v2.0.0 — A2A v1.0 Gateway Rewrite

CORE v2.0.0 — Rewrite as A2A v1.0 Gateway

Hotfix v2.0.1 (2026-07-07)

• Expose both /.well-known/agent.json (standard A2A primary path) and /.well-known/agent-card.json (compatibility path)
• Both endpoints return identical Agent Card content, matching CUE v2.0 behavior

Architecture Change

• Before: Message store + HTTP API (not A2A-compliant)
• After: Proper A2A v1.0 gateway based on official a2a-sdk v1.1.0

New Features

• Agent Card: /.well-known/agent.json — standard A2A discovery
• JSON-RPC Transport: /a2a/jsonrpc — SendMessage, GetTask, ListTasks, CancelTask
• Agent Routing: explicit agentId > rule-based (tags/patterns) > default fallback
• Task Lifecycle: standard state machine (submitted → working → completed/failed/cancelled)
• SQLite TaskStore: persistent task storage with indexed queries
• Bearer Token Auth: hmac.compare_digest middleware, TLS support, loopback default
• Routing Rules: YAML config with priority-based matching

Files

• server_v2/ — new gateway implementation (9 files, 1336 lines)
• Dockerfile.v2 — container build for v2.0
• tests/test_v2_core.py — 23 unit tests

Test Results

• 23/23 v2.0 tests passing
• 35/35 v1.x tests passing (no regressions)

Breaking Changes

• Standard A2A method names (SendMessage not message/send)
• Requires a2a-sdk>=1.1.0 with sse-starlette, starlette, uvicorn