Agent skill

Authoring

Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation.

Apache-2.0Auto-check passedAgent Workflows

Install Authoring

skills CLI

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

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

GitHub CLI

$ gh skill install activeing123/mcptoon authoring --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/authoring .claude/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .claude/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring

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 activeing123/mcptoon --skill authoring -a codex

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

GitHub CLI

$ gh skill install activeing123/mcptoon authoring --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/activeing123/mcptoon.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugin/mcptoon-skills/skills/authoring .agents/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .agents/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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 activeing123/mcptoon --skill authoring -a cursor

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

GitHub CLI

$ gh skill install activeing123/mcptoon authoring --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/activeing123/mcptoon.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugin/mcptoon-skills/skills/authoring .cursor/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .cursor/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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/activeing123/mcptoon.git --path plugin/mcptoon-skills/skills/authoring

--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 activeing123/mcptoon --skill authoring -a gemini-cli

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

GitHub CLI

$ gh skill install activeing123/mcptoon authoring --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/activeing123/mcptoon.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugin/mcptoon-skills/skills/authoring .gemini/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .gemini/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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 activeing123/mcptoon authoring

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 activeing123/mcptoon --skill authoring -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/activeing123/mcptoon.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugin/mcptoon-skills/skills/authoring .github/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .github/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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 activeing123/mcptoon --skill authoring -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 activeing123/mcptoon authoring --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/activeing123/mcptoon.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugin/mcptoon-skills/skills/authoring .opencode/skills/authoring && 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 "authoring" agent skill from https://github.com/activeing123/mcptoon/tree/main/plugin/mcptoon-skills/skills/authoring into .opencode/skills/authoring/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "authoring", 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: authoring
GitHub stars: 214
Token cost: ~559 tokens
SKILL.md length: 207 words
Files: 1
Skills in repo: 3
Repo updated: Oct 7, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation.

Tasks that involve MCP servers
SKILL.md covers Entry shapes, Hard rules for stdio commands, Plugin entries and Validation loop (always run…, plus 1 more section
Calls bash
Tasks that involve LLM cost and token optimization

What it does

Authoring is an agent skill from activeing123/mcptoon. Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation.

Its SKILL.md is about 560 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

“/authoring”

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
Shell commands in SKILL.md call:
- bash
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

Authoring loads about 559 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 207 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~38
When it runs · the whole SKILL.md, loaded when a task matches: ~559

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). 207 words, ~559 tokens.

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

name: authoring
description: Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation.

Author an MCP server entry for mcptoon

All servers live in ~/.mcptoon/config.json under mcpServers. Edit there, never in agent-side files, then run mcptoon sync.

Entry shapes

stdio (local process):

json

{
  "filesystem": {
    "type": "stdio",
    "command": "npx",
    "args": ["-y", "@modelcontextprotocol/server-filesystem", "/data"],
    "env": {"NODE_ENV": "production"}
  }
}

streamable-http / sse (remote):

json

{
  "remote-tools": {
    "type": "streamable-http",
    "url": "https://example.com/mcp"
  }
}

Hard rules for stdio commands

command is ONE executable token: a bare name (npx, uvx, mcptoon) or a ./-relative path inside a plugin. Never a shell string, never bash -c.
Absolute paths in command are forbidden; use PATH or ./ relative.
args is a list of strings. Shell metacharacters belong in args, not in command.

Plugin entries

Agent Plugins are installed under ~/.mcptoon/plugins/<plugin>/ and merged automatically with "<plugin>:<server>" names. Their paths can use placeholders, expanded at install time:

${PLUGIN_ROOT} — the installed plugin directory
${PLUGIN_DATA} — the plugin's persistent data directory (survives upgrades)

Plugin-managed entries should be edited by updating the plugin (reinstall with --force), not by hand-editing the merged config.

Validation loop (always run after writing)

bash

mcptoon doctor       # catches syntax, missing binaries, bad urls
mcptoon list         # confirm the server is visible
mcptoon health       # per-server connectivity, exit 1 if anything is dead

If you generated the entry from documentation, prefer mcptoon install --npm / --pip / --url over hand-writing JSON — it fills the correct shape for you.

Good tool hygiene (for server authors)

Prefer fewer, well-described tools over many overlapping ones; agents pick tools by description.
When a server ships a SKILL.md (Agent Plugins), keep the body actionable: concrete commands, exact flags, no marketing text.

Files

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

Open the folder on GitHubat commit 5ef92c1

Compare with similar skills

Authoring 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.

Authoring compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Authoring this skillactiveing123/mcptoon	214	—	~559	Automated safety check: Pass	Apache-2.0	today
Agentacct Workflowmikehasa/agentacct	765	—	~1.6k	Automated safety check: Pass	MIT	4 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
Fastmcp Client CLIPrefectHQ/fastmcp	28k	1 repos	~823	Automated safety check: Pass	Apache-2.0	today
Context Mode Output Sandboxmksglu/context-mode	26k	—	~4.1k	Automated safety check: Pass	Custom licence	today

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Questions about Authoring

What does Authoring do?

Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation. Authoring is an agent skill from activeing123/mcptoon. Add or edit an MCP server entry in mcptoon's config correctly — stdio/streamable-http/sse shapes, command rules, placeholders, and validation.

When should I use Authoring?

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

How do I install Authoring in Claude Code?

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

How do I install Authoring in Codex?

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

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

What does Authoring need to run?

Going by SKILL.md and its folder, Authoring needs the command-line tools its instructions call (bash).

Does Authoring 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 Authoring 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 Authoring use?

Authoring 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 Authoring use?

About 559 tokens (SKILL.md is roughly 2.2k 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 Authoring?

Skills that share tags, products or a category with Authoring: 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 Authoring?

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.

Authoring

Install Authoring

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Author an MCP server entry for mcptoon

Entry shapes

Hard rules for stdio commands

Plugin entries

Validation loop (always run after writing)

Good tool hygiene (for server authors)

Files

Compare with similar skills

Similar skills

Agentacct Workflow

MCP Server Builder

MCP Server Builder

Fastmcp Client CLI

Context Mode Output Sandbox

MemPalace Setup and Operation

More from activeing123/mcptoon

Connect

Triage

Questions about Authoring

Install Authoring

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Author an MCP server entry for mcptoon

Entry shapes

Hard rules for stdio commands

Plugin entries

Validation loop (always run after writing)

Good tool hygiene (for server authors)

Files

Compare with similar skills

Similar skills

More from activeing123/mcptoon

Related

Questions about Authoring