Both Playwright-on-Vercel workflows fail at the very first action
(`patrickedqvist/wait-for-vercel-preview@v1.3.2`) with 403 "Resource
not accessible by integration". The cause is the repo-default workflow
token being read-only-by-default with no scopes declared by the workflow.
Add minimal scoped permission blocks per the GitHub Actions least-privilege
guidance:
preview-smoke.yml:
contents: read
deployments: read # wait-for-vercel-preview queries GitHub Deployments
pull-requests: read # correlate deployment with this PR
statuses: read # some Vercel deployments use commit statuses
visual-diff.yml:
contents: read
deployments: read
pull-requests: write # final step posts "Visual Diff" comment via Issues API
statuses: read
Verified against the failure on PR #15:
- Playwright smoke: "Resource not accessible by integration" on
wait-for-vercel-preview → fixed by deployments+statuses+pull-requests:read
- Screenshot diff: 403 from POST /repos/.../issues/15/comments with
`x-accepted-github-permissions: issues=write; pull_requests=write`
in the response → fixed by pull-requests:write (covers Issues API
for PR comments; issues:write would also work but pull-requests:write
is the idiomatic scope)
Unblocks visual-regression signal on every future PR. No code changes,
no test changes — workflow YAML only.
Co-authored-by: Cursor <cursoragent@cursor.com>
