Client-side utilities
These tools run entirely in your browser. Use them to draft a validSKILL.md, decide whether a workflow belongs in a skill or an MCP server, and tighten the description that controls skill activation.
Build a format-aware SKILL.md scaffold from a name, trigger description, workflow steps, resources, and validation rules.
Free toolSkill vs MCP DeciderAnswer a few design questions and get a practical recommendation: skill, MCP server, or both.
Free toolSkill Description LinterScore a skill description for trigger coverage, verbs, boundaries, length, and missing activation cues.
Start with the Skill vs MCP Decider if the shape of the capability is unclear. If the answer is skill or both, use theSkill Scaffold Generator to draft the first file. Before installing it, paste the frontmatter description into theSkill Description Linter and tighten the trigger.
For the underlying concepts, read Anatomy of a skill,Authoring reusable skills, andSkills vs tools vs MCP.