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All 3 plans executed, verified, phase marked complete.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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hsiegeln
2026-03-11 12:20:14 +01:00
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.planning/STATE.md
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gsd_state_version: 1.0 gsd_state_version: 1.0
milestone: v1.0 milestone: v1.0
milestone_name: milestone milestone_name: milestone
status: executing status: completed
stopped_at: Completed 01-02-PLAN.md stopped_at: Completed 01-02-PLAN.md (Phase 1 fully complete)
last_updated: "2026-03-11T11:14:00.000Z" last_updated: "2026-03-11T11:20:09.673Z"
last_activity: 2026-03-11 -- Completed 01-02 (Ingestion endpoints, ClickHouse repositories, flush scheduler, 11 ITs) last_activity: 2026-03-11 -- Completed 01-02 (Ingestion endpoints, ClickHouse repositories, flush scheduler, 11 ITs)
progress: progress:
total_phases: 4 total_phases: 4

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.planning/phases/01-ingestion-pipeline-api-foundation/01-VERIFICATION.md Normal file
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---
phase: 01-ingestion-pipeline-api-foundation
verified: 2026-03-11T12:00:00Z
status: passed
score: 5/5 must-haves verified
re_verification: false
---
# Phase 1: Ingestion Pipeline + API Foundation Verification Report
**Phase Goal:** Agents can POST execution data, diagrams, and metrics to the server, which batch-writes them to ClickHouse with TTL retention and backpressure protection
**Verified:** 2026-03-11
**Status:** PASSED
**Re-verification:** No — initial verification
## Goal Achievement
### Observable Truths (from ROADMAP.md Success Criteria)
| # | Truth | Status | Evidence |
|----|-----------------------------------------------------------------------------------------------------------------------------------------------------|------------|------------------------------------------------------------------------------------------------------------------------|
| 1 | An HTTP client can POST a RouteExecution payload to `/api/v1/data/executions` and receive 202 Accepted, and the data appears in ClickHouse within the flush interval | VERIFIED | `ExecutionController` returns 202; `ExecutionControllerIT.postExecution_dataAppearsInClickHouseAfterFlush` uses Awaitility to confirm row in `route_executions` |
| 2 | An HTTP client can POST RouteGraph and metrics payloads to their respective endpoints and receive 202 Accepted | VERIFIED | `DiagramController` and `MetricsController` both return 202; `DiagramControllerIT.postDiagram_dataAppearsInClickHouseAfterFlush` and `MetricsControllerIT.postMetrics_dataAppearsInClickHouseAfterFlush` confirm ClickHouse persistence |
| 3 | When the write buffer is full, the server returns 503 and does not lose already-buffered data | VERIFIED | `BackpressureIT.whenBufferFull_returns503WithRetryAfter` confirms 503 + `Retry-After` header; `bufferedDataNotLost_afterBackpressure` confirms buffered items remain in buffer (diagram flush-to-ClickHouse path separately covered by DiagramControllerIT) |
| 4 | Data older than the configured TTL (default 30 days) is automatically removed by ClickHouse | VERIFIED | `HealthControllerIT.ttlConfiguredOnRouteExecutions` and `ttlConfiguredOnAgentMetrics` query `SHOW CREATE TABLE` and assert `TTL` + `toIntervalDay(30)` present in schema |
| 5 | The health endpoint responds at `/api/v1/health`, OpenAPI docs are available, protocol version header is validated, and unknown JSON fields are accepted | VERIFIED | `HealthControllerIT` confirms 200; `OpenApiIT` confirms OpenAPI JSON + Swagger UI accessible; `ProtocolVersionIT` confirms 400 without header, 400 on wrong version, passes on version "1"; `ForwardCompatIT` confirms unknown fields do not cause 400/422 |
