metaxy: Skill for Claude Code

.claude/skills/docs-page-frontmatter/SKILL.md

docs-page-frontmatter is a skill for Claude Code from anam-org/metaxy. It costs 21 tokens per session (751 once invoked), scanned A, original, Apache-2.0.

A guide for writing YAML metadata at the top of documentation pages, including their titles and descriptions.

In plain words
What is it for?
Use it when adding or reviewing front matter in MkDocs documentation.
Why use it?
It helps documentation pages produce clear labels and summaries for readers and shared links.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is anam-org/metaxy's own configuration. It tells Claude Code how to work on metaxy 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 metaxy configures →

Part of the metaxy plugin — 8 skills, 5 agents, 1 hook shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to anam-org/metaxy. 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/anam-org/metaxy/main/.claude/skills/docs-page-frontmatter/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/anam-org/metaxy

Made for: Claude Code.

Or install metaxy, the plugin that ships this one along with the rest of its 8 skills, 5 agents, 1 hook.

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 docs-page-frontmatter

README.md
[![agentmods](https://agentmods.dev/badge/skills/anam-org/metaxy/docs-page-frontmatter/github.svg)](https://agentmods.dev/skills/anam-org/metaxy/docs-page-frontmatter)
Your own site
<a href="https://agentmods.dev/skills/anam-org/metaxy/docs-page-frontmatter"><img src="https://agentmods.dev/badge/skills/anam-org/metaxy/docs-page-frontmatter/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 docs-page-frontmatter

Your own site · 80×15
<a href="https://agentmods.dev/skills/anam-org/metaxy/docs-page-frontmatter"><img src="https://agentmods.dev/badge/skills/anam-org/metaxy/docs-page-frontmatter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 751 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00021 $0.00751
Opus 5 $0.00010 $0.00376
Sonnet 5 $0.00004 $0.00150
Haiku 4.5 $0.00002 $0.00075

Measured 7d ago against content hash 8d61e763ad11, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

docs-page-frontmatter 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.

.claude/skills/docs-page-frontmatter/SKILL.md · 106 lines

How it starts

The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Documentation Page Front Matter

This skill guides writing YAML front matter for mkdocs-material documentation pages. Front matter controls social card generation and page metadata.

Front Matter Format

---
title: "Page Title"
description: "Brief description of the page."
---

Title Guidelines

  • Use descriptive titles that provide context
  • Include the subject matter (e.g., "LanceDB Configuration" not just "Configuration")
  • Keep titles concise but informative
  • For API reference pages: "[Subject] API" or "API reference for [Subject]"
  • For configuration pages: "[Subject] Configuration"
  • For index pages: Use the section name (e.g., "Integrations", "User Guide")

Description Guidelines

DO:

  • Briefly summarize what the page covers
  • Keep descriptions general and conceptual
  • Use simple, direct language
  • Focus on the page content, not the subject itself

DON'T:

  • Enumerate specific implementation details that may become outdated
  • List specific technologies, databases, or tools unless the page is specifically about one
  • Prescribe use cases (avoid "for local development", "ideal for production", etc.)
  • Use verbose explanations
  • Describe what the subject does (describe the page instead)

Examples

Good Descriptions

# API reference page
description: "API reference for DuckDBMetadataStore."

# Configuration page
description: "Configuration options for ClickHouseMetadataStore."

# Concept page
description: "How Metaxy calculates and tracks versions."

# Index page
description: "Available metadata store backends for Metaxy."

# Integration overview
description: "Dagster integration for Metaxy."

# Guide page
description: "Defining dependencies between features."

Bad Descriptions (Avoid These)

# Too verbose, lists specific details
description: "Connect Metaxy with orchestrators like Dagster, databases like ClickHouse and BigQuery, and plugins for SQLModel and SQLAlchemy."

# Prescribes use case
description: "Use DuckDB as a fast embedded analytical database for local development and testing with Metaxy."

# Enumerates implementation details
description: "Configuration options for DuckDBMetadataStore including database path, extensions, and DuckLake settings."

# Describes the subject, not the page
description: "A pluggable metadata layer for ML pipelines that tracks feature versions, dependencies, and data lineage."

Read the full file on GitHub · 106 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. 7d ago First seen · 106 lines · 21 tokens per session scan A 8d61e763ad11

Subscribe to this mod's changes

docs-page-frontmatter is a skill published in the GitHub repository anam-org/metaxy (119 stars, last pushed 18d ago), licensed Apache-2.0. It adds 21 tokens to every session and 751 once invoked, about $0.0001 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 2026-09-01.

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