freemo 680cc8c352 feat(a2a): implement A2A stdio transport for local mode ...

Add A2aStdioTransport class that manages subprocess lifecycle and
communicates via newline-delimited JSON-RPC 2.0 messages over
stdin/stdout. Add A2aTransport protocol (typing.Protocol) defining
the abstract transport interface. Add A2aTransportSelector that
picks A2aStdioTransport in local mode (no server URL) or
A2aHttpTransport in server mode.

New files:
- transport_protocol.py: A2aTransport Protocol
- stdio_transport.py: A2aStdioTransport with subprocess management
- transport_selector.py: A2aTransportSelector configuration-based
- echo_agent.py: Minimal echo agent fixture for tests

Tests:
- 20 Behave BDD scenarios covering protocol conformance, construction,
  subprocess lifecycle, send/receive, context manager, transport
  selector, and contract round-trip tests
- 7 Robot Framework integration tests with helper script

ISSUES CLOSED: #691

2026-03-12 01:52:41 +00:00

..

m1

test(e2e): add M1 source-code plan lifecycle suite

2026-02-25 04:50:43 +00:00

m2

test(e2e): add M2 actor + tool source smoke suite

2026-02-24 21:55:24 +00:00

m3

test(e2e): add M3 decision + validation suites

2026-02-25 21:26:19 +00:00

m4

test(e2e): add M4 correction + subplan suites

2026-02-25 21:51:26 +00:00

m5

test(e2e): add M5 ACMS + context suites

2026-02-27 20:20:13 +00:00

m6

refactor(a2a): rename ACP module and symbols to A2A standard

2026-03-11 22:10:25 +00:00

scale

test(perf): add scale test fixtures

2026-02-20 03:31:43 +00:00

v2

feat: ported in run behavior as a subcommand of actor

2026-02-04 14:43:08 -05:00

validation

test(validation): add semantic validation suites

2026-03-02 22:05:53 +00:00

echo_agent.py

feat(a2a): implement A2A stdio transport for local mode

2026-03-12 01:52:41 +00:00