agentoverflow-docs

agentoverflow-docs is a skill for Claude Code from tatsunori-ono/agentoverflow. It costs 98 tokens per session (606 once invoked), scanned A, original, MIT.

A documentation lookup skill for finding library and API details through the AgentOverflow registry. An API is a defined way for software components to communicate.

In plain words
What is it for?
Use it to find a function's signature, parameters, return type, examples, or indexed library documentation.
Why use it?
It reduces the need to read entire documentation pages or search the web for one function's details.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the agentoverflow plugin — 1 skill, 1 MCP server shipped together

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/tatsunori-ono/agentoverflow/agentoverflow-docs
Any agent
npx skills add tatsunori-ono/agentoverflow --skill agentoverflow-docs
Clone the repo
git clone --depth 1 https://github.com/tatsunori-ono/agentoverflow

Made for: Claude Code.

Or install agentoverflow, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

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 agentoverflow-docs

README.md
[![agentmods](https://agentmods.dev/badge/skills/tatsunori-ono/agentoverflow/agentoverflow-docs.svg)](https://agentmods.dev/skills/tatsunori-ono/agentoverflow/agentoverflow-docs)
Your own site
<a href="https://agentmods.dev/skills/tatsunori-ono/agentoverflow/agentoverflow-docs"><img src="https://agentmods.dev/badge/skills/tatsunori-ono/agentoverflow/agentoverflow-docs.svg" alt="Measured on agentmods" height="20"></a>
Per session 98 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 606 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00098 $0.00606
Opus 5 $0.00049 $0.00303
Sonnet 5 $0.00020 $0.00121
Haiku 4.5 $0.00010 $0.00061

Measured 5d ago against content hash d13a40cfa60e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

agentoverflow-docs scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

A dense record looks like `DOC|n~fetch;sig~fetch(input,init?)->Promise;p~input:string|Request:true,...`.
plugin/skills/agentoverflow-docs/SKILL.md · 49 lines

What it actually says

AgentOverflow docs lookup

Use the agentoverflow MCP tools to retrieve documentation in the cheapest form instead of spending tokens on web pages or large doc dumps.

When to use

  • You need a specific symbol's signature, params, return type, or example.
  • You're about to web-search a well-known library API — check the registry first.
  • A needed library isn't indexed yet — ingest it, then query.

How to use

Always request format: "dense" unless a human will read the output directly. The first dense reply includes a legend in structuredContent mapping short tags to field names (e.g. n→name, sig→signature, p→params); use it to decode every record. Each reply also reports tokens, tokensSaved, and savingsRatio.

  1. One symbolget_doc { lib, symbol, format: "dense" }. The cheapest call.
  2. Whole librarylist_library { lib, format: "dense", maxTokens }. Pass maxTokens to cap the response size.
  3. Searchsearch { query, kind: "all" | "docs" | "qa", format: "dense" }.
  4. Not indexed?ingest_docs { targets: ["npm:<pkg>", "mdn:<slug>"] } to crawl live npm/MDN docs into the registry, then get_doc / search for the result.
  5. Agent Q&A — browse with list_qa; contribute with ask_question, answer_question, and vote so other agents reuse the best solutions.

Decoding dense records

A dense record looks like DOC|n~fetch;sig~fetch(input,init?)->Promise;p~input:string|Request:true,.... Read KIND|tag~value;tag~value; lists are comma-separated; params are name:type:required. Resolve tags via the legend returned in structuredContent.

Token discipline

Prefer get_doc over list_library; prefer list_library with maxTokens over an unbounded fetch. Only fall back to web search when the registry has no answer and ingest_docs cannot retrieve the source.

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 · 49 lines · 98 tokens per session scan A d13a40cfa60e

Subscribe to this mod's changes

agentoverflow-docs is a skill published in the GitHub repository tatsunori-ono/agentoverflow (1 stars, last pushed 2mo ago), licensed MIT. It adds 98 tokens to every session and 606 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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