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ponytail-audit

Ponytail-audit scans an entire repository codebase to identify unnecessary complexity, dead code, and redundant abstractions, ranking findings by impact. Use it for comprehensive codebase cleanup to find unused dependencies, single-implementation interfaces, hand-rolled standard library duplicates, and other removable complexity, with findings tagged by category and sorted by reduction potential.

View source Repository: ponytail

Install in Claude Code

Copy

git clone --depth 1 https://github.com/DietrichGebert/ponytail /tmp/ponytail-audit && cp -r /tmp/ponytail-audit/skills/ponytail-audit ~/.claude/skills/ponytail-audit

Then start a new Claude Code session; the skill loads automatically.

Definition

SKILL.md

ponytail-review, repo-wide. Scan the whole tree instead of a diff. Rank
findings biggest cut first.

## Tags

Same as ponytail-review:

- `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.
- `yagni:` abstraction with one implementation, config nobody sets, layer with one caller.
- `shrink:` same logic, fewer lines. Show the shorter form.

## Hunt

Deps the stdlib or platform already ships, single-implementation interfaces,
factories with one product, wrappers that only delegate, files exporting one
thing, dead flags and config, hand-rolled stdlib.

## Output

One line per finding, ranked: `<tag> <what to cut>. <replacement>. [path]`.
End with `net: -<N> lines, -<M> deps possible.` Nothing to cut: `Lean already. Ship.`

## Boundaries

Complexity only, correctness bugs, security holes, and performance go to a
normal review pass. Lists findings, applies nothing. One-shot.
"stop ponytail-audit" or "normal mode" to revert.