cameleer-server/.planning/phases/03-agent-registry-sse-push/03-02-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
03-agent-registry-sse-push	02	agent-sse	sse server-sent-events sseemitter command-push ping-keepalive spring-scheduled	phase provides 03-agent-registry-sse-push AgentRegistryService, AgentEventListener, AgentCommand, CommandType, AgentRegistryConfig	SseConnectionManager with per-agent SseEmitter management and event delivery AgentSseController GET /api/v1/agents/{id}/events SSE endpoint AgentCommandController with single/group/broadcast command targeting Command acknowledgement endpoint POST /{id}/commands/{commandId}/ack Ping keepalive every 15 seconds via @Scheduled Last-Event-ID header support (no replay)	04-security	added patterns sse-emitter-per-agent reference-equality-removal async-command-delivery-via-event-listener	created modified cameleer-server-app/src/main/java/com/cameleer/server/app/agent/SseConnectionManager.java cameleer-server-app/src/main/java/com/cameleer/server/app/controller/AgentSseController.java cameleer-server-app/src/main/java/com/cameleer/server/app/controller/AgentCommandController.java cameleer-server-app/src/test/java/com/cameleer/server/app/controller/AgentSseControllerIT.java cameleer-server-app/src/test/java/com/cameleer/server/app/controller/AgentCommandControllerIT.java cameleer-server-app/src/main/java/com/cameleer/server/app/config/WebConfig.java cameleer-server-app/src/test/resources/application-test.yml	SSE events path excluded from ProtocolVersionInterceptor for EventSource client compatibility SseConnectionManager uses reference-equality (==) in onCompletion/onTimeout/onError to avoid removing a newer emitter java.net.http.HttpClient async API for SSE integration tests to avoid test thread blocking	AgentEventListener bridge: core module fires event, app module @Component delivers via SSE CountDownLatch + async HttpClient for SSE integration test assertions	AGNT-04 AGNT-05 AGNT-06 AGNT-07	32min	2026-03-11

Phase 3 Plan 2: SSE Push Summary

SSE connection manager with per-agent SseEmitter, config-update/deep-trace/replay command delivery, group/broadcast targeting, ping keepalive, and command acknowledgement

Performance

• Duration: 32 min
• Started: 2026-03-11T17:44:10Z
• Completed: 2026-03-11T18:16:10Z
• Tasks: 2
• Files modified: 7

Accomplishments

• SseConnectionManager with ConcurrentHashMap-based per-agent SSE emitter management, ping keepalive, and AgentEventListener bridge
• Three command targeting levels: single agent, group, and broadcast to all LIVE agents
• 7 SSE integration tests (connect, 404 unknown, config-update/deep-trace/replay delivery, ping, Last-Event-ID) + 6 command controller tests
• All 71 tests pass with mvn clean verify

Task Commits

Each task was committed atomically:

1. Task 1: SseConnectionManager, SSE controller, and command controller - 5746886 (feat)
2. Task 2: Integration tests for SSE, commands, and full flow - a1909ba (test)

Files Created/Modified

• SseConnectionManager.java - Per-agent SseEmitter management, event delivery, ping keepalive via @Scheduled
• AgentSseController.java - GET /{id}/events SSE endpoint with Last-Event-ID support
• AgentCommandController.java - POST command endpoints (single/group/broadcast) + ack endpoint
• AgentSseControllerIT.java - 7 SSE integration tests using async HttpClient
• AgentCommandControllerIT.java - 6 command controller integration tests
• WebConfig.java - Added SSE events path to interceptor exclusion list
• application-test.yml - Added 1s ping interval for faster SSE test assertions

Decisions Made

• Excluded SSE events path from ProtocolVersionInterceptor -- EventSource clients cannot easily add custom headers, so the SSE endpoint is exempted from protocol version checking
• Used reference equality (==) in SseEmitter callbacks to avoid removing a newer emitter when an old one completes -- directly addresses Pitfall 3 from research
• Used java.net.http.HttpClient async API for SSE integration tests instead of adding spring-boot-starter-webflux -- avoids new dependencies and tests true end-to-end behavior

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

• Surefire fork JVM hangs ~30s after SSE tests complete due to async HttpClient threads holding JVM open -- not a test failure, just slow shutdown. Surefire eventually kills the fork.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Full bidirectional agent communication complete: agents POST data, server pushes commands via SSE
• Phase 4 (Security) can add JWT auth to all endpoints and Ed25519 config signing
• All agent endpoints under /api/v1/agents/ ready for auth layer

Self-Check: PASSED

• All 5 created files exist on disk
• Commit 5746886 found in git log (Task 1)
• Commit a1909ba found in git log (Task 2)
• mvn clean verify passes with 71 tests, 0 failures

---

Phase: 03-agent-registry-sse-push Completed: 2026-03-11