feat(profiles): add opt-in Lean/Full and hybrid Auto selection

scripts/lib/context-profile-native-discovery.js

@@ -0,0 +1,70 @@
+'use strict';
+
+const { spawn, spawnSync } = require('node:child_process');
+const LIMIT = 2 * 1024 * 1024;
+
+function discoverSync(command, options) {
+  const result = spawnSync(process.execPath, [__filename, command], { ...options,
+    encoding: 'utf8', timeout: 35000, maxBuffer: LIMIT });
+  if (result.error || result.status !== 0) throw new Error('Native Codex discovery failed or exceeded its bound');
+  try { return JSON.parse(result.stdout); }
+  catch { throw new Error('Native Codex discovery returned invalid JSON'); }
+}
+
+async function discover(command) {
+  const child = spawn(command, ['app-server', '--stdio'], { cwd: process.cwd(), env: process.env,
+    stdio: ['pipe', 'pipe', 'pipe'] });
+  let buffer = ''; let outputBytes = 0; let errorBytes = 0; let nextId = 0;
+  const pending = new Map();
+  const closed = new Promise(resolve => child.once('close', resolve));
+  const fail = () => {
+    for (const handler of pending.values()) handler.reject(new Error('Native Codex discovery protocol failed'));
+    pending.clear();
+    child.kill('SIGKILL');
+  };
+  child.once('error', fail);
+  child.once('exit', fail);
+  child.stdin.on('error', fail);
+  child.stderr.on('data', bytes => { errorBytes += bytes.length; if (errorBytes > LIMIT) fail(); });
+  child.stdout.setEncoding('utf8');
+  child.stdout.on('data', bytes => {
+    outputBytes += Buffer.byteLength(bytes);
+    if (outputBytes > LIMIT) { fail(); return; }
+    buffer += bytes;
+    let end;
+    while ((end = buffer.indexOf('\n')) >= 0) {
+      const line = buffer.slice(0, end); buffer = buffer.slice(end + 1);
+      if (!line.trim()) continue;
+      let message;
+      try { message = JSON.parse(line); } catch { fail(); return; }
+      if (!message || typeof message !== 'object' || Array.isArray(message)) { fail(); return; }
+      const handler = pending.get(message.id);
+      if (handler) {
+        pending.delete(message.id);
+        if (message.error) handler.reject(new Error('Native Codex discovery request failed'));
+        else handler.resolve(message.result);
+      }
+    }
+  });
+  const request = (method, params) => new Promise((resolve, reject) => {
+    const id = ++nextId; pending.set(id, { resolve, reject });
+    child.stdin.write(`${JSON.stringify({ id, method, params })}\n`);
+  });
+  const timer = setTimeout(fail, 25000);
+  try {
+    await request('initialize', { clientInfo: { name: 'ecc-native-profile', version: '1.0.0' },
+      capabilities: { experimentalApi: true } });
+    child.stdin.write(`${JSON.stringify({ method: 'initialized' })}\n`);
+    return await request('skills/list', { cwds: [process.cwd()], forceReload: true });
+  } finally {
+    clearTimeout(timer);
+    child.kill('SIGKILL');
+    await closed;
+  }
+}
+
+if (require.main === module) {
+  discover(process.argv[2]).then(result => process.stdout.write(`${JSON.stringify(result)}\n`))
+    .catch(() => { process.stderr.write('Native Codex discovery failed\n'); process.exitCode = 1; });
+}
+module.exports = { discoverSync };