What problem does it solve? Dev servers hide or alter server-side markup, locales, caches, redirects, and headers, so conclusions drawn from them are unreliable. This Skill defines how to raise honest verification stands — production builds of the site, admin, and API, optionally behind real nginx — so every claim about behavior is backed by a measurement on the real artifact. ## Core Features & Use Cases - Production-build verification: Build and serve the site, admin, and API as compiled artifacts on dedicated stand ports, with port-state checks via lsof before the first request. - Real nginx stand: Run the tree's actual deploy/nginx.conf in Docker to draw valid conclusions about 301 redirects, Cache-Control, and X-Cache-Status. - Admin sign-in workflow: Sign in through the real form with the seeded local account, handling classifier refusals by requesting normal mode rather than bypassing the live sign-in path. - Baseline comparison: Use git worktree to raise a second tree's stand on separate ports so "before vs. after the edit" claims are measured, not remembered. - Use Case: After editing a redirect rule, build the site, raise the nginx stand in Docker, and confirm the 301 and cache headers with curl against the real proxy config. ## Quick Start Ask the agent to verify the edit on a production build of the site served behind the real nginx stand and report the measured response headers.