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.
npx skills add pdugan20/claudelint --skill format-ccgit clone --depth 1 https://github.com/pdugan20/claudelintWrote 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/pdugan20/claudelint/format-cc)<a href="https://agentmods.dev/skills/pdugan20/claudelint/format-cc"><img src="https://agentmods.dev/badge/skills/pdugan20/claudelint/format-cc.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00062 | $0.00955 |
| Opus 5 | $0.00031 | $0.00477 |
| Sonnet 5 | $0.00012 | $0.00191 |
| Haiku 4.5 | $0.00006 | $0.00096 |
Grade A, and why
format-cc 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Format Claude Code Files
Runs claudelint format to format Claude Code project files using industry-standard tools:
- markdownlint - Markdown structure and formatting
- prettier - Code formatting for markdown, JSON, YAML
- shellcheck - Shell script analysis
Usage
claudelint format --fix $ARGUMENTS
Modes
Fix Mode (default)
Auto-fix formatting issues:
claudelint format --fix
Or simply:
claudelint format
Check Mode
Check formatting without making changes:
claudelint format --check
Useful for CI/CD to verify formatting.
Options
--check- Check formatting without making changes--fix- Fix formatting issues (default)--verbose- Show detailed command output
What Gets Formatted
Markdown Files
CLAUDE.md.claude/**/*.md
Tools:
- markdownlint - MD041, MD031, MD032, MD040, MD022
- prettier - Line wrapping, indentation
JSON Files
.claude/**/*.json.mcp.json.claude-plugin/**/*.json
Tool: prettier
YAML Files
.claude/**/*.{yaml,yml}
Tool: prettier
Shell Scripts
.claude/**/*.sh.claude/hooks/*
Tool: shellcheck (analysis only, no auto-fix)
Examples
Format all Claude files:
claudelint format --fix
Check formatting in CI:
claudelint format --check
Verbose output:
claudelint format --fix --verbose
Required Tools
Install formatting tools globally or in your project:
markdownlint
npm install -g markdownlint-cli
# or
npm install --save-dev markdownlint-cli
prettier
npm install -g prettier
# or
npm install --save-dev prettier
shellcheck
brew install shellcheck
# or
npm install -g shellcheck
Configuration
The format command automatically scopes to Claude files only, so it won't conflict with your project's existing formatters.
Customizing Markdownlint
Create .markdownlint.json in your project root:
{
"default": true,
"MD013": false,
"MD033": {
"allowed_elements": ["kbd", "br"]
},
"MD041": true,
"MD031": true,
"MD032": true,
"MD040": true,
"MD022": true
}
What ships with it
2 files 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.
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.
- 7d ago First seen · 212 lines · 62 tokens per session scan A 2826ab53f540
format-cc is a skill published in the GitHub repository pdugan20/claudelint (12 stars, last pushed yesterday), licensed MIT. It adds 62 tokens to every session and 955 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.
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