mcp_diptrace: Skill for Claude Code

.agents/skills/ponytail-audit/SKILL.md

ponytail-audit is a skill for Claude Code, Codex from fireostendere/mcp_diptrace. It costs 105 tokens per session (402 once invoked), scanned A, a copy of ponytail-audit, Apache-2.0.

A one-time, whole-repository review for unnecessary complexity, such as dead code, duplicate standard-library features, and abstractions with only one use.

In plain words
What is it for?
Scanning a complete codebase, ranking possible removals or shorter replacements, and estimating potentially removable lines and dependencies.
Why use it?
It identifies code and dependencies that may be deleted or simplified, while leaving correctness, security, and performance review to other checks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is fireostendere/mcp_diptrace's own configuration. It tells Claude Code and Codex how to work on mcp_diptrace itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything mcp_diptrace configures →

Reuse

Borrowing it

Nothing to install: this file belongs to fireostendere/mcp_diptrace. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/fireostendere/mcp_diptrace/main/.agents/skills/ponytail-audit/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/fireostendere/mcp_diptrace

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ponytail-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/fireostendere/mcp_diptrace/ponytail-audit/github.svg)](https://agentmods.dev/skills/fireostendere/mcp_diptrace/ponytail-audit)
Your own site
<a href="https://agentmods.dev/skills/fireostendere/mcp_diptrace/ponytail-audit"><img src="https://agentmods.dev/badge/skills/fireostendere/mcp_diptrace/ponytail-audit/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ponytail-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/fireostendere/mcp_diptrace/ponytail-audit"><img src="https://agentmods.dev/badge/skills/fireostendere/mcp_diptrace/ponytail-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 402 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 89% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00105 $0.00402
Opus 5 $0.00053 $0.00201
Sonnet 5 $0.00021 $0.00080
Haiku 4.5 $0.00011 $0.00040

Measured 11d ago against content hash 5560b8e383db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ponytail-audit scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

89% identical to ponytail-audit — 5 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/ponytail-audit/SKILL.md · 42 lines

What it actually says

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

Scope: over-engineering and complexity only. Correctness bugs, security holes, and performance are explicitly out of scope. Route them to a normal review pass. Lists findings, applies nothing. One-shot. "stop ponytail-audit" or "normal mode" to revert.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 42 lines · 105 tokens per session scan A 5560b8e383db

Subscribe to this mod's changes

ponytail-audit is a skill published in the GitHub repository fireostendere/mcp_diptrace (22 stars, last pushed yesterday), licensed Apache-2.0. It adds 105 tokens to every session and 402 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 89% identical to ponytail-audit, differing in 5 lines, and is treated as a copy.