[aw] Changeset Generator engine driver failed before emitting a terminal safe output #66153

Workflow Failure

Workflow: Changeset Generator
Branch: copilot/aw-top-10-07-consolidate-container-image-cve-burn
Run: https://github.com/github/gh-aw/actions/runs/37470309900
Pull Request: #66122

Reasons:

• engine_driver_failure

  Agent finished without emitting a terminal safe output; task completion could not be confirmed.
  Driver exit code: 1. The engine driver exited before a terminal safe output was recorded.
  [codex-harness] 2026-10-06T13:25:33.560Z starting: command=codex maxRetries=3 initialDelayMs=5000 backoffMultiplier=2 maxDelayMs=60000 nodeVersion=v24.21.0 platform=linux
  [codex-harness] 2026-10-06T13:25:33.565Z secrets: CODEX_API_KEY=set (length=31) OPENAI_API_KEY=not set
  [codex-harness] 2026-10-06T13:25:33.566Z awf-reflect: fetching (apiproxy/redacted) (timeout=60000ms)
  [codex-harness] 2026-10-06T13:25:33.602Z awf-reflect: saved 35525B to /tmp/gh-aw/agent/awf-reflect.json
  [codex-harness] 2026-10-06T13:25:33.603Z awf-reflect: provider=github mapped to endpoint provider=copilot baseUrl=(apiproxy/redacted)
  [codex-harness] 2026-10-06T13:25:33.603Z configured OPENAI_BASE_URL from /reflect for provider=github: (apiproxy/redacted)
  [codex-harness] 2026-10-06T13:25:33.605Z context-rebuild circuit breaker: enabled=true maxRebuildFactor=25 minCumulativeInputTokens=1000000 pollIntervalMs=15000
  [codex-harness] 2026-10-06T13:25:33.608Z attempt 1: process started (pid=393)
  2026-10-06T13:25:35.965112Z ERROR codex_core::tools::router: error=patch rejected: empty patch
  [codex-harness] 2026-10-06T13:25:36.077Z attempt 1: process exit event exitCode=1
  [codex-harness] 2026-10-06T13:25:36.078Z attempt 1: process closed exitCode=1 duration=2s stdout=837B stderr=913B hasOutput=true
  [codex-harness] 2026-10-06T13:25:36.079Z attempt 1 failed: exitCode=1 watchdogFired=false runtimeGuardFired=false isRateLimitError=false isTokenPerMinuteRateLimitError=false isAuthenticationFailedError=false isMissingApiKeyError=false isServerError=false isInvalidModelError=false isUnsupportedModelToolsError=false isInvalidRequestError=true permissionDeniedCount=0 hasNumerousPermissionDenied=false hasOutput=true retriesRemaining=3
  [codex-harness] 2026-10-06T13:25:36.080Z attempt 1: invalid_request_error (HTTP 400) — not retrying (the provider rejected the request payload; an identical fresh run would fail the same way)
  [codex-harness] 2026-10-06T13:25:36.080Z awf-reflect: fetching (apiproxy/redacted) (timeout=60000ms)
  [codex-harness] 2026-10-06T13:25:36.089Z awf-reflect: saved 35799B to /tmp/gh-aw/agent/awf-reflect.json
  [codex-harness] 2026-10-06T13:25:36.089Z done: exitCode=1 totalDuration=2s
  {"type":"error","message":"{"error":{"message":"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.","type":"invalid_request_error","code":"unsupported_custom_tool"}}"}
  {"error":{"message":"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.","type":"invalid_request_error","code":"unsupported_custom_tool"}}
  Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.
  {"type":"turn.failed","error":{"message":"{"error":{"message":"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.","type":"invalid_request_error","code":"unsupported_custom_tool"}}"}}
  {"error":{"message":"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.","type":"invalid_request_error","code":"unsupported_custom_tool"}}
  Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.

This is a structured incompletion signal (report_incomplete), not a real task outcome. Any other safe outputs emitted alongside this signal (e.g., comments) describe the failure state, not a completed review or action.

Driver exit code: 1

Last agent output:

WARNING: proceeding, even though we could not create PATH aliases: Refusing to create helper binaries under temporary dir "/tmp" (codex_home: AbsolutePathBuf("/tmp/gh-aw/mcp-config"))
{"type":"thread.started","thread_id":"01a11164-138a-7bc1-9b77-11a31cde683b"}
{"type":"turn.started"}
2026-10-06T13:25:35.618630Z  WARN codex_core::session: item completed without a recorded start timestamp thread_id=01a11164-138a-7bc1-9b77-11a31cde683b turn_id=01a11164-1395-72b0-8936-1daeb4b484b0 item_id=BJ9/OyYuOORpYEl31wfefA7AEuA3sa8fnpxiiIjtIeUvNShoxOPvvktgKgx0vQIUNWrf+BpRzyQJ2d2eka3m/y+h+JmWqKlSaV52YaKMRlRDIgtgrcCSKmz8fceuUkmiJcKzbroZZzsg6OSF5g0fDW6zqnKLBJbrHlKgvOgNhQkU8npHKQENPuANT+x1Lbmcd/7XBGk97hhWMgI9Udaf+zbD184HamS9x6St0vZom0klwLse0bh2UcRjkSXPJU8JJHI54UEPgZaJUjw32CKkso5rSqVvLGDNEk2O56CDOYVmw8HMkehHQ8OaYl6LJnJcHgrhIxkByzNivbqvRP4Pip0hx7AYDXnV4OyOprNpO4q102QtKAcusFEQXvdNLxecQ12xJlOKhAydybwOyztr0cFTu+HsSNZP0E28UsPA5g==
{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"I’ll inspect the local diff and repository guidance, then either emit a no-op or create, validate, commit, and push the changeset."}}
2026-10-06T13:25:35.965112Z ERROR codex_core::tools::router: error=patch rejected: empty patch
{"type":"error","message":"{\"error\":{\"message\":\"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.\",\"type\":\"invalid_request_error\",\"code\":\"unsupported_custom_tool\"}}"}
{"type":"turn.failed","error":{"message":"{\"error\":{\"message\":\"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter.\",\"type\":\"invalid_request_error\",\"code\":\"unsupported_custom_tool\"}}"}}

Action Required

Assign this issue to an agent to debug and fix the issue.

Debug the agentic workflow failure using https://raw.githubusercontent.com/github/gh-aw/main/debug.md

The failed workflow run is at https://github.com/github/gh-aw/actions/runs/37470309900

safe-outputs:
  report-failure-as-issue: false

Generated from Changeset Generator · codex · 6.43 AIC · ◷

• expires on Oct 7, 2026, 1:28 AM UTC