doc-validate

doc-validate is a skill for Claude Code from esola-thomas/your-docs-mcp. It costs 36 tokens per session (683 once invoked), scanned A, original, MIT.

A documentation-validation skill that checks files against project rules for frontmatter, Markdown structure, links, and content organization. Frontmatter is the metadata block at the top of many Markdown files.

In plain words
What is it for?
Use it to validate documentation folders or selected files, checking titles, categories, tags, headings, code blocks, line length, and links.
Why use it?
It finds documentation problems before they reach a commit or publication workflow.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python scripts/validate_docs.py $ARGUMENTS.

Part of the docs-mcp plugin — 8 skills shipped together

Install

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.

Clone the repo
git clone --depth 1 https://github.com/esola-thomas/your-docs-mcp
agentmods
npx agentmods add skills/esola-thomas/your-docs-mcp/doc-validate

Made for: Claude Code.

Or install docs-mcp, the plugin that ships this one along with the rest of its 8 skills.

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 doc-validate

README.md
[![agentmods](https://agentmods.dev/badge/skills/esola-thomas/your-docs-mcp/doc-validate.svg)](https://agentmods.dev/skills/esola-thomas/your-docs-mcp/doc-validate)
Your own site
<a href="https://agentmods.dev/skills/esola-thomas/your-docs-mcp/doc-validate"><img src="https://agentmods.dev/badge/skills/esola-thomas/your-docs-mcp/doc-validate.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 683 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.00683
Opus 5 $0.00018 $0.00342
Sonnet 5 $0.00007 $0.00137
Haiku 4.5 $0.00004 $0.00068

Measured 5d ago against content hash b0d996d5f4d8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

doc-validate 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 5d 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.

docs-plugin/skills/doc-validate/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Validate Documentation

Validate documentation files against the project's documentation standards.

Instructions

  1. Determine scope:

    • If a specific path is given, validate that file/directory
    • If no path given, validate all docs in docs/ and example/
  2. Run the validation script if available:

python scripts/validate_docs.py $ARGUMENTS
  1. If script unavailable, perform manual checks:

Frontmatter Validation (Critical)

Check each markdown file for:

  • YAML frontmatter exists (between --- markers)
  • title field present and is a string
  • category field present and is a string
  • tags field present and is an array
  • order field present and is an integer

Markdown Formatting (Critical)

  • Only one H1 (#) per document
  • No skipped header levels (H1 -> H3 without H2)
  • All code blocks have language specified
  • Line length under 100 characters (except URLs, code, tables)

Content Structure (Warning)

  • H1 matches the title frontmatter field
  • Introduction present after H1
  • Table of contents for docs with >3 sections
  • Related resources section at end

Links (Critical)

  • Internal links use relative paths with .md extension
  • Internal links resolve to existing files
  • No "click here" link text

Output Format

Report findings in this format:

## Validation Results

### file-path.md
- [CRITICAL] Missing required frontmatter field: tags
- [WARNING] Line 45 exceeds 100 characters
- [INFO] Consider adding table of contents

### Summary
- Files checked: X
- Critical issues: X
- Warnings: X
- Passed: X

Severity Levels

Level Action Required Examples
CRITICAL Must fix before commit Missing frontmatter, broken links, no H1
WARNING Should fix Long lines, missing TOC
INFO Optional Unusual categories, style suggestions

Auto-Fix Mode

If --fix is specified, automatically fix:

  • Missing language tags on code blocks (add text)
  • Trailing whitespace
  • Missing blank lines around lists
  • Inconsistent list markers (convert to -)

Read the full file on GitHub · 103 lines

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. 5d ago First seen · 103 lines · 0 tokens per session scan A b0d996d5f4d8

Subscribe to this mod's changes

doc-validate is a skill published in the GitHub repository esola-thomas/your-docs-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 683 once invoked, about $0.0002 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 2026-08-31.

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