[aw] PR Iteration Agent 🔧 failed

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Workflow Failure

Workflow: PR Iteration Agent 🔧
Branch: main
Run: https://github.com/microsoft/vstest/actions/runs/26353072735

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

● Check test setup and TempDirectory (shell)
  │ cd /home/runner/work/vstest/vstest && sed -n '55,100p'
  │ test/Microsoft.TestPlatform.TestUtilities/IntegrationTestBase.cs
  └ 47 lines...
● Compare original and new CreateNoNewWindowTests (shell)
  │ cd /home/runner/work/vstest/vstest && cat test/Microsoft.TestPlatform.Accept
  │ ance.IntegrationTests/CreateNoNewWindowTests.cs && echo "---ORIGINAL---" &&
  │ git show main:test/Microsoft.TestPlatform.Acceptance.IntegrationTests/Create
  │ NoNewWindowTests.cs
  └ 159 lines...

Action Required

Assign this issue to Copilot using the agentic-workflows sub-agent to automatically debug and fix the workflow failure.

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/microsoft/vstest/actions/runs/26353072735

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 prompt from .github/agents/agentic-workflows.agent.md or https://github.com/github/gh-aw/blob/main/.github/agents/agentic-workflows.agent.md
• Type debug the agentic workflow pr-iteration failure in https://github.com/microsoft/vstest/actions/runs/26353072735

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 PR Iteration Agent 🔧 · ◷

• expires on May 31, 2026, 6:09 AM UTC

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Agent job 26434403390 failed.

🛡️ Protected Files: The code push was refused because the patch modifies protected files (package manifests, agent instruction files, or repository security configuration). This protection guards against unintended supply chain changes.

Blocked Operations:

• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.

⚙️ Configure protected-files: fallback-to-issue

safe-outputs:
  push-to-pull-request-branch:
    protected-files: fallback-to-issue

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26556913472 failed.

⚠️ Code Push Failed: A code push safe output failed, and subsequent safe outputs were cancelled.
Code Push Errors:

• push_to_pull_request_branch: Failed to apply bundle

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26557729218 failed.

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  └ [{"additions":37,"base":{"ref":"main","repo":{"description":"Visual Stud...
Let me try a Release build to check for compile errors:
● Build PR 16058 branch in Release config (shell)
  │ cd /home/runner/work/vstest/vstest && ./build.sh -c Release 2>&1 | tail -20
  └ 21 lines...
Let me check PR 16057 to understand the failure pattern:
● pull_request_read (MCP: github) · method: "get", owner: "microsoft", pullNumber: 16057, repo: "vs...
  └ [{"additions":39,"base":{"ref":"main","repo":{"description":"Visual Stud...
● pull_request_read (MCP: github) · method: "get_review_comments", owner: "microsoft", pullNumber: ...
  └ [{"content":[{"text":"{\"review_threads\":[{\"is_resolved\":false,\"is_o...

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26675772143 failed.

🛡️ Protected Files: The code push was refused because the patch modifies protected files (package manifests, agent instruction files, or repository security configuration). This protection guards against unintended supply chain changes.

Blocked Operations:

• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.

⚙️ Configure protected-files: fallback-to-issue

safe-outputs:
  push-to-pull-request-branch:
    protected-files: fallback-to-issue

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26704581768 failed.

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  exitCode: 1,
  signal: undefined,
  signalDescription: undefined,
  stdout: undefined,
  stderr: undefined,
  failed: true,
  timedOut: false,
  isCanceled: false,
  killed: false
}

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26737748939 failed.

🛡️ Protected Files: The code push was refused because the patch modifies protected files (package manifests, agent instruction files, or repository security configuration). This protection guards against unintended supply chain changes.

Blocked Operations:

• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.
• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.
• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.

⚙️ Configure protected-files: fallback-to-issue

safe-outputs:
  push-to-pull-request-branch:
    protected-files: fallback-to-issue

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26738640537 failed.

