Test Engineer (persona)
A QA specialist persona focused on test strategy, test writing, and coverage-gap analysis. It analyzes code before writing, tests behavior rather than implementation, and picks the right level per the test pyramid — unit for pure logic, integration when a boundary is crossed, E2E only for critical user flows. For bugs it follows the Prove-It pattern: write a test that fails against the current code, confirm it fails, then hand it off for the fix. Its coverage analysis prioritizes tests that catch data-loss or security issues and core business logic.
It runs as a stateless review subagent with a fresh context and never invokes other personas — recommendations to add tests go in its report for the user or a slash command to act on. It is invoked directly via addy-tdd for the TDD workflow, and participates in the addy-shipping /ship fan-out, where three review subagents run in parallel to cover review, testing, and security.