Agent skill

Connect

by activeing123 in activeing123/mcptoon

Connect any AI agent to MCP servers through mcptoon — one config synced everywhere, one stdio gateway, 99.2% fewer tokens on tool discovery.

Apache-2.0Auto-check passedAgent Workflows

Install Connect

skills CLI
$ npx skills add activeing123/mcptoon --skill connect -a claude-code

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

GitHub CLI
$ gh skill install activeing123/mcptoon connect --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/activeing123/mcptoon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugin/mcptoon-skills/skills/connect .claude/skills/connect && 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/

Facts

Skill name
connect
GitHub stars
214
Used in
1 other repo
Token cost
~701 tokens
SKILL.md length
214 words
Files
1
Skills in repo
3
Repo updated
First seen
Licence
Apache-2.0

At a glance

Connect any AI agent to MCP servers through mcptoon — one config synced everywhere, one stdio gateway, 99.2% fewer tokens on tool discovery.

  • Tasks that involve MCP servers
  • SKILL.md covers First move: look before you…, Add servers, Sync one config to every agent and Expose everything through one…, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve LLM cost and token optimization

What it does

Connect is an agent skill from activeing123/mcptoon. Connect any AI agent to MCP servers through mcptoon — one config synced everywhere, one stdio gateway, 99.2% fewer tokens on tool discovery.

Its SKILL.md is about 700 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 and LLM cost and token optimization. It works with Model Context Protocol and Python. The repository describes itself as: One zero-dependency CLI for every MCP server and agent skill. Token optimization, tool discovery and context compression: 71,929 - 581 tokens (-99.2%, measured), schemas stay out… The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve MCP servers
  • Tasks that involve LLM cost and token optimization

Example prompts

  • “/connect”

What it can do on your machine

Read from SKILL.md and the folder at commit 5ef92c1. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash and json).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    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

Connect loads about 701 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 214 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~37
When it runs · the whole SKILL.md, loaded when a task matches
~701

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 passed

The automated check found no risky patterns in SKILL.md.

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 activeing123/mcptoon at commit 5ef92c1, republished under its Apache-2.0 licence (© activeing123). 214 words, ~701 tokens.

Download SKILL.mdSave it as .claude/skills/connect/SKILL.md (or your agent's skills folder).
name
connect
description
Connect any AI agent to MCP servers through mcptoon — one config synced everywhere, one stdio gateway, 99.2% fewer tokens on tool discovery.

Connect agents to MCP servers with mcptoon

mcptoon keeps one config (~/.mcptoon/config.json) as the single source of truth for every MCP server an agent may use. It syncs that config into Claude Desktop, Claude Code, Cursor, Codex, Cline, Windsurf and VS Code, and can expose all servers through one stdio gateway (mcptoon serve).

First move: look before you change anything

bash
mcptoon list            # what servers are configured right now
mcptoon doctor          # config syntax + connectivity diagnosis

If doctor reports problems, fix those before adding anything new.

Add servers

bash
mcptoon discover                  # scan + probe locally installed MCP servers
mcptoon discover --write          # and write what was found into config
mcptoon add <name> --help         # see add options for stdio/http servers
mcptoon install <name> --npm @scope/pkg   # from npm
mcptoon install <name> --pip pkg          # from pip
mcptoon install <name> --url https://host/mcp   # streamable-http / sse

After editing ~/.mcptoon/config.json by hand, validate with mcptoon doctor.

Sync one config to every agent

bash
mcptoon sync              # write config into all detected agents
mcptoon sync --dry        # preview only
mcptoon sync --agent claude   # one agent only

Instead of registering N servers in an agent, register ONE:

json
{ "mcpServers": { "mcptoon": { "command": "mcptoon", "args": ["serve"] } } }

mcptoon serve speaks MCP over stdio and forwards to every configured server. Benefits: one entry in the agent config, tool lists stay compact, and Plugin skills appear as MCP prompts automatically.

Token efficiency flags

Tool manifests can be huge. When calling mcptoon from a terminal, keep output small on purpose:

bash
mcptoon manifest --toon        # standard TOON format (~34% saved)
mcptoon manifest --slim        # ultra-compact schemas (93% saved)
mcptoon manifest --compact     # names only (99.2% saved)
mcptoon search <query>         # find a tool without dumping the whole manifest
mcptoon inspect <server> <tool>   # full schema for exactly one tool

Toggles

Single tools can be disabled without removing the server (agents then never see them): toggle in ~/.mcptoon/config.json on the server entry, then mcptoon sync.

Rules of thumb

  • Never edit agent-side config files directly; edit mcptoon's config and sync.
  • mcptoon watch (if running) syncs on every save.
  • Verify with mcptoon health — exit code 1 means something is down (CI-friendly).

© activeing123, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugin/mcptoon-skills/skills/connect of activeing123/mcptoon.

Open the folder on GitHubat commit 5ef92c1

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in activeing123/mcptoon, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Connect 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.

Connect compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Connect this skillactiveing123/mcptoon2141 repos~701Automated safety check: PassApache-2.0
Agentacct Workflowmikehasa/agentacct765—~1.6kAutomated safety check: PassMIT
MCP Server Builderanthropics/skills180k62 repos~2.3kAutomated safety check: PassApache-2.0
MCP Server BuildershareAI-lab/learn-claude-code78k5 repos~1.2kAutomated safety check: PassMIT
Fastmcp Client CLIPrefectHQ/fastmcp28k1 repos~823Automated safety check: PassApache-2.0
Context Mode Output Sandboxmksglu/context-mode26k—~4.1kAutomated safety check: PassCustom licence

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  • MCP Server Builder

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More from activeing123/mcptoon

  • Authoring

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  • Triage

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Categories

Questions about Connect

What does Connect do?

Connect any AI agent to MCP servers through mcptoon — one config synced everywhere, one stdio gateway, 99.2% fewer tokens on tool discovery. Connect is an agent skill from activeing123/mcptoon.2% fewer tokens on tool discovery.

When should I use Connect?

Connect fits situations like: tasks that involve MCP servers; tasks that involve LLM cost and token optimization.

How do I install Connect in Claude Code?

Run `npx skills add activeing123/mcptoon --skill connect -a claude-code`. Or copy the skill folder (plugin/mcptoon-skills/skills/connect in activeing123/mcptoon) into .claude/skills/connect in your project. Claude Code loads it when a task matches its description.

How do I install Connect in Codex?

Run `npx skills add activeing123/mcptoon --skill connect -a codex`. Or copy the skill folder (plugin/mcptoon-skills/skills/connect in activeing123/mcptoon) into .agents/skills/connect in your project. Codex loads it when a task matches its description.

Can I use Connect 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 activeing123/mcptoon --skill connect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/connect, .gemini/skills/connect, .github/skills/connect and .opencode/skills/connect in your project.

What does Connect need to run?

SKILL.md names no scripts, command-line tools or credentials: Connect is instructions for the agent only.

Does Connect access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Connect safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Connect use?

Connect is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Connect use?

About 701 tokens (SKILL.md is roughly 2.8k 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 Connect?

Skills that share tags, products or a category with Connect: Agentacct Workflow (mikehasa/agentacct, 765 stars), MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k 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 Connect?

activeing123 (a GitHub user) maintains it in activeing123/mcptoon, which has 214 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 7, 2026.

Source: activeing123/mcptoon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.