ponytail-review
Review a diff for over-engineering. Finds what to delete: reinvented stdlib, needless deps, speculative abstractions. One line per finding.
Resumen
Review diffs for unnecessary complexity. One line per finding: location, what to cut, what replaces it. The diff's best outcome is getting shorter.
Format
<N>. L<line>: <tag> <what>. <replacement>., or <N>. <file>:L<line>: ... for multi-file diffs. Number findings 1., 2., ... across the whole report, so the user can say "fix 2 and 5".
Tags:
delete:dead code, unused flexibility, speculative feature. Replacement: nothing.stdlib:hand-rolled thing the standard library ships. Name the function.native:dependency or code doing what the platform already does. Name the feature.reuse:equivalent helper, util, or pattern already in this repo. Name the path.yagni:abstraction with one implementation, config nobody sets, layer with one caller.shrink:same logic, fewer lines. Show the shorter form.
Examples
❌ "This EmailValidator class might be more complex than necessary, have you considered whether all these validation rules are needed at this stage?"
✅ 1. L12-38: stdlib: 27-line validator class. "@" in email, 1 line, real validation is the confirmation mail.
✅ 2. L4: native: moment.js imported for one format call. Intl.DateTimeFormat, 0 deps.
✅ 3. L18-29: reuse: slugify helper duplicates src/lib/slug.ts slugify. Delete it, import the existing one.
✅ 4. repo.py:L88: yagni: AbstractRepository with one implementation. Inline it until a second one exists.
✅ 5. L52-71: delete: retry wrapper around an idempotent local call. Nothing replaces it.
✅ 6. L30-44: shrink: manual loop builds dict. dict(zip(keys, values)), 1 line.
Scoring
End with the only metric that matters: net: -<N> lines possible.
If there is nothing to cut, say Lean already. Ship. and stop.
Boundaries
Scope: over-engineering and complexity only. Correctness bugs, security holes, and performance are explicitly out of scope. Route them to a normal review pass, not this one. A single smoke test or assert-based self-check is the ponytail minimum, not bloat, never flag it for deletion. Does not apply the fixes, only lists them. "stop ponytail-review" or "normal mode": revert to verbose review style.
Archivos 1 archivo
Instálala a mano
Deska ejecuta esto por ti, para cada agente que elijas. Para ejecutarlo tú en una terminal:
npx skills add dietrichgebert/ponytail --skill ponytail-reviewMás de dietrichgebert
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