Assign Copilot Review Action

GitHub Action to automatically assign GitHub Copilot as a reviewer on pull requests.

Features

• Automatically assigns GitHub Copilot as a reviewer using the correct bot username (copilot-pull-request-reviewer[bot])
• Simple shell-based implementation using gh api command
• Better error handling with gh CLI
• Uses GH_TOKEN or GITHUB_TOKEN for authentication
• No dependencies required (composite action, gh CLI is pre-installed on GitHub Actions runners)

Requirements

• Repository must have GitHub Copilot code review enabled
• Personal Access Token (PAT) with pull_requests: write permission is required
  • GITHUB_TOKEN may not work in some cases due to permission limitations
  • It is recommended to use a PAT stored in repository secrets

Usage

Basic Usage (Recommended)

Use a Personal Access Token (PAT) for reliable operation:

name: Assign Copilot Review

on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  assign-copilot:
    runs-on: ubuntu-latest
    steps:
      - name: Assign Copilot as reviewer
        uses: mokmok-dev/assign-copilot-review-action@v1
        with:
          github-token: ${{ secrets.GH_TOKEN }}
          pr-number: ${{ github.event.pull_request.number }}

Note: Create a PAT with pull_requests: write permission and add it to your repository secrets as GH_TOKEN.

Using GITHUB_TOKEN (Not Recommended)

GITHUB_TOKEN may not work due to permission limitations:

name: Assign Copilot Review

on:
  pull_request:
    types: [opened, synchronize, reopened]

permissions:
  pull-requests: write

jobs:
  assign-copilot:
    runs-on: ubuntu-latest
    steps:
      - name: Assign Copilot as reviewer
        uses: mokmok-dev/assign-copilot-review-action@v1
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          pr-number: ${{ github.event.pull_request.number }}

Assign to a Different Repository

You can specify a different repository:

- name: Assign Copilot as reviewer to another repo
  uses: mokmok-dev/assign-copilot-review-action@v1
  with:
    github-token: ${{ secrets.GH_TOKEN }}
    pr-number: 123
    repository: owner/repo

Note: The token must have pull_requests: write permission for the target repository.

Inputs

Input	Description	Required	Default
github-token	GitHub token with pull request write permissions	Yes	-
pr-number	Pull request number	Yes	-
repository	Repository in the format owner/repo	No	${{ github.repository }}

Permissions

The action requires the following permissions:

permissions:
  pull-requests: write

License

MIT

References

• ChrisCarini/gh-copilot-review - Inspiration for Copilot review automation
• mokmok-dev/delete-actions-cache - GitHub Actions implementation pattern reference