**Score:** 5/5 truths verified
---
### Required Artifacts
#### Plan 01-01 Artifacts
| Artifact | Expected | Status | Details |
|---|---|---|---|
| `cameleer3-server-core/src/main/java/com/cameleer3/server/core/ingestion/WriteBuffer.java` | Generic bounded write buffer with offer/drain/isFull | VERIFIED | 80 lines; `ArrayBlockingQueue`-backed; implements `offer`, `offerBatch` (all-or-nothing), `drain`, `isFull`, `size`, `capacity`, `remainingCapacity` |
| `clickhouse/init/01-schema.sql` | ClickHouse DDL for all three tables | VERIFIED | Contains `CREATE TABLE route_executions`, `route_diagrams`, `agent_metrics`; correct ENGINE, ORDER BY, PARTITION BY, TTL with `toDateTime()` cast |
| `docker-compose.yml` | Local ClickHouse service | VERIFIED | `clickhouse/clickhouse-server:25.3`; ports 8123/9000; init volume mount; credentials configured |
| `cameleer3-server-core/src/main/java/com/cameleer3/server/core/storage/ExecutionRepository.java` | Repository interface for execution batch inserts | VERIFIED | Declares `void insertBatch(List<RouteExecution> executions)` |
#### Plan 01-02 Artifacts
| Artifact | Expected | Status | Details |
|---|---|---|---|
| `cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/ExecutionController.java` | POST /api/v1/data/executions endpoint | VERIFIED | 79 lines; `@PostMapping("/executions")`; handles single/array via raw String parsing; returns 202 or 503 + Retry-After |
| `cameleer3-server-app/src/main/java/com/cameleer3/server/app/storage/ClickHouseExecutionRepository.java` | Batch insert to route_executions via JdbcTemplate | VERIFIED | 118 lines; `@Repository`; `BatchPreparedStatementSetter`; flattens processor tree to parallel arrays |
| `cameleer3-server-app/src/main/java/com/cameleer3/server/app/ingestion/ClickHouseFlushScheduler.java` | Scheduled drain of WriteBuffer into ClickHouse | VERIFIED | 160 lines; `@Scheduled(fixedDelayString="${ingestion.flush-interval-ms:1000}")`; implements `SmartLifecycle` for shutdown drain |
| `cameleer3-server-core/src/main/java/com/cameleer3/server/core/ingestion/IngestionService.java` | Routes data to appropriate WriteBuffer instances | VERIFIED | 115 lines; plain class; `acceptExecution`, `acceptExecutions`, `acceptDiagram`, `acceptDiagrams`, `acceptMetrics`; delegates to typed `WriteBuffer` instances |
#### Plan 01-03 Artifacts
| Artifact | Expected | Status | Details |
|---|---|---|---|
| `cameleer3-server-app/src/main/java/com/cameleer3/server/app/interceptor/ProtocolVersionInterceptor.java` | Validates X-Cameleer-Protocol-Version:1 header on data endpoints | VERIFIED | 47 lines; implements `HandlerInterceptor.preHandle`; returns 400 JSON on missing/wrong version |
| `cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/WebConfig.java` | Registers interceptor with path patterns | VERIFIED | 35 lines; `addInterceptors` registers interceptor on `/api/v1/data/**` and `/api/v1/agents/**`; excludes health, api-docs, swagger-ui |
| `cameleer3-server-app/src/test/java/com/cameleer3/server/app/AbstractClickHouseIT.java` | Shared Testcontainers base class for integration tests | VERIFIED | 73 lines; static `ClickHouseContainer`; `@DynamicPropertySource`; `@BeforeAll` schema init from SQL file; `JdbcTemplate` exposed to subclasses |
---
### Key Link Verification
#### Plan 01-01 Key Links
| From | To | Via | Status | Details |
|---|---|---|---|---|
| `ClickHouseConfig.java` | `application.yml` | `spring.datasource` properties | VERIFIED | `application.yml` defines `spring.datasource.url`, `username`, `password`, `driver-class-name`; `ClickHouseConfig` creates `JdbcTemplate(dataSource)` relying on Spring Boot auto-config |
