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Skip Vally evaluations on fork pull requests #3302

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Copilot Aug 18, 2026
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Skip Vally evaluations for fork pull requests where secrets are unava…
Copilot Aug 18, 2026
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20 changes: 18 additions & 2 deletions .github/workflows/vally-eval.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,12 @@ jobs:
eval-job:
runs-on: ubuntu-latest

env:
# Secrets, including COPILOT_GITHUB_TOKEN, are not available to workflows triggered by
# pull requests from forks. Without the token, every evaluation fails with
# "Session was not created with authentication info or custom provider".
IS_FORK_PR: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name != github.repository }}

steps:
- name: Checkout repository
uses: actions/checkout@v7.0.0
Expand All @@ -39,7 +45,13 @@ jobs:
- name: Install .NET SDK
uses: actions/setup-dotnet@v5.4.0

- run: npm install -g @microsoft/vally-cli@0.13.0
- name: Report skipped evaluations
if: ${{ env.IS_FORK_PR == 'true' }}
run: echo "::notice::Vally evaluations are skipped for pull requests from forks because the COPILOT_GITHUB_TOKEN secret is not available. A maintainer must run them from a branch in this repository."

- name: Install vally CLI
if: ${{ env.IS_FORK_PR != 'true' }}
run: npm install -g @microsoft/vally-cli@0.13.0

- name: Set BUILD_REASON environment variable
if: ${{ github.event_name == 'pull_request' }}
Expand All @@ -51,6 +63,7 @@ jobs:
} >> "$GITHUB_ENV"

- name: Create build_info.json
if: ${{ env.IS_FORK_PR != 'true' }}
shell: pwsh
run: |
if ($env:BUILD_REASON -eq 'PullRequest') {
Expand All @@ -63,6 +76,7 @@ jobs:
./eng/scripts/New-BuildInfo.ps1 -ServerName Azure.Mcp.Server

- name: Build server code
if: ${{ env.IS_FORK_PR != 'true' }}
shell: pwsh
run: |
$rid = [System.Runtime.InteropServices.RuntimeInformation]::RuntimeIdentifier
Expand All @@ -84,9 +98,11 @@ jobs:
./eng/scripts/Build-Code.ps1 -BuildInfoPath "${{ github.workspace }}/.work/build_info.json" -PlatformName $platformName

- name: Create vally evaluations
if: ${{ env.IS_FORK_PR != 'true' }}
run: dotnet run --project '${{ github.workspace }}/eng/tools/VallyEvaluator/src/VallyEvaluator.csproj' -- --buildInfo '${{ github.workspace }}/.work/build_info.json'

- name: Run vally
if: ${{ env.IS_FORK_PR != 'true' }}
run: |
$isDebug = '${{ github.event.inputs.logLevel }}' -eq 'true'
$numberOfRuns = [int]'${{ inputs.numberOfRuns || 1 }}'
Expand All @@ -106,7 +122,7 @@ jobs:
COPILOT_GITHUB_TOKEN: ${{ secrets.COPILOT_GITHUB_TOKEN }}

- name: Upload vally results
if: ${{ always() }}
if: ${{ always() && env.IS_FORK_PR != 'true' }}
uses: actions/upload-artifact@v4
with:
name: vally-results
Expand Down