{"record":{"id":"e90e7260846e5116","repo":"affaan-m/ECC","slug":"codex-returned-no-final-response-error-message","errorCode":null,"errorMessage":"Codex returned no final response: ${error.message}","messagePattern":"Codex returned no final response: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"skills/council-multi-model/scripts/review-with-codex.js","lineNumber":226,"sourceCode":"      maxBuffer: 1024 * 1024,\n      windowsHide: true,\n    });\n\n    if (result.error) {\n      if (result.error.code === 'ETIMEDOUT') throw new Error('Codex review timed out');\n      if (result.error.code === 'ENOENT') throw new Error('Codex CLI is not installed');\n      throw new Error(`Codex invocation failed: ${result.error.message}`);\n    }\n    if (result.status !== 0) {\n      const detail = (result.stderr || '').trim().split('\\n').slice(-1)[0];\n      throw new Error(`Codex review failed${detail ? `: ${detail}` : ''}`);\n    }\n\n    let text;\n    try {\n      text = readFile(outputFile, 'utf8').trim();\n    } catch (error) {\n      throw new Error(`Codex returned no final response: ${error.message}`);\n    }\n    if (!text) throw new Error('Codex returned an empty final response');\n    return `${providerLabel(options.hostProvider)}\\n${text}`;\n  } finally {\n    remove(tempDir, { recursive: true, force: true });\n  }\n}\n\nfunction runStdinReview(options, dependencies = {}) {\n  const stdin = dependencies.stdin || process.stdin;\n  const stdout = dependencies.stdout || process.stdout;\n  const stderr = dependencies.stderr || process.stderr;\n  const review = dependencies.runReview || runReview;\n  const setExitCode = dependencies.setExitCode || ((code) => { process.exitCode = code; });\n  const chunks = [];\n  let promptBytes = 0;\n  let promptOverflow = false;\n  stdin.setEncoding('utf8');","sourceCodeStart":208,"sourceCodeEnd":244,"githubUrl":"https://github.com/affaan-m/ECC/blob/01e15490f04e29cfefe3896951f43db46994d8ee/skills/council-multi-model/scripts/review-with-codex.js#L208-L244","documentation":"After a status-0 codex run, runReview reads the --output-last-message file (outputFile inside the temp dir). If readFile throws — file missing, permission denied, or tempDir removed — the underlying fs error is wrapped as 'Codex returned no final response: <fs message>'. It signals codex exited cleanly but did not produce the expected output artifact.","triggerScenarios":"readFile(outputFile, 'utf8') throws inside the inner try at line 223-225. The output file was not created by codex (e.g. --output-last-message not honored by the installed version) or the temp directory lost write permissions.","commonSituations":"Codex version that doesn't support --output-last-message; sandbox prevented codex from writing; a buildEnvironment/CODEX_HOME mismatch redirecting output; temp dir on a no-write filesystem.","solutions":["Confirm the installed Codex is exactly SUPPORTED_CODEX_VERSION (0.146.0), which honors --output-last-message.","Check that os.tmpdir() is writable by the spawning process.","Inspect the wrapped fs error message (ENOENT vs EACCES) to localize the cause.","Reproduce with the args from buildCodexArgs and look for last-message.txt in the temp dir."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try {\n  return runReview(packet, options);\n} catch (error) {\n  if (error.message.startsWith('Codex returned no final response')) {\n    // fs-level cause is in the message; check codex version + temp dir writability\n    log.error('codex produced no output file', { message: error.message });\n  }\n  throw error;\n}","preventionTips":["Verify the installed Codex is 0.146.0, which honors --output-last-message.","Confirm os.tmpdir() is writable by the process before invoking.","Avoid cleaning the temp dir yourself — runReview manages it in a finally block."],"tags":["filesystem","codex","output","subprocess"],"backgroundTag":null,"analyzedSha":"01e15490f04e29cfefe3896951f43db46994d8ee","analyzedAt":"2026-08-13T00:31:08.655Z","schemaVersion":2},"datasetVersion":"2026-08-13T04:17:16.726Z"}