mcp

mcp is a skill for Claude Code, Codex from dhaupin/vant. It costs 8 tokens per session (294 once invoked), scanned A, original, MIT.

A server interface that lets AI agents use tools through a standard JSON-RPC connection. JSON-RPC is a structured way for one program to request actions from another.

In plain words
What is it for?
Use it to expose tools such as reading or editing files, running commands, browsing websites, searching, crawling, and extracting content for connected clients.
Why use it?
It gives different agent clients a consistent way to access files, terminal commands, browser actions, web search, and page extraction.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node bin/mcp.js.

Good fit Use it to expose tools such as reading or editing files, running…

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/dhaupin/vant
agentmods
npx agentmods add skills/dhaupin/vant/vant-skill-mcp

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for mcp

README.md
[![agentmods](https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-mcp.svg)](https://agentmods.dev/skills/dhaupin/vant/vant-skill-mcp)
Your own site
<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-mcp"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-mcp.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 294 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original 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 5.1 $0.00008 $0.00294
Opus 5 $0.00004 $0.00147
Sonnet 5 $0.00002 $0.00059
Haiku 4.5 $0.00001 $0.00029

Measured 6d ago against content hash 7b47f96110aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

mcp 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 6d 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.

models/public/skills/vant-skill-mcp/SKILL.md · 80 lines

What it actually says

MCP Server

Model Context Protocol server.


When To Use

  • Expose brain as tools
  • JSON-RPC interface
  • Agent integrations

What To Do

1. Start Server

node bin/mcp.js
# Exposes 21 tools

2. Tools Exposed

Tool What
read_file Read a file
write_file Write a file
edit_file Edit a file
run_terminal Execute command
browser_navigate Navigate URL
browser_click Click element
browser_type Type input
search Web search
extract Extract page
crawl Crawl site
think Think tool

3. Connect Clients

# OpenHands Cloud
# Use MCP server URL

# VS Code
# Add MCP server to config

Output

## MCP Server

| Tool | Status |
|------|--------|
| [tools] | [READY] |

### Connected Clients
- [list]

Role: MCP Server
Input: Brain files
Output: JSON-RPC tools

Brain as tools.

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. 6d ago First seen · 80 lines · 8 tokens per session scan A 7b47f96110aa

Subscribe to this mod's changes

mcp is a skill published in the GitHub repository dhaupin/vant (9 stars, last pushed 7d ago), licensed MIT. It adds 8 tokens to every session and 294 once invoked, about $0.0000 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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