Topic 7: Module 3 milestone and interview questions

notes-assistant/
  notes/                          unchanged: every demo writes to a temporary copy
  notes_assistant/                unchanged: store.py and llm.py (Module 1) are imported; host.py (Module 6) is previewed for needs_approval
  examples/
    __init__.py
    m03_first_attempt.py          the careless tool and what it teaches the model
    m03_server.py                 build_m03_server: search_notes and create_note (canonical design)
    m03_inspect_tools.py          prints the wire definition and both result channels
    m03_tool_names.py             spec and provider name checks
    m03_annotations.py            annotations as untrusted claims
    m03_tool_variants.py          vague, disambiguated, and merged tool sets
    m03_tool_selection_eval.py    20 labelled questions, stand-in and --llm selectors, statistics
    m03_payload_size.py           inline versus snippet-plus-URI versus resource links
    m03_errors.py                 validation, ToolError, crash, leak, MCPError
    m03_tool_cost.py              definition cost of 2 versus 12 tools
    m03_idempotency.py            retries of create_note versus a create-or-confirm tool
    m03_dynamic_tools.py          add_tool plus notify_tools_changed, client.listen, HTTP serve mode
    m03_wire/listen.json          raw subscriptions/listen request
    m03_wire/call.json            raw tools/call request
    m03_lab.py                    the Module Lab
  tests/
    test_m03_tools.py             the tool contract as tests