It does decently well actually. You can test function-calling using Langroid. There are several example scripts you could try from the repo, e.g. uv run ex

It does decently well actually. You can test function-calling using Langroid. There are several example scripts you could try from the repo, e.g. uv run examples/basic/tool-extract-short-example.py --model ollama/mistral-small sample output: https://gist.github.com/pchalasani/662d7f13dbe690d6e2bfef01c8b70026 https://gist.github.com/pchalasani/662d7f13dbe690d6e2bfef01c... Langroid has a ToolMessage mechanism that lets you specify a tool/fn-call using Pydantic, which is then transpiled into system message instructions.