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Upgrade to actions/ai-inference v3 with Copilot CLI - #279
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v3 removes the GitHub Models provider and makes Copilot the only one, so v2's `models: read` + hosted inference API path no longer works at all. The action now shells out to the Copilot CLI, which is not preinstalled on GitHub-hosted runners, so both inference jobs install it first. No PAT is required. Copilot CLI accepts the built-in `GITHUB_TOKEN` when the workflow grants `copilot-requests: write`, which replaces `models: read` in both the reusable workflow and its caller (a caller can only cap a reusable workflow's permissions, so both need it). Usage is metered to the organization, which requires the "Allow use of Copilot CLI billed to the organization" policy to stay enabled. The action passes no `--allow-tool` flags, so Copilot keeps v2's containment: no shell, filesystem or network access, prompt in and text out. That matters most for `triage-new-item`, which runs on `pull_request_target` and feeds it pull request text from anyone who can open a PR. Noted inline so `copilot-allow-tools` is not added casually. The prompt told the model to "use the available tools to gather information", which no tool grant backs, so it now says to work only from the input data. actionlint 1.7.11 does not know the `copilot-requests` scope yet and fails the workflow lint, so `.github/actionlint.yml` filters that one error and is synced alongside `issue-triage.yml` to keep the ~44 target repositories green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RdDrWtq6hWWuDDQDxQx94G
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📝 WalkthroughWalkthroughThe issue triage workflows now use Copilot CLI permissions and ChangesIssue triage Copilot integration
Estimated code review effort: 3 (Moderate) | ~20 minutes Mergeability Score:🟠 High · up to The workflows download an unpinned Copilot CLI and run it with GITHUB_TOKEN, so a compromised release could access repository credentials and perform unauthorized actions. Pinning both installations to a reviewed version is needed before this PR is merge-ready. Sequence Diagram(s)sequenceDiagram
participant IssueTriage
participant ReusableTriage
participant CopilotCLI
participant AIInference
IssueTriage->>ReusableTriage: invoke reusable triage workflow
ReusableTriage->>CopilotCLI: install CLI
ReusableTriage->>AIInference: run v3 with GITHUB_TOKEN
AIInference->>CopilotCLI: use Copilot request permission
AIInference-->>ReusableTriage: return input-only classification
Possibly related PRs
Suggested reviewers: 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches 💡 1🛠️ Fix failing CI checks 💡
🧪 Generate unit tests (beta)
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swissspidy
commented
Aug 13, 2026
The red
Two consequences worth noting for review:
The check that does validate this branch is One thing to confirm before merging, since it cannot be verified from here: the org policy "Allow use of Copilot CLI billed to the organization" must be enabled for Generated by Claude Code |
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Inline comments:
In @.github/workflows/reusable-issue-triage.yml:
- Around line 51-52: Pin the Copilot CLI installation in both sites to the same
reviewed version, adding --ignore-scripts if supported. Update the install
commands at .github/workflows/reusable-issue-triage.yml lines 51-52 and 312-313;
both must use the identical explicit package version.
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⚙️ Run configuration
Configuration used: defaults
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📒 Files selected for processing (4)
.github/actionlint.yml.github/workflows/issue-triage.yml.github/workflows/reusable-issue-triage.yml.github/workflows/sync-workflows.yml
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The Copilot CLI is installed from npm at run time and then executes with a token in its environment. The `--allow-tool` containment noted in the previous commit stops a prompt injection from steering Copilot, but it does nothing about a compromised CLI release, because there the binary itself is what runs. On `pull_request_target` that token carried `issues: write` and `pull-requests: write`. Both triage paths now run inference in a job scoped to read plus `copilot-requests: write`, and hand the response to a dependent job that holds the write scopes and never installs or runs the CLI. No job holds both, so a compromised release has nothing to write with. The label allowlist check is unchanged and still gates what a model response can turn into. The CLI install stays unpinned: `GITHUB_TOKEN` authentication only works on recent releases, so a pin would eventually break the thing this migration is for. The permissions split addresses the exposure a pin was being asked to cover. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RdDrWtq6hWWuDDQDxQx94G
Summary
This PR upgrades the issue triage workflows to use
actions/ai-inferencev3, which requires installing and using the Copilot CLI instead of the deprecated GitHub Models provider. The change includes updating permissions, adding Node.js setup and Copilot CLI installation steps, and updating the AI prompt to reflect that no tools are available.Key Changes
models: readwithcopilot-requests: writein bothreusable-issue-triage.ymlandissue-triage.ymlto support Copilot CLI authentication viaGITHUB_TOKENtriage-new-itemandtriage-existing-itemjobs)actions/ai-inferencefrom v2 to v3 in both triage jobsGITHUB_TOKEN: ${{ github.token }}to the AI inference step for Copilot CLI authentication.github/actionlint.ymlto suppress false positives for the newcopilot-requestspermission scope (not yet in actionlint's hard-coded list)sync-workflows.ymlto include the new actionlint configuration file in the sync patternsNotable Implementation Details
GITHUB_TOKENonly works on recent CLI releases, making a pin counterproductive--allow-toolflags to Copilot, denying it shell, filesystem, and network accesshttps://claude.ai/code/session_01RdDrWtq6hWWuDDQDxQx94G
Summary by CodeRabbit