One command turns scattered web performance tooling into a single scientific loop — propose → measure → keep/revert — over chrome-devtools-mcp, with a static Perf Map, an LCP Attribution Map, a per-repo performance memory, and Dep Pulse, which reads real release notes to surface perf-relevant dependency bumps — ambient alongside Autoresearch runs, or standalone on a direct dependency ask. The two maps below are real, unedited build output against real captures; the run report renders a bundled sample run, not a live one.