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[aw] Nightly Workflow Upgrader finished without a terminal safe output

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Active
Tech stack
github-actions, go
Domain
ai-infra-agents, devops

Research direction

Start with the Nightly Workflow Upgrader definition at .github/workflows/nightly-workflow-compiler.md, then inspect the failed run and its agent-session.jsonl and agent-stdio.log artifacts as the issue directs. Determine why no terminal safe output was emitted despite a successful final tool call, and trace the workflow behavior that should guarantee it. Done when the cause is fixed and the workflow records terminal safe output on completion.

Written by the indexing model from the issue text.

Description

agentic-workflows
Workflow Failure

Workflow: Nightly Workflow Upgrader
Branch: main
Run: https://github.com/github/gh-aw-mcpg/actions/runs/39046301824

[!WARNING]
Missing Tools Reported: A missing-tool signal was recorded; agent text is excluded.

[!WARNING]
Task Could Not Be Completed: The workflow recorded a report_incomplete signal: the task was not completed or completion could not be confirmed.

Error details: 
Failure classification: missing_terminal_safe_output
Driver exit code: 0
Last tool call status: succeeded
Safe-output tools: available at gateway snapshot (registered 5 tools)
Safe-output MCP calls observed: 1
Safe-output persistence: nonempty (1 record, 0 malformed; not validation or publication evidence)
No terminal safe output was recorded. These observations do not establish why the agent omitted it; inspect the agent artifact (agent-session.jsonl and agent-stdio.log) for the final actions, then ensure the workflow emits a terminal safe output.

A comment or other safe output does not confirm that the requested task was completed. Only inferred runtime status and error codes are reported; agent text is excluded.

Action Required

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

Debug with any coding agent

Use this prompt with any coding agent (GitHub Copilot, Claude, Gemini, etc.):

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-mcpg/actions/runs/39046301824
Manually invoke the agent

Debug this workflow failure using your favorite Agent CLI and the agentic-workflows prompt.

[!TIP]

Stop reporting this workflow as a failure

To stop a workflow from creating failure issues, set report-failure-as-issue: false in its frontmatter:

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

Generated from Nightly Workflow Upgrader · copilot · sonnet55 · 17.2 AIC · ◷

  • expires on Oct 24, 2026, 3:45 PM UTC
Dominant language
Go
Stars
181
Forks
53
Avg merge
7h 12m
Merged PRs (30d)
219

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