get-api-docs

get-api-docs is a skill for Claude Code, Codex from naga-k/chub-claude-plugin. It costs 94 tokens per session (985 once invoked), scanned A, original, MIT.

A skill for fetching current documentation for third-party libraries, software development kits, and APIs before writing code that uses them. It uses the chub command-line tool to find and retrieve those documents.

In plain words
What is it for?
Use it to find documentation, read language-specific examples, and record useful discoveries such as version quirks or workarounds.
Why use it?
It helps prevent incorrect code based on outdated or remembered API details.

Skill for Claude CodeCodex

Part of the chub plugin — 1 skill, 1 hook 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/naga-k/chub-claude-plugin/get-api-docs
Any agent
npx skills add naga-k/chub-claude-plugin --skill get-api-docs
Clone the repo
git clone --depth 1 https://github.com/naga-k/chub-claude-plugin

Made for: Claude Code, Codex.

Or install chub, the plugin that ships this one along with the rest of its 1 skill, 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 get-api-docs

README.md
[![agentmods](https://agentmods.dev/badge/skills/naga-k/chub-claude-plugin/get-api-docs.svg)](https://agentmods.dev/skills/naga-k/chub-claude-plugin/get-api-docs)
Your own site
<a href="https://agentmods.dev/skills/naga-k/chub-claude-plugin/get-api-docs"><img src="https://agentmods.dev/badge/skills/naga-k/chub-claude-plugin/get-api-docs.svg" alt="Measured on agentmods" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 985 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 $0.00094 $0.00985
Opus 5 $0.00047 $0.00492
Sonnet 5 $0.00019 $0.00197
Haiku 4.5 $0.00009 $0.00098

Measured 4d ago against content hash 288954663c77, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

get-api-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 4d 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.

skills/get-api-docs/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Get API Docs via chub

When you need documentation for a library or API, fetch it with chub via npx rather than guessing from training data. This gives you the current, correct API.

Always use npx --yes @aisuite/chub to run chub — this ensures it's available without requiring a global install.

Step 1 — Find the right doc ID

npx --yes @aisuite/chub search "<library name>" --json

Pick the best-matching id from the results (e.g. openai/chat, anthropic/sdk, stripe/api). If nothing matches, try a broader term.

Step 2 — Fetch the docs

npx --yes @aisuite/chub get <id> --lang py    # or --lang js, --lang ts

Omit --lang if the doc has only one language variant — it will be auto-selected.

Step 3 — Use the docs

Read the fetched content and use it to write accurate code or answer the question. Do not rely on memorized API shapes — use what the docs say.

Step 4 — Annotate what you learned

After completing the task, if you discovered something not in the doc — a gotcha, workaround, version quirk, or project-specific detail — save it so future sessions start smarter:

npx --yes @aisuite/chub annotate <id> "Webhook verification requires raw body — do not parse before verifying"

Annotations are local, persist across sessions, and appear automatically on future chub get calls. Keep notes concise and actionable. Don't repeat what's already in the doc.

Step 5 — Give feedback

Always rate the doc after using it. This helps authors fix outdated or incorrect docs and prioritize improvements. Include a label and a brief comment explaining what was good or what needs fixing — specific feedback is the most valuable.

npx --yes @aisuite/chub feedback <id> up --label accurate "Clear examples, models are current"
npx --yes @aisuite/chub feedback <id> down --label outdated "Lists gpt-4o as latest but gpt-5.4 is out"

Available labels: outdated, inaccurate, incomplete, wrong-examples, wrong-version, poorly-structured, accurate, well-structured, helpful, good-examples.

Read the full file on GitHub · 94 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. 4d ago First seen · 94 lines · 94 tokens per session scan A 288954663c77

Subscribe to this mod's changes

get-api-docs is a skill published in the GitHub repository naga-k/chub-claude-plugin (2 stars, last pushed 5mo ago), licensed MIT. It adds 94 tokens to every session and 985 once invoked, about $0.0005 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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