rosetta

Generate and maintain a Keep a Changelog–style CHANGELOG.md from git history.

Draft a clear, reviewer-friendly pull request description from the staged diff and commit history.

Produce a focused test plan for a change — what to test, at which level, and the edge cases worth covering.

Scan a diff or files for committed secrets and walk through safe remediation.

Lint and harden shell scripts with shellcheck and robust-bash conventions.

Scaffold a spec-compliant catalog plugin — manifest, README, and component stubs in the canonical Claude Code format.

Write trigger-quality SKILL.md files — descriptions that reliably fire and bodies built for progressive disclosure.

Validate a plugin against the catalog quality bar and register it in marketplace.json with a valid category.

Write and review idiomatic modern Python — typing, data modeling, control flow, and the anti-patterns to avoid.

Write and review idiomatic TypeScript — use the type system well and avoid the escape hatches that defeat it.

Write and review idiomatic Ruby — Enumerable-driven, expression-oriented style and the loops and nil-checks it replaces.

Expert guidance for using a type system (RBS or Sorbet) with Ruby.

Write and review effective LLM prompts — specificity, structure, examples, output contracts, and the failure modes to design against.

Design evals for LLM features — representative test sets, pass criteria, and regression checks so you know when output is good.

Design what an agent remembers — what to persist, how to retrieve it, and how to compact context so it stays within budget.