Agent Skills: qa-matrix-automation

Automates landing-page QA matrices (eventing, address/serviceability paths, URL param persistence) against staging/prod with agent-browser, writing results as append-only JSONL queryable in DuckDB instead of hand-filled Google Sheet cells. Use when: a CE/QA sheet asks for SessionID-per-cell sign-off across browser/device combos, eventing checks are marked N/A for lack of tooling, or someone wants to replace manual QA matrix busywork with scripted runs. Triggers: QA sheet, eventing QA, Cohesion/Tagular event checks, Monarch evaluation testing, address category testing, serviceability redirect testing, session ID sign-off, browser/device matrix, DuckDB QA results.