WEBVTT

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Besides sub-agents,
one other key feature that can make

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Claude Code better are agent skills,

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which is actually an open standard
supporting by

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other AI coding tools like Cursor,
OpenCode, and many

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others as well.
The idea behind agent skills

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is that you define extra dynamically

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loaded pieces of context
that can come in helpful for

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certain tasks. For example, a document
or a

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combination of documents
that describes some best practices

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on building React components or Python

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classes, or C++ classes, or

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whatever applies to your project.

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And a skill is simply the combination of a

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skill.md file that is always required
and will

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create one together in a second,
and then some optional

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additional documents
or folders with documents

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inside. Skills can even get access to

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scripts which may be executed by the AI.

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So if you, for example,
want to define a cleanup script

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that deletes files in a certain way,
you can do so using

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Python or JavaScript.
But in my experience, the most

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useful skills for building applications
are simply

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knowledge skills
that provide extra information, extra

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instructions, extra best practices
and so on.

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But if you need to include scripts
or extra assets like images

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with diagrams, you can do so as well.

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But let's now build such a skill.