Skip to content
appsgit

Tool Design

Tool Design is an agent skill (a SKILL.md file) from muratcankoylan/Agent-Skills-for-Context-Engineering. It should be used for the tool-interface layer of an agent system specifically: writing tool descriptions agents can route on, designing tool schemas and response… It works with Claude Code, Codex, Cursor and GitHub Copilot and has 18,216 GitHub stars across a repository of 6 listed skills.

github.com/muratcankoylan/Agent-Skills-for-Context-Engineering/skills/tool-design (opens in a new tab)

Data as of from the GitHub API and skills.sh; description from the skill's SKILL.md. Report an error

View on GitHub (opens in a new tab)View on skills.sh (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add muratcankoylan/Agent-Skills-for-Context-Engineering
/plugin install context-engineering@context-engineering-marketplace

In the Claude apps, zip the tool-design folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/muratcankoylan/Agent-Skills-for-Context-Engineering.git
cp -r Agent-Skills-for-Context-Engineering/skills/tool-design .agents/skills/tool-design   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/muratcankoylan/Agent-Skills-for-Context-Engineering.git
cp -r Agent-Skills-for-Context-Engineering/skills/tool-design .cursor/skills/tool-design   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

This skill should be used for the tool-interface layer of an agent system specifically: writing tool descriptions agents can route on, designing tool schemas and response formats, naming conventions, actionable error recovery messages, MCP server design, tool-set consolidation, and deciding when to add or remove an individual tool. Use this when the unit of work is a single tool or a set of tools.

When it triggers

  • used for the tool-interface layer of an agent system specifically: writing tool descriptions agents can route on, designing tool schemas and response formats, naming conventions, actionable error recovery messages, MCP server design, tool-s
  • Use this when the unit of work is a single tool or a set of tools.

More skills in muratcankoylan/Agent-Skills-for-Context-Engineering

6 skills are listed from this repository.

Similar skills

More design & frontend skills

All Design & frontend

FAQ

Tool Design FAQ

Still curious? Email info@appsgit.com.

How do I install the Tool Design skill?

In Claude Code, run /plugin marketplace add muratcankoylan/Agent-Skills-for-Context-Engineering and then /plugin install context-engineering@context-engineering-marketplace. For Codex or Cursor, copy the tool-design folder into .agents/skills/ or .cursor/skills/.

Is the Tool Design skill free?

Yes. The repository is open source under the MIT license.

Is Tool Design maintained?

The repository's most recent commit was on Oct 12, 2026. Its latest release is v2.3.0. appsgit only lists skills from repositories with a commit in the last six months.