Skill
Skill creator
Creates, edits, and evaluates agent skills, including description tuning and simple benchmarks.
Home / Use cases / Add a skill or an MCP server
Use case · Club note
Add a skill or an MCP server
Anthropic's skill-creator and mcp-builder, plus the rule that a downloaded SKILL.md is text until someone reviews it.
- Type
- Use case
- Author
- AgentSkillClub
- License
- CC0-1.0
- Status
- Club note
- Listed
- 2026-11-07
Before you use it. A club note is a reading order, not a product. Follow the license and the caution on each tool it links to.
Original AgentSkillClub write-up, released CC0-1.0. It is not an upstream project. Every tool it names is a separate open-source item in this catalog and keeps its own license.
When this is the job
You want a new SKILL.md, or a new MCP server, instead of another ad-hoc prompt.
Read these two first
- Skill creator is Anthropic's Apache-2.0 skill for writing, editing, and evaluating skills. The mirror on this site is the SKILL.md and the LICENSE.txt. The eval assets stay in the source repo.
- MCP builder is Anthropic's guide for a Python (FastMCP) or TypeScript MCP server. Same mirror rule.
Then stop before you install it
This site's install guide is the sequence: fetch the JSON, read the license, download the raw file only when it is mirrored, and do not execute companion scripts until a person has read them. A skill that says "run this script" is still a script.
Tools in this note
Skill
MCP builder
Guides the building of an MCP server in Python (FastMCP) or Node/TypeScript (MCP SDK), with an emphasis on tool design.
Questions
What license covers Add a skill or an MCP server?
The catalog records this as CC0-1.0. Original AgentSkillClub write-up, released CC0-1.0. It is not an upstream project. Every tool it names is a separate open-source item in this catalog and keeps its own license.
Is a raw file mirrored here?
The note itself is original text on this site, released CC0. It does not mirror the tools it mentions.
What should I check first?
A club note is a reading order, not a product. Follow the license and the caution on each tool it links to.
Nearby
Use case Club note
Work inside a repository
Filesystem, Git, and GitHub's official server, with deploy kept as a separate decision.
Use case Club note
Remember, and read current docs
Three different tools that all get called memory: a local graph, a vector store, and a live docs feed.