[aw] Runtime Failure Observer (xharness) is missing required tool

[github-actions]

Workflow Failure

Workflow: Runtime Failure Observer (xharness)
Branch: main
Run: https://github.com/dotnet/xharness/actions/runs/34693649502

Warning

Missing Tools Reported: The agent reported missing tools during execution.

Missing Tools:

• GitHub CLI authentication: Required xharness fix-deduplication searches (gh issue list and gh pr list) cannot execute because the environment provides no authenticated gh access, and no GitHub read tool is available to substitute for those required searches.

Alternatives:

Tool	Alternative
GitHub CLI authentication	Used the constrained AzDO/Helix observer helper for all permitted runtime reads; no safe substitute is available for the mandated deduplication queries.

Warning

Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  │ fix-deduplication searches (gh issue list and gh pr list) cannot execute because the
  │ environment provides no authenticated gh access, and no GitHub read tool is available to
  │ substitute for those required searches." --alternatives "Used the constrained AzDO/Helix
  │ observer helper for all permitted runtime reads; no safe substitute is available for the …
  └ 15 lines…
**Scan incomplete:** the observer found repeatable `TIMED_OUT` (exit code 70) XHarness failures in runtime build `1593920`, but could not perform the mandatory xharness issue/PR deduplication searches because authenticated GitHub CLI access is unavailable and no substitute GitHub read tool is exposed. A `missing_tool` completion was recorded; no PR was created.
Changes    +0 -0
Duration   2m 46s
Tokens     ↑ 1.6m (1.5m cached, 61.0k written) • ↓ 10.4k (1.4k reasoning)
Resume     copilot --resume=74f3fe30-e691-40b9-9d17-a0f64f0da191

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/dotnet/xharness/actions/runs/34693649502

Manually invoke the agent

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

• Start your agent
• Load the agentic-workflows skill from .github/skills/agentic-workflows/SKILL.md or https://github.com/github/gh-aw/blob/main/.github/skills/agentic-workflows/SKILL.md
• Type debug the agentic workflow runtime-failure-observer.agent failure in https://github.com/dotnet/xharness/actions/runs/34693649502

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 Runtime Failure Observer (xharness) · 54.6 AIC · ◷

[github-actions]

Agent job 34729373000 failed.

Warning

Missing Tools Reported: The agent reported missing tools during execution.

Missing Tools:

• GitHub MCP issue/PR search: Step 4 requires GitHub issue and pull-request dedup searches, but the GitHub MCP read tools are unavailable to this agent and gh is explicitly unauthenticated.

Alternatives:

Tool	Alternative
GitHub MCP issue/PR search	No permitted authenticated GitHub-read client is available; direct gh API reads are disallowed by the workflow.

Warning

Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  │ safeoutputs missing_tool --tool "GitHub MCP issue/PR search" --reason "Step 4 requires GitHub
  │ issue and pull-request dedup searches, but the GitHub MCP read tools are unavailable to this
  │ agent and gh is explicitly unauthenticated." --alternatives "No permitted authenticated
  │ GitHub-read client is available; direct gh API reads are disallowed by the workflow."
  └ 14 lines...
**Scan incomplete:** the required authenticated GitHub dedup search (Step 4) was unavailable, so no pull request was created. The fetched runtime timeout consoles already show XHarness reporting the 10,800-second configured timeout and suggesting `--timeout`, leaving no supported small diagnostic fix to propose.
Changes    +0 -0
Duration   1m 33s
Tokens     ↑ 811.5k (770.3k cached, 41.2k written) • ↓ 5.7k (1.0k reasoning)
Resume     copilot --resume=4470dbdb-9820-4460-80da-f063c3695f9e

Generated from Runtime Failure Observer (xharness) · 30.5 AIC · ◷

[github-actions]

Agent job 34757110542 failed.

Warning

Missing Tools Reported: The agent reported missing tools during execution.

Missing Tools:

• gh: Required xharness issue and pull-request deduplication searches could not execute because gh requires GH_TOKEN in this workflow.

Alternatives:

Tool	Alternative
gh	Confirmed the observed timeout diagnostic is already present in HEAD, but the mandated GitHub searches cannot be substituted.

Warning

Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  │ 'Confirmed the observed timeout diagnostic is already present in HEAD, but the mandated GitHub
  │ searches cannot be substituted.' '{tool:$tool,reason:$reason,alternatives:$alternatives}' |
  │ safeoutputs missing_tool .
  └ 14 lines...
**Scan incomplete:** the required GitHub deduplication searches could not run because `gh` has no workflow token. I reported the unavailable tool through the required workflow channel and did not create a PR.
The fetched MacCatalyst timeout console already shows the requested timeout guidance, and `HEAD` contains both the timeout duration and `--timeout` remediation diagnostics.
Changes    +0 -0
Duration   1m 36s
Tokens     ↑ 885.2k (838.8k cached, 46.3k written) • ↓ 5.4k (1.3k reasoning)
Resume     copilot --resume=7c74e6be-5e54-4c88-9729-1c11efcc309b

Generated from Runtime Failure Observer (xharness) · 32.5 AIC · ◷

[vitek-karas]

Duplicate of #1724. The Runtime Failure Observer could not access the required GitHub MCP issue/PR search capability during deduplication.