Agent skill

MCP CLI

A skill your agent uses when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

MITAuto-check: notesAgent Workflows

Install MCP CLI

skills CLI

$ npx skills add romiluz13/cc10x --skill mcp-cli -a claude-code

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

GitHub CLI

$ gh skill install romiluz13/cc10x mcp-cli --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/romiluz13/cc10x.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .claude/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .claude/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli

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 romiluz13/cc10x --skill mcp-cli -a codex

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

GitHub CLI

$ gh skill install romiluz13/cc10x mcp-cli --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/romiluz13/cc10x.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .agents/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .agents/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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 romiluz13/cc10x --skill mcp-cli -a cursor

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

GitHub CLI

$ gh skill install romiluz13/cc10x mcp-cli --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/romiluz13/cc10x.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .cursor/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .cursor/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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/romiluz13/cc10x.git --path plugins/cc10x/skills/mcp-cli

--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 romiluz13/cc10x --skill mcp-cli -a gemini-cli

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

GitHub CLI

$ gh skill install romiluz13/cc10x mcp-cli --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/romiluz13/cc10x.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .gemini/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .gemini/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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 romiluz13/cc10x mcp-cli

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 romiluz13/cc10x --skill mcp-cli -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/romiluz13/cc10x.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .github/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .github/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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 romiluz13/cc10x --skill mcp-cli -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 romiluz13/cc10x mcp-cli --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/romiluz13/cc10x.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/cc10x/skills/mcp-cli .opencode/skills/mcp-cli && 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 "mcp-cli" agent skill from https://github.com/romiluz13/cc10x/tree/main/plugins/cc10x/skills/mcp-cli into .opencode/skills/mcp-cli/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mcp-cli", 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: mcp-cli
GitHub stars: 164
Token cost: ~739 tokens
SKILL.md length: 290 words
Files: 1
Skills in repo: 22
Repo updated: Sep 30, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

A skill your agent uses when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

You need a one-off MCP server capability during research
SKILL.md covers Overview, Prerequisite (install once), Flow: discover → call → release and Aliases (only for repeated use…
Calls git, go and npx; reaches github.com
Debugging without permanently mounting it as a context-polluting integration

What it does

MCP CLI is an agent skill from romiluz13/cc10x. Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

Its SKILL.md is about 740 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: The Loop Engine for Claude Code — engineer the loop, not the prompt. 1 router · 9 agents · 16 skills · 4 workflows. Fail-closed gates, test honesty, anti-anchored review. The licence is MIT.

When your agent uses it

You need a one-off MCP server capability during research
Debugging without permanently mounting it as a context-polluting integration

Example prompts

“/mcp-cli”

Requirements

Node.js
Docker
Pre-approved tools (allowed-tools): Read, Bash

What it can do on your machine

Read from SKILL.md and the folder at commit 891acf0. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- git
- go
- npx
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
- github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

MCP CLI loads about 739 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 290 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~39
When it runs · the whole SKILL.md, loaded when a task matches: ~739

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.

NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
```
allowed-tools: Read, Bash
```

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 romiluz13/cc10x at commit 891acf0, republished under its MIT licence (© romiluz13). 290 words, ~739 tokens.

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

name: mcp-cli
description: Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.
allowed-tools: Read, Bash
user-invocable: false

MCP CLI (Transient MCP Access)

Overview

The mcp CLI (from github.com/f/mcptools) discovers and invokes MCP server capabilities on-demand. Use it when a task needs ONE server's tool — a doc fetch, a single query, a quick lookup — instead of permanently mounting that server as an always-loaded integration.

This keeps accelerators transient: spun up for the task, used, and dropped. A permanently mounted MCP server costs context on every session whether you call it or not. The CLI costs nothing until you run it.

Composes with cc10x:research.

Prerequisite (install once)

Check first: command -v mcp. If absent, install:

bash

git clone https://github.com/f/mcptools /tmp/mcptools
CGO_ENABLED=0 go build -o ~/.local/bin/mcp /tmp/mcptools/cmd/mcptools
# ensure ~/.local/bin is on PATH

If go is unavailable, report that the accelerator is missing and proceed with built-in tools — do NOT treat the missing binary as a task blocker (it is a fallback message, not a wall).

Flow: discover → call → release

1. Discover first — always. Never call a tool whose schema you have not seen — guessed params fail silently or hit the wrong tool.

bash

mcp tools <server-command>                 # list tools
mcp tools --format json <server-command>   # full param schema for parsing
mcp resources <server-command>             # list resources
mcp prompts <server-command>               # list prompts

2. Lead read-only when exploring. Restrict the surface before you touch an unfamiliar server:

bash

mcp guard --allow 'tools:read_*,list_*' --deny 'tools:write_*,delete_*' <server-command>

Drop the guard only once you know exactly which write you intend.

3. Call with params matching the discovered signature exactly (param:str, param:num, [optional]):

bash

mcp call <tool_name> --params '<json>' -f json <server-command>

Output -f json for parsing, -f pretty for reading. Check exit code and stderr on failure — a non-zero exit is a real error, not a fallback message.

