// free tools
Free tools for building with agent skills.
The same standards we verify skills against, packaged as free tools. No account, no cost — build a skill, check one, or wire up an MCP server in minutes.
Skill BuilderDescribe what you want in plain English; get a complete, spec-valid SKILL.md — frontmatter, instructions, the works. Free, no signup.claude skill builder · skill generatorSKILL.md ValidatorPaste or drop a SKILL.md and get an instant spec check: frontmatter, name and description rules, structure, progressive disclosure. Runs in your browser.skill md linter · skill md template checkMCP Config GeneratorGenerate ready-to-paste MCP server config for Claude Code, Claude Desktop, Cursor, Codex, Gemini CLI and VS Code — or connect SkillzBench's own MCP in one step.mcp server builder · mcp setup
Built a skill you like? Submit it to the directory — it gets pinned, scanned and benchmarked like everything else. Looking for skills to use instead? Browse the directory.