LangGraph execution engine

[DiTo97]

Hi @AnselCmy ,

I have released a gist with a slight modification to the execution engine, using LangGraph,
https://gist.github.com/DiTo97/05ff268bb640f9d87b3f53d61a302136

I thought that a well-structured tool execution engine would benefit the library.

The gist also includes more robust tool call search and validation, i.e., blocking nested tool calls:

<tool_call><tool_call>{...}</tool_call>{...}</tool_call>

If you find it interesting, happy to talk and contribute to the repository.

[AnselCmy]

Hi @DiTo97, thanks! the nested tool call seems interesting, we'll check that!

[DiTo97]

Hi @AnselCmy,

are you planning to align the implementation to VERL 0.4.0's multi-turn rollout with tool calling or not?

https://verl.readthedocs.io/en/latest/sglang_multiturn/multiturn.html