Add PATs rotation to agentic workflow(s)#13496
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Regenerate lock files with the new compiler version. No functional changes.
Copy the select-copilot-pat composite action from dotnet/skills. This selects a random Copilot PAT from a numbered pool of secrets to distribute API load across multiple PATs. This is a stop-gap until organization-level billing is available for Agentic Workflows. See .github/actions/select-copilot-pat/README.md.
Use the select-copilot-pat action to randomly select from a pool of COPILOT_GITHUB_TOKEN / COPILOT_GITHUB_TOKEN_1..9 secrets, distributing Copilot API load across multiple PATs. Currently only COPILOT_GITHUB_TOKEN is configured; additional secrets can be added as COPILOT_GITHUB_TOKEN_1 through COPILOT_GITHUB_TOKEN_9.
ViktorHofer
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Apr 7, 2026
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Pull request overview
This PR updates the repository’s agentic “Close Stale Pull Requests” workflow by recompiling it with gh-aw v0.67.1 and introducing a PAT-rotation mechanism (randomly selecting from a pool of Copilot PAT secrets) via a new reusable composite action.
Changes:
- Add a reusable composite action (
.github/actions/select-copilot-pat) to randomly select a Copilot PAT from a secret pool. - Wire the selected PAT into the agentic workflow via
pre_activationoutputs + anengine.envcase(...)override ofCOPILOT_GITHUB_TOKEN. - Recompile the generated workflow lock file with
gh-awv0.67.1 (large regenerated diff).
Show a summary per file
| File | Description |
|---|---|
.github/workflows/close-stale-prs.agent.md |
Adds pre-activation steps and engine env override to rotate Copilot PAT usage. |
.github/workflows/close-stale-prs.agent.lock.yml |
Regenerated compiled workflow output (includes PAT selection wiring and other compiler-output changes). |
.github/aw/actions-lock.json |
Adds github/gh-aw-actions/[email protected] pin for the new compiler version. |
.github/actions/select-copilot-pat/README.md |
Documents how to onboard and configure the PAT pool + workflow wiring. |
.github/actions/select-copilot-pat/action.yml |
Implements the composite action that selects a non-empty secret index (0–9) and outputs it. |
Copilot's findings
- Files reviewed: 5/5 changed files
- Comments generated: 4
…stead of COPILOT_PAT_# Agent-Logs-Url: https://github.com/dotnet/msbuild/sessions/7cf4fd9a-e8bf-43c6-bd2e-9278df2c8be3 Co-authored-by: JanKrivanek <[email protected]>
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Updated [Microsoft.Build](https://github.com/dotnet/msbuild) from 18.6.3 to 18.7.1. <details> <summary>Release notes</summary> _Sourced from [Microsoft.Build's releases](https://github.com/dotnet/msbuild/releases)._ ## 18.7.1 ## What's Changed * Fix TraceEngine file contention deadlock in multithreaded mode by @JanProvaznik in dotnet/msbuild#13446 * Remove duplicate test cases in MultithreadableTaskAnalyzer by @Youssef1313 in dotnet/msbuild#13483 * Ensure ThreadSafeTaskAnalyzer.Tests is considered as a unit test project by @Youssef1313 in dotnet/msbuild#13481 * Fix MSBuildTask0002 analyzer warnings in already-migrated tasks by @JanProvaznik in dotnet/msbuild#13466 * Fix race conditions in task host path resolution by @AR-May in dotnet/msbuild#13485 * Migrate ToolTask and Al task to TaskEnvironment API by @OvesN in dotnet/msbuild#13423 * Bump main to 18.7, add vs18.6 to merge flow by @MichalPavlik in dotnet/msbuild#13472 * Avoid allocations in GetHashCode implementations by @DustinCampbell in dotnet/msbuild#13475 * Add PATs rotation to agentic workflow(s) by @JanKrivanek in dotnet/msbuild#13496 * Fix ASP.NET WebSite projects to copy netstandard.dll facade when required by @JanProvaznik in dotnet/msbuild#13058 * Migrate AspNetCompiler to TaskEnvironment API by @OvesN in dotnet/msbuild#13424 * Add review workflow by @JanKrivanek in dotnet/msbuild#13503 * Strengthen reviewer skill: add step-back analysis dimensions by @JanProvaznik in dotnet/msbuild#13504 * Add 'Request Speedometer Perf Run' to VS experimental insertion build policies by @Copilot in dotnet/msbuild#13505 * Remove duplicate @ prefix from issueAuthor in GitOps by @akoeplinger in dotnet/msbuild#13492 * Improve review aw by @JanKrivanek in dotnet/msbuild#13510 * Migrates unit tests to use