Agent skill

Native MCP

MCP server integration in Claude Code — add servers to .mcp.json, configure transports, and use their tools natively.

Install Native MCP

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/native-mcp .claude/skills/native-mcp && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .claude/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/native-mcp .agents/skills/native-mcp && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .agents/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/native-mcp .cursor/skills/native-mcp && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .cursor/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/AlexAI-MCP/hermes-CCC.git --path skills/native-mcp

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/native-mcp .gemini/skills/native-mcp && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .gemini/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/native-mcp .github/skills/native-mcp && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .github/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install AlexAI-MCP/hermes-CCC native-mcp --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/AlexAI-MCP/hermes-CCC.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/native-mcp .opencode/skills/native-mcp && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "native-mcp" agent skill from https://github.com/AlexAI-MCP/hermes-CCC/tree/master/skills/native-mcp into .opencode/skills/native-mcp/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "native-mcp", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: native-mcp
GitHub stars: 135
Token cost: ~936 tokens
SKILL.md length: 190 words
Files: 1
Skills in repo: 44
Repo updated: Apr 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

MCP server integration in Claude Code — add servers to .mcp.json, configure transports, and use their tools natively.

Works in 3 steps: Add server config to .mcp.json in your… → Restart Claude Code → The server's tools appear as native…
Tasks that involve MCP servers
SKILL.md covers How It Works, .mcp.json Schema, Transport Types and Common MCP Servers, plus 5 more sections
Calls pip, node and npm; needs API_KEY and GITHUB_PERSONAL_ACCESS_TOKEN

What it does

Native MCP is an agent skill from AlexAI-MCP/hermes-CCC. MCP server integration in Claude Code — add servers to .mcp.json, configure transports, and use their tools natively.

Its SKILL.md is about 940 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol. The repository describes itself as: Hermes Agent ported to Claude Code Channel — 46 native skills, no OAuth, no external process. The licence is MIT.

When your agent uses it

Tasks that involve MCP servers

Example prompts

“/native-mcp”

Requirements

Python 3
Node.js
A credential in API_KEY
A credential in GITHUB_PERSONAL_ACCESS_TOKEN

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

Add server config to .mcp.json in your project root
Restart Claude Code
The server's tools appear as native tools Claude can call directly

What it can do on your machine

Read from SKILL.md and the folder at commit 8107e89. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- pip
- node
- npm
- uvx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pip, npm and uvx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
- API_KEY
- GITHUB_PERSONAL_ACCESS_TOKEN
- NOTION_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Native MCP loads about 936 tokens when it runs. Until then it costs about 32 tokens; SKILL.md has 190 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~32
When it runs · the whole SKILL.md, loaded when a task matches: ~936

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

NoteMentions a .env fileSKILL.md:221

Or set in `.env` and load via direnv / shell profile.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from AlexAI-MCP/hermes-CCC at commit 8107e89, republished under its MIT licence (© AlexAI-MCP). 190 words, ~936 tokens.

Download SKILL.mdSave it as .claude/skills/native-mcp/SKILL.md (or your agent's skills folder).

name: native-mcp
description: MCP server integration in Claude Code — add servers to .mcp.json, configure transports, and use their tools natively.
version: 1.0.0
author: hermes-CCC (ported from Hermes Agent by NousResearch)
license: MIT

Native MCP Integration

Connect MCP servers to Claude Code and use their tools as first-class native tools.

How It Works

Add server config to .mcp.json in your project root
Restart Claude Code
The server's tools appear as native tools Claude can call directly

.mcp.json Schema

json

{
  "mcpServers": {
    "server-name": {
      "command": "python",
      "args": ["path/to/server.py"],
      "env": {
        "API_KEY": "secret"
      }
    }
  }
}

Transport Types

stdio (default — for local processes)

json

{
  "mcpServers": {
    "my-server": {
      "command": "python",
      "args": ["server.py"]
    }
  }
}

HTTP/SSE (for remote or HTTP servers)

json

{
  "mcpServers": {
    "remote-server": {
      "url": "http://localhost:8080/sse"
    }
  }
}

Common MCP Servers

Filesystem

json

{
  "mcpServers": {
    "filesystem": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/dir"]
    }
  }
}

Git

json

{
  "mcpServers": {
    "git": {
      "command": "uvx",
      "args": ["mcp-server-git", "--repository", "."]
    }
  }
}

GitHub

json

{
  "mcpServers": {
    "github": {
      "command": "npx",
      "args": ["-y", "@modelcontextprotocol/server-github"],
      "env": {"GITHUB_PERSONAL_ACCESS_TOKEN": "ghp_..."}
    }
  }
}

Obsidian

json

{
  "mcpServers": {
    "obsidian": {
      "command": "npx",
      "args": ["-y", "mcp-obsidian"],
      "env": {"OBSIDIAN_VAULT_PATH": "/path/to/vault"}
    }
  }
}

Playwright (Browser Automation)

json

{
  "mcpServers": {
    "playwright": {
      "command": "npx",
      "args": ["-y", "@playwright/mcp"]
    }
  }
}

Notion

json

{
  "mcpServers": {
    "notion": {
      "command": "npx",
      "args": ["-y", "@notionhq/mcp"],
      "env": {"NOTION_API_KEY": "secret_..."}
    }
  }
}

