Struct ToolCallDetector 

pub struct ToolCallDetector { /* private fields */ }

Detects tool calls in natural language text when the LLM doesn’t emit structured tool_calls. This is a fallback for models that describe tool usage in prose rather than structured function calling.

Supported Patterns

• Use the <tool> tool with args <args> — explicit tool invocation
• I'll use the <tool> tool to run: <command> — shell command pattern
• Let me read the file <path> — read file pattern
• I'll search for <query> — web search pattern
• I'll fetch <url> — web fetch pattern

Example

let detector = ToolCallDetector::new();
let response = "I'll use the shell_exec tool to run: ls -la";
let calls = detector.detect(response);
assert_eq!(calls.len(), 1);
assert_eq!(calls[0].name, "shell_exec");

Implementations

impl ToolCallDetector

pub fn new() -> Self

Create a new detector with all built-in patterns

pub fn detect(&self, text: &str) -> Vec<ToolCall>

Detect tool calls in a response text. Returns a list of detected ToolCall structs. Deduplicates calls with the same tool name and arguments.

Trait Implementations

impl Default for ToolCallDetector

fn default() -> Self

Returns the “default value” for a type.