context7

A tool for retrieving current documentation and code examples for software libraries and frameworks. Libraries and frameworks are reusable building blocks developers add to their programs.

In plain words
What is it for?
Use it to look up library documentation, find examples, verify API usage, or check information that may have changed.
Why use it?
It helps check how an API should be used and avoids relying on documentation that may be outdated.

Skill for Claude CodeCodex

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/eddmann/agent-toolkit/context7
Any agent
npx skills add eddmann/agent-toolkit --skill context7
Clone the repo
git clone --depth 1 https://github.com/eddmann/agent-toolkit

Made for: Claude Code, Codex.

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 413 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00046 $0.00413
Opus 5 $0.00023 $0.00206
Sonnet 5 $0.00009 $0.00083
Haiku 4.5 $0.00005 $0.00041

Measured yesterday against content hash bf3ca8ddbfa9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

context7 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 yesterday.

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.

curl -s ${CONTEXT7_API_KEY:+-H "x-api-key: $CONTEXT7_API_KEY"} "https://context7.com/api/v2/libs/search?libraryName=LIBRARY_NAME&query=TOPIC" | jq '.results[:3]'
skills/context7/SKILL.md · 46 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. yesterday First seen · 46 lines · 46 tokens per session scan A bf3ca8ddbfa9

Subscribe to this mod's changes

context7 is a skill published in the GitHub repository eddmann/agent-toolkit (2 stars, last pushed 4mo ago), with no licence file. It adds 46 tokens to every session and 413 once invoked, about $0.0002 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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