llama_server: allow streaming tool use

[khimaros]

5ire, the most recommended open source MCP client requires streaming and tool use.

however, llama_server doesn't allow this:

llama.cpp/examples/server/utils.hpp

Line 565 in f17a3bb

throw std::runtime_error("Cannot use tools with stream");

it would be great to be able to use this tool with llama.cpp directly.

[unclemusclez]

this is also a requirement for OpenAI Codex
llama-server[1090]: got exception: {"code":500,"message":"Cannot use tools with stream","type":"server_error"}

[jax0m]

this is also a requirement for OpenAI Codex llama-server[1090]: got exception: {"code":500,"message":"Cannot use tools with stream","type":"server_error"}

If implemented this may resolve issues with Agent calls from n8n n8n-io/n8n#13112

The current version of OpenAI API agent calls via the n8n chain results in the same error output when called as