coding-agent-pr-gate.yml

name: Coding-Agent PR Gate

on:
  pull_request:
    types: [opened, edited, reopened, ready_for_review, synchronize, labeled, unlabeled]

permissions: {}

jobs:
  checklist-gate:
    name: PR body checklist gate
    if: github.event.pull_request.draft == false && contains(github.event.pull_request.labels.*.name, 'coding-agent')
    runs-on: ubuntu-latest
    permissions:
      pull-requests: read
    steps:
      - name: Verify every checkbox in PR body is ticked
        uses: actions/github-script@v7
        with:
          script: |
            const body = context.payload.pull_request.body || '';

            // Strip HTML comments — guidance comments may contain unticked example boxes.
            // Then strip fenced code blocks — pasted command output must not trip the gate.
            const stripped = body
              .replace(/<!--[\s\S]*?-->/g, '')
              .replace(/```[\s\S]*?```/g, '');

            const lines = stripped.split(/\r?\n/);
            const unchecked = [];
            for (let i = 0; i < lines.length; i++) {
              const m = lines[i].match(/^\s*[-*]\s+\[\s\]\s+(.*)$/);
              if (m) {
                unchecked.push(`L${i + 1}: ${m[1]}`);
              }
            }

            if (unchecked.length > 0) {
              core.setFailed(
                `PR body has ${unchecked.length} unticked checkbox(es). ` +
                `The 'coding-agent' label requires every checkbox to be ticked before merge.\n\n` +
                unchecked.map(u => `  - ${u}`).join('\n') +
                `\n\nTick each box in the PR description, or remove the 'coding-agent' label if this PR was not produced by the agent.`
              );
              return;
            }

            core.info('All checkboxes in the PR body are ticked. Gate passes.');