinkSync(tempPath);
} catch (cleanupError) {
if (cleanupError.code !== 'ENOENT') {
console.error(`[loop-status] WARNING: could not remove temporary snapshot file ${tempPath}: ${cleanupError.message}`);
}
}
throw error;
}
}
function getSnapshotPath(outputDir, session, usedNames) {
const baseName = sanitizeSnapshotName(session.sessionId);
const hashSuffix = hashString(session.transcriptPath || session.sessionId).slice(0, 8);
let attempt = 0;
while (attempt < 1000) {
const suffix = attempt === 0 ? '' : `-${hashSuffix}${attempt === 1 ? '' : `-${attempt}`}`;
const fileName = `${baseName}${suffix}.json`;
if (!usedNames.has(fileName)) {
usedNames.add(fileName);
return path.join(outputDir, fileName);
}
attempt += 1;
}
throw new Error(`Could not allocate a snapshot filename for session ${session.sessionId}`);
}
function writeStatusSnapshots(payload, writeDir) {
if (!writeDir) {
return null;
}
const outputDir = path.resolve(writeDir);
fs.mkdirSync(outputDir, { recursive: true });
const usedNames = new Set(['index.json']);
const sessions = payload.sessions.map(session => {
const snapshotPath = getSnapshotPath(outputDir, session, usedNames);
atomicWriteJson(snapshotPath, {
generatedAt: payload.generatedAt,
schemaVersion: 'ecc.loop-status.session.v1',
session,
});
return {
lastEventAt: session.lastEventAt,
sessionId: session.sessionId,
signalTypes: session.signals.map(signal => signal.type),
snapshotPath,
state: session.state,
transcriptPath: session.transcriptPath,
};
});
const indexPath = path.join(outputDir, 'index.json');
atomicWriteJson(indexPath, {
errors: payload.errors,
generatedAt: payload.generatedAt,
schemaVersion: 'ecc.loop-status.index.v1',
sessionCount: payload.sessions.length,
sessions,
source: payload.source,
});
return {
indexPath,
sessionCount: payload.sessions.length,
};
}
function tryWriteStatusSnapshots(payload, options) {
if (!options.writeDir) {
return null;
}
try {
return writeStatusSnapshots(payload, options.writeDir);
} catch (error) {
console.error(`[loop-status] WARNING: could not write status snapshots: ${error.message}`);
return null;
}
}
function sleep(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
function writeStatus(payload, options) {
if (options.json) {
console.log(options.watch ? JSON.stringify(payload) : JSON.stringify(payload, null, 2));
} else {
console.log(formatText(payload));
}
}
function getStatusExitCode(payload) {
if (payload.sessions.some(session => session.state === 'attention')) {
return 2;
}
if (payload.errors.length > 0) {
return 1;
}
return 0;
}
async function runWatch(options) {
const normalizedOptions = normalizeOptions(options);
let iteration = 0;
let exitCode = 0;
while (normalizedOptions.watchCount === null || iteration < normalizedOptions.watchCount) {
if (iteration > 0 && !normalizedOptions.json) {
console.log('');
}
const payload = buildStatus(normalizedOptions);
tryWriteStatusSnapshots(payload, normalizedOptions);
writeStatus(payload, normalizedOptions);
exitCode = Math.max(exitCode, getStatusExitCode(payload));
iteration += 1;
if (normalizedOptions.watchCount !== null && iteration >= normalizedOptions.watchCount) {
break;
}
await sleep(normalizedOptions.watchIntervalSeconds * 1000);
}
return exitCode;
}
async function main() {
const options = parseArgs(process.argv);
if (options.showHelp) {
usage();
return;
}
if (options.watch) {
const exitCode = await runWatch(options);
if (options.exitCode) {
process.exitCode = exitCode;
}
return;
}
const payload = buildStatus(options);
tryWriteStatusSnapshots(payload, options);
writeStatus(payload, options);
if (options.exitCode) {
process.exitCode = getStatusExitCode(payload);
}
}
if (require.main === module) {
main().catch(error => {
console.error(`[loop-status] ${error.message}`);
process.exit(1);
});
}
module.exports = {
analyzeTranscript,
buildStatus,
extractToolResultIds,
extractToolUses,
getStatusExitCode,
parseArgs,
runWatch,
tryWriteStatusSnapshots,
writeStatusSnapshots,
};