RoslynCodeTaskFactory to enable running tests under .NET Core by @jankratochvilcz in dotnet/msbuild#13500 * Fix cross-AppDomain TaskItem modifier cache regression by @DustinCampbell in dotnet/msbuild#13493 * Discourage review agent from approving PRs by @JanKrivanek in dotnet/msbuild#13512 * Stop trying to deploy ValueTuple by @rainersigwald in dotnet/msbuild#13507 * Ad-hoc re-sign bootstrap dotnet on macOS to prevent SIGKILL by @jankratochvilcz in dotnet/msbuild#13513 * RoslynCodeTaskFactory: Log MSB3753 when task class does not implement ITask by @jankratochvilcz in dotnet/msbuild#13517 * Update gh-aw (upon mcp policy changes) by @JanKrivanek in dotnet/msbuild#13526 * Eliminate XmlChildNodes allocations in GetXmlNodeInnerContents by @nareshjo in dotnet/msbuild#13509 * Fix telemetry allocation regression: per-engine collector ownership by @JanProvaznik in dotnet/msbuild#13516 * Migrate to xunit.v3 by @Youssef1313 in dotnet/msbuild#13482 * Fix stray brace in HandleBuildCancel trace string causing MSB1025 by @Copilot in dotnet/msbuild#13535 * Bumping to 10.0.4 runtime packages by @MichalPavlik in dotnet/msbuild#13533 * Remove early return in GetCanonicalForm, always call System.IO.Path by @OvesN in dotnet/msbuild#13532 * Do not overwrite GetCopyToOutputDirectoryItemsDependsOn, just add new… by @snechaev in dotnet/msbuild#13474 * Migrate GetReferenceAssemblyPaths task to TaskEnvironment API by @OvesN in dotnet/msbuild#13495 * Stabilize ToolTaskThatTimeoutAndRetry test by @rainersigwald in dotnet/msbuild#13489 * [automated] Merge branch 'vs18.6' => 'main' by @github-actions[bot] in dotnet/msbuild#13506 * Add extra test assertions around tests by @Youssef1313 in dotnet/msbuild#13536 * Add static eval for repo skills/agents via skill-validator by @JanKrivanek in dotnet/msbuild#13537 * Migrate SGen task to Task environment API by @OvesN in dotnet/msbuild#13457 * Fix TerminalLogger assert failure for metaproj files and cached project eval ID by @OvesN in dotnet/msbuild#13480 * Filter out approving review from pr-reviewer agent by @JanKrivanek in dotnet/msbuild#13553 * Use a unique task name per invocation to tabilize RoslynCodeTaskFactory_ReuseCompilation test by @huulinhnguyen-dev in dotnet/msbuild#13551 * Brief doc on feedback/logging/data systems by @rainersigwald in dotnet/msbuild#13554 * Localized file check-in by OneLocBuild Task: Build definition ID 9434: Build ID 13881982 by @dotnet-bot in dotnet/msbuild#13437 * Stage 3: Forward BuildProjectFile* callbacks from OOP TaskHost to worker node by @JanProvaznik in dotnet/msbuild#13350 * Enable TaskHost Callbacks by default by @JanProvaznik in dotnet/msbuild#13579 * Remove unactionable info from reviewer agent by @JanKrivanek in dotnet/msbuild#13578 * Enlighten RequiresFramework35SP1Assembly task for multithreaded mode by @jankratochvilcz in dotnet/msbuild#13575 * Make SdkResolver-provided environment variables take precedence over ambient environment by @Copilot in dotnet/msbuild#12655 * Add dotnet/skills marketplace and enable plugins by @Evangelink in dotnet/msbuild#13582 * The skills/agents check filters-in only touched files by @JanKrivanek in dotnet/msbuild#13586 * Fix skill-validation workflow failing when agents directory is deleted by @JeremyKuhne in dotnet/msbuild#13592 ... (truncated) Commits viewable in [compare view](dotnet/msbuild@v18.6.3...v18.7.1). </details> Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
This was referenced Jun 29, 2026
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Context
Using a single PAT shared across all agentic workflows can lead to rate-limiting. This PR introduces a PAT-rotation mechanism to randomly select from a pool of Copilot PAT secrets.
Changes Made
COPILOT_GITHUB_TOKEN/COPILOT_GITHUB_TOKEN_1..9naming conventionREADME.mdin.github/actions/select-copilot-patto document theCOPILOT_GITHUB_TOKEN(_#)naming convention used in this repo (replacing the genericCOPILOT_PAT_#placeholder examples)Testing
COPILOT_GITHUB_TOKENandCOPILOT_GITHUB_TOKEN_1throughCOPILOT_GITHUB_TOKEN_9in both theselect-copilot-patstep env bindings and thecase(...)expressionNotes
The PAT pool uses
COPILOT_GITHUB_TOKENas the base secret (index 0) andCOPILOT_GITHUB_TOKEN_1throughCOPILOT_GITHUB_TOKEN_9for additional pool entries. This is a stop-gap workaround until organization/enterprise billing is offered for agentic workflows.