Demonstrates message chaining: user -> greeter -> shouter -> user
- Add ShoutedResponse payload class (ALL CAPS response)
- Add handle_shout handler that forwards to original sender
- Update GreetingResponse to track original_sender
- Fix wrap_in_envelope to add xmlns="" to payloads
- Update organism.yaml with shouter listener
- Update tests for 2-listener configuration
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Major refactor of the message pump architecture:
- Replace bus.py with stream_pump.py using aiostream for composable
stream processing with natural fan-out via flatmap
- Add to_id field to MessageState for explicit routing
- Fix routing to use to_id.class format (e.g., "greeter.greeting")
- Generate XSD schemas from xmlified payload classes
- Fix xmlable imports (absolute -> relative) and parse_element ctx
New features:
- handlers/hello.py: Sample Greeting/GreetingResponse handler
- config/organism.yaml: Sample organism configuration
- 41 tests (31 unit + 10 integration) all passing
Schema changes:
- envelope.xsd: Allow any namespace payloads (##other -> ##any)
Dependencies added to pyproject.toml:
- aiostream>=0.5 (core dependency)
- pyhumps, termcolor (for xmlable)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
