ponytail-review skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, same audit grade.
ponytail-review is agent-read markdown (skill) from kunolu/640-skills: Code review focused exclusively on over-engineering. Finds what to delete: reinvented standard library, unneeded dependencies, speculative abstractions, dead flexibility. One line per finding: location, what to cut, what replaces it. Use when the user says "review for over-engineering", "what can we delete", "is this over-engineered", "simplify review", or invokes /ponytail-review. Complements correctness-focused review, this one only hunts complexity..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
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 `L<line>: <tag> <what>. <replacement>.`, or `<file>:L<line>: ...` for multi-file diffs. 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. - `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?" ✅ `L12-38: stdlib: 27-line validator class. "@" in email, 1 line, real validation is the confirmation mail.` ✅ `L4: native: moment.js imported for one format call. Intl.DateTimeFormat, 0 deps.` ✅ `repo.py:L88: yagni: AbstractRepository with one implementation. Inline it until a second one exists.` …
Read the whole file at its exact version.
How to install
mdr add kunolu/640-skills/ponytail-review@git:20260826.2c5e330mdr add kunolu/640-skills/ponytail-review@sha256:40df33b58fc6ef88Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_u7o4lj7mwfqeouu2)
0 badge views in 30 days
Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2383 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
kunolu/640-skills · 113 stars · license Apache-2.0 · pushed 2026-09-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_u7o4lj7mwfqeouu2 GET https://markdownregistry.com/api/v1/resolve?ref=kunolu/640-skills/ponytail-review GET https://markdownregistry.com/api/v1/blob/40df33b58fc6ef889b93585733feb9566b76e9586efa7f376785c1e995197ac0
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
More from kunolu/640-skills
Every file in kunolu/640-skills