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 skills add julianobarbosa/claude-code-skills --skill looking-up-docsgit clone --depth 1 https://github.com/julianobarbosa/claude-code-skillsWrote 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/julianobarbosa/claude-code-skills/looking-up-docs)<a href="https://agentmods.dev/skills/julianobarbosa/claude-code-skills/looking-up-docs"><img src="https://agentmods.dev/badge/skills/julianobarbosa/claude-code-skills/looking-up-docs/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/julianobarbosa/claude-code-skills/looking-up-docs"><img src="https://agentmods.dev/badge/skills/julianobarbosa/claude-code-skills/looking-up-docs.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00042 | $0.00590 |
| Opus 5 | $0.00021 | $0.00295 |
| Sonnet 5 | $0.00008 | $0.00118 |
| Haiku 4.5 | $0.00004 | $0.00059 |
Grade A, and why
looking-up-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 9d 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Documentation Lookup with Context7
Context7 provides up-to-date, version-specific documentation and code examples directly from source libraries.
Why Context7
- Current APIs: No hallucinated or outdated patterns
- Version-specific: Gets docs for exact library versions
- Code examples: Real, working code from actual documentation
Workflow
- Resolve library ID:
mcp__context7__resolve-library-idwithlibraryName - Get documentation:
mcp__context7__get-library-docswithcontext7CompatibleLibraryIDandtopic
Modes
| Mode | Use For |
|---|---|
code |
API references, code examples (default) |
info |
Conceptual guides, architecture, tutorials |
Examples
# React hooks
resolve-library-id: "react"
get-library-docs: context7CompatibleLibraryID="/facebook/react", topic="hooks", mode="code"
# Next.js middleware
resolve-library-id: "next.js"
get-library-docs: context7CompatibleLibraryID="/vercel/next.js", topic="middleware"
# Go net/http
resolve-library-id: "go net/http"
get-library-docs: context7CompatibleLibraryID="/golang/go", topic="http server"
# Kubernetes API
resolve-library-id: "kubernetes"
get-library-docs: context7CompatibleLibraryID="/kubernetes/kubernetes", topic="deployment"
Tips
- Use
topicparameter to narrow results to specific features - Try
mode="info"for architectural questions - Paginate with
page=2,page=3if initial results insufficient
Gotchas
- Context7 query without version scoping returns hits across versions — Next.js 14 question can answer with Next.js 12 code. Always include the version.
- Library aliases (e.g.,
reactvs@types/react) may resolve to different libraries — use the full Context7 ID, not the npm name. - Stale cache: Context7 may have indexed a library version that's been yanked from npm — check upstream before trusting.
- Rate limits per API key per day — bursting on the free tier locks the key out until midnight UTC.
- No multi-version diff: Context7 doesn't surface what changed between versions; for migrations, dual-query and compare manually.
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.
- 9d ago First seen · 64 lines · 42 tokens per session scan A ef0b072f6c0c
looking-up-docs is a skill published in the GitHub repository julianobarbosa/claude-code-skills (10 stars, last pushed 13d ago), licensed MIT. It adds 42 tokens to every session and 590 once invoked, about $0.0002 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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