Deep review

Run the /review-diff skill's flow with a bigger lens set. If review-diff isn't available, tell the user and stop.

At its Lenses step, read the change set and decide which themes below are relevant. The lens set is:

• review-diff's standard lenses, on their usual tiers, by their absolute paths in review-diff's directory;
• each theme under Always, and each theme under When the diff matches that fits the diff, on the cheap tier. Pass the theme file's absolute path as the lens.

Everything else follows review-diff: models, launch, check, triage, fix, and report. Theme reviewers on the cheap tier are noisy, so the check step matters most for them.

Always

• Naming — identifiers
• Style — dead weight, constants, order, locality
• Comments — comments, docs, stale nearby comments

When the diff matches

• API Shape — public functions, types, endpoints, events, persisted formats
• Architecture — modules, layers, where state or effects live
• Change Scope — mixed features, refactors, or cleanups in one PR
• Concurrency — shared mutable state, threads/coroutines, timers
• Coupling — module boundaries, wiring, cross-component APIs
• Dependencies — manifests, lockfiles, vendored or generated code, new libraries
• CI locally — CI, build, lint, or codegen steps
• Errors — new or changed failure paths, error types, panics
• Invariants — validation, state transitions, persistence, aggregates
• Observability — logs, metrics, journals, or swallowed failures
• Tests — tests, fixtures, doubles, or test helpers