diff --git a/v2/sidecar/agent-runner.ts b/v2/sidecar/agent-runner.ts index b51bc93..b82bace 100644 --- a/v2/sidecar/agent-runner.ts +++ b/v2/sidecar/agent-runner.ts @@ -1,12 +1,16 @@ // Agent Runner — Node.js sidecar entry point // Spawned by Rust backend, communicates via stdio NDJSON -// Phase 3: full Agent SDK integration +// Manages claude CLI subprocess with --output-format stream-json import { stdin, stdout, stderr } from 'process'; import { createInterface } from 'readline'; +import { spawn, type ChildProcess } from 'child_process'; const rl = createInterface({ input: stdin }); +// Active agent sessions keyed by session ID +const sessions = new Map(); + function send(msg: Record) { stdout.write(JSON.stringify(msg) + '\n'); } @@ -24,19 +28,149 @@ rl.on('line', (line: string) => { } }); +interface QueryMessage { + type: 'query'; + sessionId: string; + prompt: string; + cwd?: string; + maxTurns?: number; + maxBudgetUsd?: number; + resumeSessionId?: string; +} + +interface StopMessage { + type: 'stop'; + sessionId: string; +} + function handleMessage(msg: Record) { switch (msg.type) { case 'ping': send({ type: 'pong' }); break; case 'query': - // Phase 3: call Agent SDK query() - send({ type: 'error', message: 'Agent SDK not yet integrated — Phase 3' }); + handleQuery(msg as unknown as QueryMessage); + break; + case 'stop': + handleStop(msg as unknown as StopMessage); break; default: send({ type: 'error', message: `Unknown message type: ${msg.type}` }); } } +function handleQuery(msg: QueryMessage) { + const { sessionId, prompt, cwd, maxTurns, maxBudgetUsd, resumeSessionId } = msg; + + if (sessions.has(sessionId)) { + send({ type: 'error', sessionId, message: 'Session already running' }); + return; + } + + const args = [ + '-p', + '--output-format', 'stream-json', + '--verbose', + ]; + + if (maxTurns) { + args.push('--max-turns', String(maxTurns)); + } + + if (maxBudgetUsd) { + args.push('--max-budget-usd', String(maxBudgetUsd)); + } + + if (resumeSessionId) { + args.push('--resume', resumeSessionId); + } + + args.push(prompt); + + log(`Starting agent session ${sessionId}: claude ${args.join(' ')}`); + + const child = spawn('claude', args, { + cwd: cwd || process.cwd(), + env: { + ...process.env, + // Unset CLAUDECODE to avoid nesting detection + CLAUDECODE: undefined, + }, + stdio: ['pipe', 'pipe', 'pipe'], + }); + + sessions.set(sessionId, child); + + send({ type: 'agent_started', sessionId }); + + // Parse NDJSON from claude's stdout + const childRl = createInterface({ input: child.stdout! }); + childRl.on('line', (line: string) => { + try { + const sdkMsg = JSON.parse(line); + send({ + type: 'agent_event', + sessionId, + event: sdkMsg, + }); + } catch { + // Non-JSON output from claude (shouldn't happen with stream-json) + log(`Non-JSON from claude stdout: ${line}`); + } + }); + + // Capture stderr for debugging + const stderrRl = createInterface({ input: child.stderr! }); + stderrRl.on('line', (line: string) => { + log(`[claude:${sessionId}] ${line}`); + send({ + type: 'agent_log', + sessionId, + message: line, + }); + }); + + child.on('error', (err: Error) => { + log(`Claude process error for ${sessionId}: ${err.message}`); + sessions.delete(sessionId); + send({ + type: 'agent_error', + sessionId, + message: err.message, + }); + }); + + child.on('exit', (code: number | null, signal: string | null) => { + log(`Claude process exited for ${sessionId}: code=${code} signal=${signal}`); + sessions.delete(sessionId); + send({ + type: 'agent_stopped', + sessionId, + exitCode: code, + signal, + }); + }); +} + +function handleStop(msg: StopMessage) { + const { sessionId } = msg; + const child = sessions.get(sessionId); + if (!child) { + send({ type: 'error', sessionId, message: 'Session not found' }); + return; + } + + log(`Stopping agent session ${sessionId}`); + child.kill('SIGTERM'); + + // Force kill after 5s if still running + setTimeout(() => { + if (sessions.has(sessionId)) { + log(`Force killing agent session ${sessionId}`); + child.kill('SIGKILL'); + } + }, 5000); +} + log('Sidecar started'); send({ type: 'ready' }); diff --git a/v2/sidecar/package-lock.json b/v2/sidecar/package-lock.json new file mode 100644 index 0000000..ac2b98b --- /dev/null +++ b/v2/sidecar/package-lock.json @@ -0,0 +1,481 @@ +{ + "name": "bterminal-sidecar", + "version": "0.1.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "bterminal-sidecar", + "version": "0.1.0", + "devDependencies": { + "esbuild": "0.25.4" + } + }, + "node_modules/@esbuild/aix-ppc64": { + "version": "0.25.4", + "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.25.4.tgz", + "integrity": "sha512-1VCICWypeQKhVbE9oW/sJaAmjLxhVqacdkvPLEjwlttjfwENRSClS8EjBz0KzRyFSCPDIkuXW34Je/vk7zdB7Q==", + "cpu": [ + "ppc64" + ], + "dev": true, + "license": "MIT", + "optional": true, + "os": [ + "aix" + ], + "engines": { + "node": ">=18" + } + }, + "node_modules/@esbuild/android-arm": { + "version": 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