Module tool_executor 

Native tool executors — Calculator and DateTimeTool.

Tools are pure functions that execute locally (no LLM call). When a use_tool step references a known tool, the runner intercepts it and calls the executor directly.

Supported tools:

• Calculator: safe arithmetic expression evaluator
• DateTimeTool: current date/time/timestamp queries

Structs

ToolResult

Result of a tool execution.

Functions

calculator_execute

Safe arithmetic expression evaluator.

datetime_execute

Current date/time queries using system time (UTC).

dispatch

Dispatch a tool call by name. Returns None if the tool is not a native executor.