diagnose

Keep a reviewable decision trail for long or unattended work: TSV log per decision, end audit, cross-model attention flags.

Set up fast hooks with the repo's own toolchain (oxlint/oxfmt, Biome, or Prettier), type checking, tests, and a token-size gate.

Parallel design bakeoff: N candidates on one brief, cross-judge, pick a base, graft the best parts.

Stress-test one component against worst-case content and states on a throwaway page, then report what visibly broke.

Adversarial multi-model review with rubric and bucketed verdict.

Eliminate repeated agent mistakes at the highest level that works: architecture, types, lint, tests, docs last.

Settle types, signatures, and module shape before code: ground, sketch twice, agree, implement, scrap when wrong.

Explain how a subsystem works: triage complexity, fan out explorers on 2 to 4 angles for complex scopes, synthesize into fixed sections.

Kill needless comments plus the dead code they protect, fix root causes in scope, encode real constraints as structure.

Build a throwaway prototype to answer a design question.

Shared vocabulary for designing deep modules.

Build and sharpen a project's domain model.