context7

A fallback service for retrieving current documentation, API references, coding patterns, and examples for software libraries and frameworks.

In plain words
What is it for?
It is for looking up documentation and examples for tools such as React, Next.js, Vue, Django, and Laravel.
Why use it?
It helps answer library questions when the Context7 MCP server, a tool connection for fetching documentation, is unavailable or not configured.

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

Made for: Claude Code, Codex.

Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 754 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 $0.00086 $0.00754
Opus 5 $0.00043 $0.00377
Sonnet 5 $0.00017 $0.00151
Haiku 4.5 $0.00009 $0.00075

Measured yesterday against content hash 820a72ea9bc3, 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/context7.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.

Makes network callslowCapability

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

compatibility: "Requires curl or fetch, jq."
skills/context7/SKILL.md · 92 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

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 92 lines · 86 tokens per session scan A 820a72ea9bc3

Subscribe to this mod's changes

context7 is a skill published in the GitHub repository netresearch/context7-skill (57 stars, last pushed 3d ago), with no licence file. It adds 86 tokens to every session and 754 once invoked, about $0.0004 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 2026-08-30.

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