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Format and Reference guides
How SKILL.md and related files are put together.
How to write a SKILL.md: a step-by-step guide (2026)Write your first SKILL.md in six steps: one job, a matching name, a description agents can match, a short body, extra files, and a real check.→SKILL.md format explained: files, fields and limits (2026)The SKILL.md format explained from the open spec and the Claude Code docs: the folder layout, the two required fields, the size limits and how agents load it.→What is SKILL.md frontmatter? Every field, in plain English (2026)What SKILL.md frontmatter is, which fields are required, which ones Claude Code adds, and the mistakes that stop a skill from loading or uploading.→