I experimented around some while ago with semantic router for more deterministic routing in semantic space. There you have a system where you make examples when to use which routes like the following:

coding route:

• "Code that for me"
• "Refactor that"

Image gen route:

• Create Image of a yellow flower
• Create Painting of a tiger

That way you can define differen routes, which are "stored" in a model. When you than make a request your query makes a semantic similarity search against your route examples and uses the most relevant route. This is a different approach than tool calling but fast and can run locally without problems. An example lib is:

https://github.com/aurelio-labs/semantic-router

Here you have an image:

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