anthropics/skills: what is inside, 2026-10-11
Counted from the repository's files at commit dbd4588f9e10; nothing was run. A skill meets the format when its name is at most 64 lowercase letters, digits and hyphens and its description is 1 to 1,024 characters. The token figure is the combined length of distinct names and descriptions at four characters per token. Claude Code does not load all of it: past a budget it lists skills by name only (we measured 25,289 tokens at session start with 512 skills installed, against 17,781 with 12). All collections · How it is counted
| Skill files (SKILL.md) | 20 |
|---|---|
| Distinct skills by name | 20 |
| Meet the Agent Skills format | 19 of 20 |
| Format problems | description over 1,024: 1 |
| Longer than 500 lines | 1 |
| With a scripts folder | 8 |
| Median description length | 322 characters |
| Length of all names and descriptions, in tokens (estimate) | about 2,415 |
| Command files | 0 |
| Agent files | 3 |