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

Now let me switch to PR 16059 and investigate its CI failure:
● Switch to PR 16059 branch (shell)
  │ cd /home/runner/work/vstest/vstest && git checkout -- . && git checkout
  │ fix/xlf-available-format-keys-621f557b78162f60
  └ 3 lines...
✗ pull_request_read (MCP: github) · method: "get_check_runs", owner: "microsoft", pullNumber: 16059...
  └ MCP server 'github': McpError: MCP error 0: response labeling failed: failed
    to allocate WASM input buffer: module closed with exit_code(0)
✗ pull_request_read (MCP: github) · method: "get_check_runs", owner: "microsoft", pullNumber: 16059...
  └ MCP server 'github': TypeError: fetch failed

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26914880463 failed.

🛡️ Protected Files: The code push was refused because the patch modifies protected files (package manifests, agent instruction files, or repository security configuration). This protection guards against unintended supply chain changes.

Blocked Operations:

• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/pr-expert-reviewer.lock.yml, .github/workflows/pr-expert-reviewer.md). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.

⚙️ Configure protected-files: fallback-to-issue

safe-outputs:
  push-to-pull-request-branch:
    protected-files: fallback-to-issue

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26915015424 failed.

⚠️ Code Push Failed: A code push safe output failed, and subsequent safe outputs were cancelled.
Code Push Errors:

• push_to_pull_request_branch: Failed to apply bundle

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26915007357 failed.

🛡️ Protected Files: The code push was refused because the patch modifies protected files (package manifests, agent instruction files, or repository security configuration). This protection guards against unintended supply chain changes.

Blocked Operations:

• push_to_pull_request_branch: Cannot push to pull request branch: patch modifies protected files (.github/workflows/issue-repro-triage.md, .github/workflows/issue-repro-triage.lock.yml, .github/workflows/daily-qa.md, .github/workflows/pr-expert-reviewer.md, .github/workflows/pr-iteration.md, .github/workflows/pr-expert-reviewer.lock.yml). Add them to the allowed-files configuration field or set protected-files: fallback-to-issue to create a review issue instead.

⚙️ Configure protected-files: fallback-to-issue

safe-outputs:
  push-to-pull-request-branch:
    protected-files: fallback-to-issue

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26915662358 failed.

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  └ 42 lines...
● Find TerminalLoggerTestProject.csproj (shell)
  │ find test -name "TerminalLoggerTestProject.csproj" 2>/dev/null
  └ 2 lines...
● Check test project file (shell)
  │ cat
  │ test/TestAssets/TerminalLoggerTestProject/TerminalLoggerTestProject.csproj
  └ 21 lines...
● pull_request_read (MCP: github) · method: "get_comments", owner: "microsoft", pullNumber: 16058, ...
  └ [{"content":[{"text":"[{\"id\":4528802148,\"body\":\"Commit pushed: [`86...

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26917547759 failed.

⚠️ Code Push Failed: A code push safe output failed, and subsequent safe outputs were cancelled.
Code Push Errors:

• push_to_pull_request_branch: Failed to apply bundle

Generated from PR Iteration Agent 🔧 · ◷

[nohwnd]

Agent job 26933610106 failed.

⚠️ Engine Failure: The copilot engine terminated unexpectedly.

Last agent output:

  │ cd /home/runner/work/vstest/vstest && git show
  │ origin/main:test/Microsoft.TestPlatform.TestUtilities/IntegrationTestBase.cs
  │ | grep -n "InvokeDotnetMSBuild\|FormatStandard\|line 310\|public void
  │ Invoke" | head -20
  └ 8 lines...
● Check around line 310 in main's IntegrationTestBase (shell)
  │ cd /home/runner/work/vstest/vstest && git show
  │ origin/main:test/Microsoft.TestPlatform.TestUtilities/IntegrationTestBase.cs
  │ | sed -n '310,350p'
  └ 42 lines...

Generated from PR Iteration Agent 🔧 · ◷

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Agent job 26684950000 failed.

Generated from PR Iteration Agent 🔧 · ◷