codespaces-prebuild.yml

name: Codespaces Prebuild

on:
  push:
    branches: [main]
    paths:
      - '.devcontainer/**'
      - 'pyproject.toml'
      - 'uv.lock'
      - '.github/workflows/codespaces-prebuild.yml'
  schedule:
    # Rebuild weekly on Sundays at 2 AM UTC to keep dependencies fresh
    - cron: '0 2 * * 0'
  workflow_dispatch:

# Least privilege at the workflow level; jobs opt into the scopes they need.
permissions: {}

jobs:
  # This workflow triggers GitHub to create a new prebuild
  # The actual prebuild happens via Codespaces settings
  trigger-prebuild:
    runs-on: ubuntu-latest
    permissions:
      contents: read
    steps:
      - name: Checkout
        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          persist-credentials: false

      - name: Log prebuild trigger
        run: |
          echo "Codespaces prebuild triggered"
          echo "This will cache:"
          echo "  - uv installation"
          echo "  - Python dependencies (via uv sync)"
          echo "  - Pre-commit hooks"
          echo ""
          echo "Agents will get instant startup!"