Creating custom skills changedskills/how-to
Nearest release: v2.1.268, published 2 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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14 Aug 2026
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4646**name**: Lowercase letters, numbers, and hyphens only. Maximum 64 characters. Must match the directory name.
4747
48**description**: Explains what the skill does and when to use it. Claude uses this to determine when to invoke your skill.
49
50<Warning>
51 Claude.ai limits descriptions to **200 characters**. The [Agent Skills specification](https://agentskills.io/specification) allows up to 1024 characters, but skills uploaded to Claude.ai must use the shorter limit.
52</Warning>
48**description**: Explains what the skill does and when to use it. Claude uses this to determine when to invoke your skill. Maximum 1,024 characters, the same limit as the [Agent Skills specification](https://agentskills.io/specification).
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5450### Markdown body
5551
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