Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/MuhammadUsmanGM/claude-code-best-practicesnpx agentmods add skills/muhammadusmangm/claude-code-best-practices/lint-docsWrote 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.
[](https://agentmods.dev/skills/muhammadusmangm/claude-code-best-practices/lint-docs)<a href="https://agentmods.dev/skills/muhammadusmangm/claude-code-best-practices/lint-docs"><img src="https://agentmods.dev/badge/skills/muhammadusmangm/claude-code-best-practices/lint-docs/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.
<a href="https://agentmods.dev/skills/muhammadusmangm/claude-code-best-practices/lint-docs"><img src="https://agentmods.dev/badge/skills/muhammadusmangm/claude-code-best-practices/lint-docs.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 5.1 | $0.00055 | $0.00394 |
| Opus 5.5 | $0.00022 | $0.00158 |
| Sonnet 5.5 | $0.00011 | $0.00079 |
| Haiku 4.5 | $0.00006 | $0.00039 |
Grade A, and why
lint-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 1mo 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.
What it actually says
Lint Docs
Run the same three checks CI runs and report pass/fail per check.
Steps
- shellcheck — find every
.shunder the repo and runshellcheckon it.find . -name '*.sh' -not -path './.git/*' -print0 | xargs -0 shellcheck - markdownlint — run
markdownlintonREADME.md,CONTRIBUTING.md,CHANGELOG.md, and everything underguides/,examples/,plugins/,tools/hooks/. Use.markdownlint.jsonat repo root. - lint-claude-md — run
bash tools/lint-claude-md.shagainst everyexamples/claude-md-*.mdtemplate and the repo's ownCLAUDE.md.
Output
Print a single summary table, one row per check:
| Check | Status | Details |
|---|
If any check fails, print the first 20 lines of its output below the table and stop. Do not try to auto-fix unless the user asks.
Rules
- If
shellcheckormarkdownlintisn't installed, say so and skip that check — don't silently pass. - Do not modify files. This skill is diagnostic only.
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.
- 1mo ago First seen · 38 lines · 55 tokens per session scan A be23428c6714
lint-docs is a skill published in the GitHub repository MuhammadUsmanGM/claude-code-best-practices (98 stars, last pushed yesterday), licensed MIT. It adds 55 tokens to every session and 394 once invoked, about $0.0002 per session on Opus 5.5. 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.
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