Add ponytail, ponytail-audit, ponytail-review skills

2026-06-18 10:27:55 +01:00
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+---
+name: ponytail-audit
+description: >
+  Whole-repo audit for over-engineering. Like ponytail-review, but scans the
+  entire codebase instead of a diff: a ranked list of what to delete, simplify,
+  or replace with stdlib/native equivalents. Use when the user says "audit this
+  codebase", "audit for over-engineering", "what can I delete from this repo",
+  "find bloat", "ponytail-audit", or "/ponytail-audit". One-shot report, does
+  not apply fixes.
+---
+
+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.