Use when working in this repository after receiving recurring coding feedback, adding or reviewing durable lint guardrails from AGENTS.md, updating Rules/*.md, or finishing changes that should be checked by harness-lint.
Build and verify real-Postgres Go tests and thin transport smoke for tracking behavior.
Build and verify page-flow and E2E coverage for the tracking browser surface.
Build cross-layer regression coverage that ties browser-visible behavior to backend truth.
Harden shared test infrastructure, runtime readiness, schema setup, and parallel lane behavior.
Update backend timer/time-entry contracts, regressions, and source docs for the timer refactor mission.
Audit and finalize inline source-document status blocks for the timer refactor mission.
Refactor and verify website timer/time-entry surfaces on the reused local runtime.