Two-axis review of the diff since a fixed point (commit, branch, tag, merge-base) — Standards (house coding standards + a Fowler code-smell baseline) and Spec (does the diff faithfully implement the originating issue / PRD?). Runs the two axes as parallel sub-agents so neither pollutes the other, then reports them side by side. Use when the user wants to review a branch / PR / work-in-progress, asks to "review since X", or when an orchestrator (e.g. /ship) needs a pre-merge gate.
Find deepening opportunities in a codebase, informed by the domain language in CONTEXT.md and the decisions in docs/adr/.
Resolve an in-progress git merge or rebase conflict by understanding each side's original intent, then preserving both where possible. Use when a merge/rebase is mid-conflict, when the user asks to resolve conflicts, or after a /ship merge-back was aborted and they want to finish the merge by hand.
Orchestrate a feature's ready-for-agent issues to completion. Reads the dependency DAG from frontmatter, topologically sorts, dispatches independent issues to subagents running /tdd (same-module work serialized, cross-module parallelized), enforces a build+test verification gate before each commit, and collects ready-for-human issues into a hands-on checklist.
Test-driven development with red-green-refactor loop. Four invocation forms — `/tdd <issue-path>` runs one issue (mode chosen by frontmatter `status:`); bare `/tdd` drains every ready-for-agent issue serially in dependency order; `/tdd <feat>` drains just that feature; a natural-language ask without an issue falls back to interview-driven flow. Use when user wants to build features or fix bugs using TDD, mentions "red-green-refactor", wants integration tests, or asks for test-first development.
Break a plan, spec, or PRD into independently-grabbable issues using vertical slices. For a change that touches existing code, first runs an impact-detection pass (blast radius + regression risk) before slicing. When a PRD is re-run after revision, produces a reconciliation report against existing issues (kept / redo / edit / delete / new).
Turn the current conversation context into a PRD and write it under .scratch/<feat>/. Detects existing related PRDs first; if found, defaults to writing a superseding PRD-vN.md rather than editing the old one.
Create new agent skills with proper structure, progressive disclosure, and bundled resources.