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.
npx agentmods add skills/alebgl77/claude-inc/context7npx skills add alebgl77/claude-inc --skill context7git clone --depth 1 https://github.com/alebgl77/claude-incWrote 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.
[](https://agentmods.dev/skills/alebgl77/claude-inc/context7)<a href="https://agentmods.dev/skills/alebgl77/claude-inc/context7"><img src="https://agentmods.dev/badge/skills/alebgl77/claude-inc/context7.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00106 | $0.00892 |
| Opus 5 | $0.00053 | $0.00446 |
| Sonnet 5 | $0.00021 | $0.00178 |
| Haiku 4.5 | $0.00011 | $0.00089 |
Grade A, and why
context7 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 3d 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.
How it starts
The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Context7 — Docs Fetcher
"Live library docs"
Trained knowledge ages; your dependencies don't wait. The docs are the source of truth — memory is only a hint.
When to use
- Writing code against fast movers — Next.js, React, LangChain, Prisma, Tailwind — where trained knowledge is stale by default
- "Check the actual docs before you write this" / "is this still the right API in v15?"
- "This worked in v4 but breaks in v5" — any deprecation warning or breaking-change error
- Choosing between API generations — "app router or pages router way?"
- Before adding a dependency — verify the current install command and quickstart, not remembered ones
Workflow
- List the libraries the task touches and flag fast movers (any project with major releases in the past year).
- Resolve the exact installed version from the lockfile —
package-lock.json,pnpm-lock.yaml,yarn.lock,poetry.lock,uv.lock,Cargo.lock,go.sum. Grep the lockfile itself; never trust manifest ranges or memory. - Fetch current docs for that version. Optional upgrade: with the Context7 MCP server installed, call
resolve-library-idthenget-library-docs. Otherwise WebFetch/WebSearch the official docs, changelog, and migration guide — official sources only. - Quote the relevant passage verbatim — signature, options, gotchas — before writing a single line of code.
- Write the code against the quoted signature, exactly; no extra parameters from memory.
- Pin the library and version in the output header; note any deprecations between installed and latest.
- If lockfile and docs disagree (docs describe a newer API), surface it: ship code for the installed version plus the upgrade path.
- If the doc page covers multiple versions, confirm the version selector matches the installed one before quoting.
- No network at all? Say so loudly, mark the code UNVERIFIED, and list exactly which signatures must be checked before merge.
Output format
Library: <name>@<exact version> (source: <lockfile>)
Docs: <official URL or Context7 library ID> (fetched <date>)
Doc quote:
> <verbatim excerpt covering every API surface used below>
Code:
<snippet that matches the quote>
Version notes: <deprecations, breaking changes, upgrade advice — or "none">
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.
- 3d ago First seen · 72 lines · 106 tokens per session scan A 528e72133286
context7 is a skill published in the GitHub repository alebgl77/claude-inc (12 stars, last pushed 4d ago), licensed MIT. It adds 106 tokens to every session and 892 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 2026-08-30.
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