GitHub Action

Run SpecSync in CI with zero setup. Auto-detects OS/arch, downloads the binary, runs validation.

Basic Usage

- uses: CorvidLabs/spec-sync@v4
  with:
    strict: 'true'
    require-coverage: '100'

Inputs

Full Workflow

name: Spec Check
on: [push, pull_request]

jobs:
  specsync:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: CorvidLabs/spec-sync@v4
        with:
          strict: 'true'
          require-coverage: '100'

PR Comments

Post spec drift results directly on pull requests. SpecSync runs diff --format markdown and posts (or updates) a comment showing added/removed exports.

name: Spec Check
on:
  pull_request:
    types: [opened, synchronize]

jobs:
  specsync:
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
      - uses: CorvidLabs/spec-sync@v4
        with:
          strict: 'true'
          comment: 'true'

How it works:

• Runs specsync check --force (always validates all specs — the hash cache is not committed to git)
• If comment: 'true', also runs specsync diff --format markdown
• Posts the markdown output as a PR comment (or updates an existing SpecSync comment)
• Requires pull-requests: write permission and the pull_request event trigger

Custom token (e.g., for private registries or cross-repo refs):

- uses: CorvidLabs/spec-sync@v4
  with:
    comment: 'true'
    token: ${{ secrets.MY_PAT }}

Multi-Platform Matrix

jobs:
  specsync:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4
      - uses: CorvidLabs/spec-sync@v4
        with:
          strict: 'true'

Monorepo

- uses: CorvidLabs/spec-sync@v4
  with:
    root: './packages/backend'
    strict: 'true'

Manual CI (without the action)

- name: Install specsync
  run: |
    curl -sL https://github.com/CorvidLabs/spec-sync/releases/latest/download/specsync-linux-x86_64.tar.gz | tar xz
    sudo mv specsync-linux-x86_64 /usr/local/bin/specsync

- name: Spec check
  run: specsync check --strict --require-coverage 100

Available Binaries