A documentation checker for README.md and the docs/ folder. It runs code examples, checks links and page anchors, and compares command-line examples with the built Ruby package.

Use it to review documentation changes, test code samples, verify links and anchors, and confirm command-line examples work.

It finds outdated instructions, broken links, and examples that no longer work before users encounter them. This is useful after documentation edits or before a release.

audit-docs — Skill by cardmagic

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add skills/cardmagic/classifier/audit-docs

Any agent

npx skills add cardmagic/classifier --skill audit-docs

Clone the repo

git clone --depth 1 https://github.com/cardmagic/classifier

Made for: Claude Code, Codex.

Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 690 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

Origin unknown No closer match found 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.

Model	Per session	Once invoked
Fable 5	$0.00068	$0.00690
Opus 5	$0.00034	$0.00345
Sonnet 5	$0.00014	$0.00138
Haiku 4.5	$0.00007	$0.00069

Measured yesterday against content hash 1b0406ea2567, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

audit-docs 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 yesterday.

The scan reads SKILL.md. This mod also ships 1 executable file (check_docs.rb), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/audit-docs/SKILL.md · 88 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

check_docs.rb 2.5 KB runs code

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.

yesterday First seen · 88 lines · 68 tokens per session scan A 1b0406ea2567

Subscribe to this mod's changes

audit-docs is a skill published in the GitHub repository cardmagic/classifier (741 stars, last pushed 3d ago), with no licence file. It adds 68 tokens to every session and 690 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Code review Git and workflow Testing classification classification-algorithm machine-learning machine-learning-algorithms machinelearning

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