A repository has a validation workflow for Copilot-generated pull requests. The team wants failures to be diagnosable from the workflow logs and artifacts without rerunning the agent blindly. A reviewer checks the workflow configuration.

name: validate-agent-pr

on:
  pull_request:
    branches:
      - main

permissions:
  contents: read
  actions: read
  checks: read

jobs:
  validate:
    runs-on: ubuntu-latest
    env:
      GIT_TRACE: "1"
      GIT_CURL_VERBOSE: "1"
    steps:
      - uses: actions/checkout@v4

        - name: Capture agent plan
          run: |
            mkdir -p diagnostics
            test -f .github/copilot/implementation-plan.md && \
              cp .github/copilot/implementation-plan.md diagnostics/implementation-plan.md || \
              echo "plan not found" > diagnostics/implementation-plan.md

        - name: Run validation tests
          run: |
            npm ci --verbose
            npm test -- --json --outputFile=diagnostics/test-results.json

      - name: Upload diagnostics
        if: ${{ always() }}
        uses: actions/upload-artifact@v4
        with:
          name: copilot-validation-diagnostics
          path: diagnostics/
Evaluate the following statements.

1. Verbose Git and npm output can improve workflow log evidence.
2. The diagnostics artifact is uploaded after failed test runs.
3. The artifact upload makes failed required checks pass.