=== Part 1: read-only query ===
init: model=claude-sonnet-5-5 cli=2.1.301 session=cb97d40a-19a6-44ab-86ef-9f64d567eca0
tool_use: Grep
result: success cost=$0.1482 turns=2
answer: src/app.py:5

=== Part 2: custom tool ===
tool_use: mcp__temps__convert_temperature({"value":100,"from":"F"})
tool_result: [{"type":"text","text":"100°F = 37.8°C"}]
tool_use: mcp__temps__convert_temperature({"value":37,"from":"C"})
tool_result: [{"type":"text","text":"37°C = 98.6°F"}]
answer: 100°F is 37.8°C, and 37°C is 98.6°F.