fetch-library-docs

fetch-library-docs is a skill for Claude Code from panaversity/claude-code-skills-lab. It costs 116 tokens per session (980 once invoked), scanned A, original, no licence file.

A tool for retrieving official documentation for software libraries and frameworks such as React, Next.js, Prisma, FastAPI, Express, Tailwind, and MongoDB.

In plain words
What is it for?
Use it when implementing features with library APIs, investigating library-specific errors, or troubleshooting configuration.
Why use it?
It reduces the time and context needed to find the relevant parts of technical documentation while building or debugging software.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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/panaversity/claude-code-skills-lab/fetch-library-docs
Any agent
npx skills add panaversity/claude-code-skills-lab --skill fetch-library-docs
Clone the repo
git clone --depth 1 https://github.com/panaversity/claude-code-skills-lab

Made for: Claude Code.

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 fetch-library-docs

README.md
[![agentmods](https://agentmods.dev/badge/skills/panaversity/claude-code-skills-lab/fetch-library-docs.svg)](https://agentmods.dev/skills/panaversity/claude-code-skills-lab/fetch-library-docs)
Your own site
<a href="https://agentmods.dev/skills/panaversity/claude-code-skills-lab/fetch-library-docs"><img src="https://agentmods.dev/badge/skills/panaversity/claude-code-skills-lab/fetch-library-docs.svg" alt="Measured on agentmods" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 980 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00116 $0.00980
Opus 5 $0.00058 $0.00490
Sonnet 5 $0.00023 $0.00196
Haiku 4.5 $0.00012 $0.00098

Measured 6d ago against content hash ebe15d793a1e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

fetch-library-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 6d ago.

The scan reads SKILL.md. This mod also ships 19 executable files (scripts/detect-python.sh, scripts/extract-apidoc.sh, scripts/extract-code-blocks.sh, …), 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/fetch-library-docs/SKILL.md · 116 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 6d ago First seen · 116 lines · 116 tokens per session scan A ebe15d793a1e

Subscribe to this mod's changes

fetch-library-docs is a skill published in the GitHub repository panaversity/claude-code-skills-lab (56 stars, last pushed 6mo ago), with no licence file. It adds 116 tokens to every session and 980 once invoked, about $0.0006 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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