When Playwright-MCP is available in the session, GSD UI verification
steps can be automated via screenshot comparison instead of manual
checkbox review. Falls back to manual flow when Playwright is not
configured.
Closes#1420
Strip unsupported `skills:` key from gsd-ui-auditor, gsd-ui-checker, and
gsd-ui-researcher agent frontmatter. Update Copilot install test expectations
to 36 skills / 15 agents.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add pre-planning design contract generation and post-execution visual audit
for frontend phases. Closes the gap where execute-phase runs without a visual
contract, producing inconsistent spacing, color, and typography across components.
New agents: gsd-ui-researcher (UI-SPEC.md), gsd-ui-checker (6-dimension
validation), gsd-ui-auditor (6-pillar scored audit + registry re-vetting).
Third-party shadcn registry blocks are machine-vetted at contract time,
verification time, and audit time — three enforcement points, not a checkbox.
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
