Feature hasn't been suggested before.

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Describe the enhancement you want to request

In the endless quest to reduce the initial token cost I'd like to be able to move all the tool call descriptions to skills I can place globally or in my projects (instead of always placing them in the system prompt). That way I can also improve them and make them more explicit with examples for smaller models that struggle with tool calling. And LLMs with baked in/trained in tool calling might not even need the descriptions anyway, reducing token usage.

In many situations most of the tools aren't even used, so offloading them to skills (or maybe internal skills?) to load them on demand would be great.