What problem does it solve? Planning test coverage for a change's blast radius is often ad hoc, with teams guessing which areas need automated tests, which need manual probes, and which gaps are acceptable. This Skill produces a structured, TDD-first test plan that assigns every blast radius area to one of four explicit tiers with exact commands and documented gap resolutions. ## Core Features & Use Cases - Four-Tier Assignment Waterfall: Classifies each area as fully-automated, hybrid, agent-probe, or known-gap based on whether deterministic commands, preconditions, or human judgment are required. - High-Risk Class Enforcement: Forces at least hybrid-tier coverage for auth, billing, migrations, public APIs, deploy behavior, and permission logic, with mandatory rationale for any accepted gap. - TDD Stub Generation: Emits inline failing test skeletons for every fully-automated row so execute agents have a red-first starting point. - Use Case: During a VALIDATE phase after fan-out, run this Skill against a plan file to produce per-area coverage tables, gap resolution options (write test, set up infra, accept gap, backlog), and a missing-areas table before writing the validate contract. ## Quick Start Ask the agent to generate a test coverage plan for the blast radius described in your plan file, loading the all-tests.md routing chain first.
