Execution Mock Lifecycle Log

The following represents a mock chronological trace action sequence.

User Request: calculate_expression("10 - (2 * 3)")

1. FastMCP Invocation: Server receives string. Initializes LangGraph.
2. Router Node: Sees "10 - (2 * 3)". Not a simple number. Routes to planner.
3. Planner Node:
   • LLM analyzes expression.
   • Determines BODMAS bracket precedence: 2 * 3.
   • Generates output: {"op": "multiply", "args": [2, 3], "original_match": "2 * 3"}.
4. Multiplier Node:
   • Executes 2 * 3 = 6.0.
   • Replaces string. State current_expression is now "10 - (6.0)".
5. Router Node: Sees "10 - (6.0)". Not a simple number. Routes to planner.
6. Planner Node:
   • Strips brackets to "10 - 6.0".
   • Determines next operation.
   • Generates output: {"op": "subtract", "args": [10, 6.0], "original_match": "10 - 6.0"}.
7. Subtractor Node:
   • Executes 10 - 6.0 = 4.0.
   • Replaces string. State current_expression is now "4.0".
8. Router Node: Sees "4.0". This is a solitary float.
   • Sets final_value = 4.0.
   • Routes to END.
9. FastMCP Return: Server responds with "4.0".