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copilot-github-actions

Automate GitHub Copilot CLI in GitHub Actions workflows. USE FOR: installing/running `copilot -p` in workflow steps, choosing GITHUB_TOKEN vs a personal access token (COPILOT_GITHUB_TOKEN) for authentication, setting the copilot-requests write permission, minimal-permission tool allowlisting (--allow-tool, --deny-tool, --no-ask-user, -s/--silent, --output-format=json), triggers (schedule, workflow_dispatch, push), the recommended GitHub Agentic Workflows (gh-aw) alternative to direct CLI invocation, and security/cost considerations (fork PR prompt-injection risk, billing attribution, cost centers). DO NOT USE FOR: embedding the Copilot agent runtime into your own application (use copilot-sdk instead); general GitHub Actions authoring unrelated to Copilot; the Copilot code review or PR features outside of CLI automation.

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NetFabric/NetFabric.Numerics36 stars(GitHub 36 + cccskills 0)
Works withGitHub

Run score Not tested

See how to install

Files included (5)

  • SKILL.md3.8 KB
  • references/authentication.md2.8 KB
  • references/cli-invocation-patterns.md3.2 KB
  • references/gh-aw-vs-direct.md2.7 KB
  • references/security-and-cost.md2.3 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Copilot CLI + GitHub Actions

Run copilot (the GitHub Copilot CLI) as a step in a GitHub Actions workflow to automate AI-powered tasks in CI/CD — summaries, reports, reviews, scaffolding.

Core concepts

ConceptDescription
Workflow patternTrigger → checkout/setup → install CLI → authenticate → run copilot -p PROMPT
Programmatic mode-p/--prompt runs one prompt non-interactively and exits; no TTY needed
GITHUB_TOKEN authBuilt-in Actions token; no secrets to manage; needs copilot-requests: write permission
PAT authFine-grained PAT with "Copilot Requests" permission, passed via COPILOT_GITHUB_TOKEN secret
Token precedenceCOPILOT_GITHUB_TOKEN > GH_TOKEN > GITHUB_TOKEN
GitHub Agentic Workflows (gh-aw)Recommended layer over raw CLI invocation; adds guardrails for automated/untrusted contexts
Least privilegeScope permissions:, use --allow-tool/--deny-tool instead of --allow-all/--yolo

Minimal example (direct CLI invocation)

name: Daily summary
on:
  workflow_dispatch:
  schedule:
    - cron: '30 17 * * *'
permissions:
  contents: read
  copilot-requests: write
jobs:
  daily-summary:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with: { fetch-depth: 0 }
      - run: npm install -g @github/copilot
      - name: Run Copilot CLI
        run: |
          copilot -p "Summarize today's commits, with links, under 100 words. Write to summary.md" \
            --allow-tool='shell(git:*)' --allow-tool=write --no-ask-user -s
          cat summary.md >> "$GITHUB_STEP_SUMMARY"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Workflow: automate a task

  1. Decide direct CLI invocation vs. GitHub Agentic Workflows (recommended for most cases) → gh-aw-vs-direct.md
  2. Choose auth: GITHUB_TOKEN (org policy required) or a PAT via COPILOT_GITHUB_TOKEN → authentication.md
  3. Write the prompt/step with minimal permissions and a scoped tool allowlist → cli-invocation-patterns.md
  4. Review triggers and cost attribution before enabling on fork-PR events or org-wide → security-and-cost.md

Reference Files

FileLoad When
references/authentication.mdSetting up GITHUB_TOKEN vs PAT auth, org policy, token precedence
references/cli-invocation-patterns.mdWriting the workflow step: prompt options, tool allowlists, output capture, shell patterns
references/gh-aw-vs-direct.mdDeciding between raw copilot steps and GitHub Agentic Workflows
references/security-and-cost.mdFork PR risk, prompt injection, least privilege, billing/cost centers

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