| name | test-blackbox |
| description | Test a deployed surface from the outside as a black box — no source, no test hooks: functional smoke, visual regression, accessibility (axe), performance (Lighthouse), SEO, PWA (manifest/service worker/offline), broken links, and console/network errors. Triggers on "black-box test", "test the live site", "check the deployed app", "lighthouse/a11y/seo audit of the site". Not for unit tests. |
| allowed-tools | Read, Grep, Glob, Bash, Write, Edit |
test-blackbox — outside-in, no hooks
Exercise a running surface exactly as the outside world sees it — DOM/semantics, network, and
rendering — with zero access to the app's source or test seams. Part of the wf-tester team; runs on
the engine's script lane (Playwright) + CLI lane (Lighthouse, link crawler) + optional Docker
security/visual sidecars.
What to cover
- Functional smoke — the key pages/endpoints load, respond, and show the right thing (assert via role/semantics + network signals, not brittle text).
- Visual regression — baseline screenshots (rendered in Docker for font determinism; host runs self-skip unless
--allow-host-visual).
- Accessibility —
@axe-core/playwright per page; report violations by impact.
- Performance — Lighthouse (LHCI) budgets; flag regressions.
- SEO — crawl for meta/titles/canonical/sitemap, broken links (linkinator).
- PWA — manifest valid, service worker active, offline shell.
- Hygiene — no unexpected console errors, no failed requests (allowlists are for third-party noise only — never allowlist a first-party error to make a test pass; quarantine + file a finding instead).
How
cd .claude/skills/testing/engine && pnpm qa scaffold-service <name> --url <baseURL> (or reuse the target).- Run:
pnpm qa run --service <name> --env <profile> [--section s01-smoke] [--docker].
- Security sidecars (optional, Docker): testssl, HTTP Observatory, ZAP baseline (passive) — targets come from
MC_QA_TARGET_URL.
- Merge + report:
pnpm qa report --run <id>; unresolved gaps become tracked findings under .mc/qa/findings/.
Note on canvas apps
Some apps paint to a <canvas> (e.g. Flutter Web) — the DOM is empty. Assert via the accessibility
tree, network/resource signals, screenshots, or agent judgment, never innerText.
