title: 'Language Models Tools' sidebar_label: 'Tools' description: 'Learn how LLMs interact with the Spice runtime.' sidebar_position: 1 pagination_prev: null pagination_next: null tags:
Spice provides tools that help LLMs interact with the runtime. To specify these tools for a Spice model, include them in its params.tools.
For a list of available tools, or how to define additional tools, see Tool Components.
For details on tool groups, see Tool Components.
When a model requests to call a runtime tool, Spice runs the tool internally and feeds the result back to the model. The model may then request another tool call based on the result, creating a chain of tool invocations. The tool_recursion_limit parameter limits the depth of this internal recursion. By default, this limit is set to 10.
Lowering the limit can help prevent runaway tool chains in cases where a model repeatedly invokes tools without converging on a final answer.