SQLite

json

{
  "mcpServers": {
    "sqlite": {
      "command": "uvx",
      "args": ["mcp-server-sqlite", "--db-path", "./data.db"]
    }
  }
}

Prerequisites

npx servers (Node.js)

bash

node --version   # must be 18+
npm --version

uvx servers (Python)

bash

pip install uv
uvx --version

Python servers

bash

pip install fastmcp mcp

After Adding a Server

Save .mcp.json
Restart Claude Code (or reload window in IDE extension)
Tools from the server now appear in Claude's tool list
Test: ask Claude to use one of the new tools

Debugging

Check Claude Code MCP logs:

Mac/Linux: ~/.claude/logs/
Windows: %APPDATA%\Claude\logs\

Common issues:

command not found: install npx/uvx or use full path
Auth errors: check env section for API keys
Timeout: server took too long to start

Security Best Practices

Never hardcode secrets in .mcp.json — use env vars from shell:

json

{
  "mcpServers": {
    "my-api": {
      "command": "python",
      "args": ["server.py"],
      "env": {
        "API_KEY": "${MY_API_KEY}"
      }
    }
  }
}

Or set in .env and load via direnv / shell profile.

Multiple Servers

json

{
  "mcpServers": {
    "filesystem": {...},
    "github": {...},
    "obsidian": {...},
    "playwright": {...},
    "custom-api": {...}
  }
}

All tools from all servers are available simultaneously.

Files

Just SKILL.md in skills/native-mcp of AlexAI-MCP/hermes-CCC.

Open the folder on GitHubat commit 8107e89

Compare with similar skills

Native MCP next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Native MCP compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Native MCP this skillAlexAI-MCP/hermes-CCC	135	—	~936	Automated safety check: Notes	MIT	6 mo ago
MCP Server Builderanthropics/skills	180k	63 repos	~2.3k	Automated safety check: Pass	Apache-2.0	yesterday
MCP Server BuildershareAI-lab/learn-claude-code	78k	4 repos	~1.2k	Automated safety check: Pass	MIT	12 days ago
MCP Integration for Pluginsanthropics/claude-plugins-official	38k	11 repos	~3.1k	Automated safety check: Pass	Apache-2.0	today
Crush Configurationcharmbracelet/crush	29k	—	~3.7k	Automated safety check: Pass	Custom licence	today
Context Mode Output Sandboxmksglu/context-mode	26k	—	~4.1k	Automated safety check: Pass	Custom licence	today

Similar skills

MCP Server Builder
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Official
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
180k GitHub starsUsed in 63 repos~2.3k tokens
Agent WorkflowsAuto-check passed
MCP Server Builder
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Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.
78k GitHub starsUsed in 4 repos~1.2k tokens
Agent WorkflowsAuto-check passed
MCP Integration for Plugins
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Crush Configuration
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Agent WorkflowsAuto-check passed
Context Mode Output Sandbox
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Questions about Native MCP

What does Native MCP do?

MCP server integration in Claude Code — add servers to .mcp.json, configure transports, and use their tools natively. Native MCP is an agent skill from AlexAI-MCP/hermes-CCC.json, configure transports, and use their tools natively.

When should I use Native MCP?

Native MCP fits situations like: tasks that involve MCP servers.

How do I install Native MCP in Claude Code?

Run `npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a claude-code`. Or copy the skill folder (skills/native-mcp in AlexAI-MCP/hermes-CCC) into .claude/skills/native-mcp in your project. Claude Code loads it when a task matches its description.

How do I install Native MCP in Codex?

Run `npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a codex`. Or copy the skill folder (skills/native-mcp in AlexAI-MCP/hermes-CCC) into .agents/skills/native-mcp in your project. Codex loads it when a task matches its description.

Can I use Native MCP in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add AlexAI-MCP/hermes-CCC --skill native-mcp -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/native-mcp, .gemini/skills/native-mcp, .github/skills/native-mcp and .opencode/skills/native-mcp in your project.

What does Native MCP need to run?

Going by SKILL.md and its folder, Native MCP needs the command-line tools its instructions call (pip, node, npm and uvx) and credentials named API_KEY, GITHUB_PERSONAL_ACCESS_TOKEN and NOTION_API_KEY. Our summary lists: Python 3; Node.js; A credential in API_KEY; A credential in GITHUB_PERSONAL_ACCESS_TOKEN.

Does Native MCP access the network?

SKILL.md contains no URLs. Its commands use pip, npm and uvx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Native MCP safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Native MCP use?

Native MCP is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Native MCP use?

About 936 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Native MCP?

Skills that share tags, products or a category with Native MCP: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Crush Configuration (charmbracelet/crush, 29k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Native MCP?

AlexAI-MCP (a GitHub user) maintains it in AlexAI-MCP/hermes-CCC, which has 135 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on April 8, 2026.

Source: AlexAI-MCP/hermes-CCC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Native MCP

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Native MCP Integration

How It Works

.mcp.json Schema

Transport Types

stdio (default — for local processes)

HTTP/SSE (for remote or HTTP servers)

Common MCP Servers

Filesystem

Git

GitHub

Obsidian

Playwright (Browser Automation)

Notion

SQLite

Prerequisites

npx servers (Node.js)

uvx servers (Python)

Python servers

After Adding a Server

Debugging

Security Best Practices

Multiple Servers

Files

Compare with similar skills

Similar skills

More from AlexAI-MCP/hermes-CCC

Related

Questions about Native MCP