Server-command examples:

stdio: npx -y @modelcontextprotocol/server-filesystem /path
HTTP: pass the URL (auto-detected); SSE via --transport sse
auth: --auth-header "Bearer <token>", --auth-user user:pass, or -e ENV_VAR for docker servers

Aliases (only for repeated use in one task)

If you call the same server several times, alias it; remove it when the task ends so nothing lingers:

bash

mcp alias add <name> <server-command>   # then: mcp tools <name>, mcp call ... <name>
mcp alias remove <name>                 # release when done

Aliases persist in ~/.mcpt/aliases.json. Cleaning them up is part of keeping the accelerator transient.

Files

Just SKILL.md in plugins/cc10x/skills/mcp-cli of romiluz13/cc10x.

Open the folder on GitHubat commit 891acf0

Compare with similar skills

MCP CLI 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.

MCP CLI compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
MCP CLI this skillromiluz13/cc10x	164	—	~739	Automated safety check: Notes	MIT	7 days ago
MCP Server Builderanthropics/skills	180k	62 repos	~2.3k	Automated safety check: Pass	Apache-2.0	2 days ago
MCP Server BuildershareAI-lab/learn-claude-code	78k	5 repos	~1.2k	Automated safety check: Pass	MIT	9 days ago
MCP Integration for Pluginsanthropics/claude-plugins-official	37k	11 repos	~3.1k	Automated safety check: Pass	Apache-2.0	yesterday
Fastmcp Client CLIPrefectHQ/fastmcp	28k	1 repos	~823	Automated safety check: Pass	Apache-2.0	yesterday
Crush Configurationcharmbracelet/crush	29k	—	~3.7k	Automated safety check: Pass	Custom licence	yesterday

Similar skills

MCP Server Builder
anthropics/skills
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 62 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 5 repos~1.2k tokens
Agent WorkflowsAuto-check passed
MCP Integration for Plugins
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37k GitHub starsUsed in 11 repos~3.1k tokens
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Fastmcp Client CLI
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Query and invoke tools on MCP servers using fastmcp list and fastmcp call.
28k GitHub starsUsed in 1 repo~823 tokens
Agent WorkflowsAuto-check passed
Crush Configuration
charmbracelet/crush
Explains how to configure the Crush coding agent with crushrc or crush.json, covering providers, models, LSPs, MCP servers, hooks, permissions and config precedence.
29k GitHub stars~3.7k tokensUpdated yesterday
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Agent WorkflowsAuto-check passed

Questions about MCP CLI

What does MCP CLI do?

A skill your agent uses when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration. MCP CLI is an agent skill from romiluz13/cc10x. Use when you need a one-off MCP server capability during research or debugging without permanently mounting it as a context-polluting integration.

When should I use MCP CLI?

MCP CLI fits situations like: you need a one-off MCP server capability during research; debugging without permanently mounting it as a context-polluting integration.

How do I install MCP CLI in Claude Code?

Run `npx skills add romiluz13/cc10x --skill mcp-cli -a claude-code`. Or copy the skill folder (plugins/cc10x/skills/mcp-cli in romiluz13/cc10x) into .claude/skills/mcp-cli in your project. Claude Code loads it when a task matches its description.

How do I install MCP CLI in Codex?

Run `npx skills add romiluz13/cc10x --skill mcp-cli -a codex`. Or copy the skill folder (plugins/cc10x/skills/mcp-cli in romiluz13/cc10x) into .agents/skills/mcp-cli in your project. Codex loads it when a task matches its description.

Can I use MCP CLI 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 romiluz13/cc10x --skill mcp-cli -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mcp-cli, .gemini/skills/mcp-cli, .github/skills/mcp-cli and .opencode/skills/mcp-cli in your project.

What does MCP CLI need to run?

Going by SKILL.md and its folder, MCP CLI needs the command-line tools its instructions call (git, go and npx). Our summary lists: Node.js; Docker. Its frontmatter pre-approves these tools: Read, Bash.

Does MCP CLI access the network?

SKILL.md names 1 domain. In commands or code: github.com; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is MCP CLI safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does MCP CLI use?

MCP CLI is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does MCP CLI use?

About 739 tokens (SKILL.md is roughly 3k 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 MCP CLI?

Skills that share tags, products or a category with MCP CLI: 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, 37k stars) and Fastmcp Client CLI (PrefectHQ/fastmcp, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains MCP CLI?

romiluz13 (a GitHub user) maintains it in romiluz13/cc10x, which has 164 GitHub stars. The repository holds 22 skills in this directory. The repository was last updated on September 30, 2026.

Source: romiluz13/cc10x on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

MCP CLI

Install MCP CLI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

MCP CLI (Transient MCP Access)

Overview

Prerequisite (install once)

Flow: discover → call → release

Aliases (only for repeated use in one task)

Files

Compare with similar skills

Similar skills

MCP Server Builder

MCP Server Builder

MCP Integration for Plugins

Fastmcp Client CLI

Crush Configuration

Context Mode Output Sandbox

More from romiluz13/cc10x

Diff Driven Docs

Cc10x Guide

Cc10x Router

Codebase Design

Resolving Merge Conflicts

Update

Questions about MCP CLI

Install MCP CLI

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

MCP CLI (Transient MCP Access)

Overview

Prerequisite (install once)

Flow: discover → call → release

Aliases (only for repeated use in one task)

Files

Compare with similar skills

Similar skills

More from romiluz13/cc10x

Related

Questions about MCP CLI