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 holon-run/uxc --skill context7-mcp-skillgit clone --depth 1 https://github.com/holon-run/uxcWrote 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/holon-run/uxc/context7-mcp-skill)<a href="https://agentmods.dev/skills/holon-run/uxc/context7-mcp-skill"><img src="https://agentmods.dev/badge/skills/holon-run/uxc/context7-mcp-skill.svg" alt="Measured on agentmods" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00543 |
| Opus 5 | $0.00021 | $0.00271 |
| Sonnet 5 | $0.00008 | $0.00109 |
| Haiku 4.5 | $0.00004 | $0.00054 |
Grade A, and why
context7-mcp-skill 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 8d 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.
What it actually says
Context7 Skill
Use this skill to query library documentation and code examples.
Prerequisites
uxcskill is installed (see uxc skill for installation)- Network access to
https://mcp.context7.com/mcp
Core Workflow
-
Use fixed link command by default:
command -v context7-mcp-cli- If missing, create it:
uxc link context7-mcp-cli mcp.context7.com/mcp context7-mcp-cli -h- If command conflict is detected and cannot be safely reused, stop and ask skill maintainers to pick a different fixed command name.
-
Resolve a library name to get library ID:
context7-mcp-cli resolve-library-id libraryName=react query='useState hook'
-
Query documentation:
context7-mcp-cli query-docs libraryId=/reactjs/react.dev query='how to use useState'
Available Tools
- resolve-library-id: Resolve a package/library name to Context7 library ID
- query-docs: Query documentation and code examples for a specific library
Usage Examples
Find React documentation
# First resolve the library
context7-mcp-cli resolve-library-id libraryName=react query='React useState hook'
Query specific documentation
context7-mcp-cli query-docs '{"libraryId":"/reactjs/react.dev","query":"how to use useEffect"}'
Query Node.js documentation
context7-mcp-cli resolve-library-id libraryName=node query='file system'
Notes
- Requires library name first, then use the returned libraryId for queries
- Context7 provides version-specific, up-to-date documentation
- Supports npm packages, Python libraries, and more
context7-mcp-cli <operation> ...is equivalent touxc mcp.context7.com/mcp <operation> ....- If link setup is temporarily unavailable, use direct
uxc mcp.context7.com/mcp ...calls as fallback.
Reference Files
- Workflow details:
references/usage-patterns.md
What ships with it
3 files 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.
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.
- 8d ago First seen · 68 lines · 42 tokens per session scan A d55e087aff28
context7-mcp-skill is a skill published in the GitHub repository holon-run/uxc (113 stars, last pushed 1mo ago), licensed MIT. It adds 42 tokens to every session and 543 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 2026-08-30.
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