| `IngestionConfig.java` | `application.yml` | `ingestion.*` properties | VERIFIED | `application.yml` defines `ingestion.buffer-capacity`, `batch-size`, `flush-interval-ms`; `IngestionConfig` is `@ConfigurationProperties(prefix="ingestion")` |
#### Plan 01-02 Key Links
| From | To | Via | Status | Details |
|---|---|---|---|---|
| `ExecutionController.java` | `IngestionService.java` | Constructor injection | VERIFIED | `ExecutionController(IngestionService ingestionService, ...)` — `IngestionService` injected and called on every POST |
| `IngestionService.java` | `WriteBuffer.java` | offer/offerBatch calls | VERIFIED | `executionBuffer.offerBatch(executions)` and `executionBuffer.offer(execution)` in `acceptExecutions`/`acceptExecution` |
| `ClickHouseFlushScheduler.java` | `WriteBuffer.java` | drain call on scheduled interval | VERIFIED | `executionBuffer.drain(batchSize)` inside `flushExecutions()` called by `@Scheduled flushAll()` |
| `ClickHouseFlushScheduler.java` | `ClickHouseExecutionRepository.java` | insertBatch call | VERIFIED | `executionRepository.insertBatch(batch)` in `flushExecutions()` |
| `ClickHouseFlushScheduler.java` | `ClickHouseDiagramRepository.java` | store call after drain | VERIFIED | `diagramRepository.store(graph)` for each item drained in `flushDiagrams()` |
| `ClickHouseFlushScheduler.java` | `ClickHouseMetricsRepository.java` | insertBatch call after drain | VERIFIED | `metricsRepository.insertBatch(batch)` in `flushMetrics()` |
#### Plan 01-03 Key Links
| From | To | Via | Status | Details |
|---|---|---|---|---|
| `WebConfig.java` | `ProtocolVersionInterceptor.java` | addInterceptors registration | VERIFIED | `registry.addInterceptor(protocolVersionInterceptor).addPathPatterns(...)` |
| `application.yml` | Actuator health endpoint | `management.endpoints` config | VERIFIED | `management.endpoints.web.base-path: /api/v1` and `exposure.include: health` |
| `application.yml` | springdoc | `springdoc.api-docs.path` and `swagger-ui.path` | VERIFIED | `springdoc.api-docs.path: /api/v1/api-docs` and `springdoc.swagger-ui.path: /api/v1/swagger-ui` |
---
### Requirements Coverage
| Requirement | Source Plan | Description | Status | Evidence |
|---|---|---|---|---|
| INGST-01 (#1) | 01-02 | POST /api/v1/data/executions returns 202 | SATISFIED | `ExecutionController`, `ExecutionControllerIT.postSingleExecution_returns202` and `postArrayOfExecutions_returns202` |
| INGST-02 (#2) | 01-02 | POST /api/v1/data/diagrams returns 202 | SATISFIED | `DiagramController`, `DiagramControllerIT.postSingleDiagram_returns202` and `postArrayOfDiagrams_returns202` |
| INGST-03 (#3) | 01-02 | POST /api/v1/data/metrics returns 202 | SATISFIED | `MetricsController`, `MetricsControllerIT.postMetrics_returns202` |
| INGST-04 (#4) | 01-01 | In-memory batch buffer with configurable flush interval/size | SATISFIED | `WriteBuffer` with `ArrayBlockingQueue`; `IngestionConfig` with `buffer-capacity`, `batch-size`, `flush-interval-ms`; `ClickHouseFlushScheduler` drains on interval |
| INGST-05 (#5) | 01-01, 01-02 | 503 when write buffer is full | SATISFIED | `ExecutionController` checks `!accepted` and returns `503` + `Retry-After: 5`; `BackpressureIT.whenBufferFull_returns503WithRetryAfter` |
| INGST-06 (#6) | 01-01, 01-03 | ClickHouse TTL expires data after 30 days | SATISFIED | `01-schema.sql` TTL clauses `toDateTime(start_time) + toIntervalDay(30)` on `route_executions` and `agent_metrics`; `HealthControllerIT.ttlConfiguredOnRouteExecutions` and `ttlConfiguredOnAgentMetrics` |
| API-01 (#28) | 01-03 | All endpoints follow /api/v1/... path structure | SATISFIED | All controllers use `@RequestMapping("/api/v1/data")`; actuator at `/api/v1`; springdoc at `/api/v1/api-docs` |
| API-02 (#29) | 01-03 | API documented via OpenAPI/Swagger | SATISFIED | `springdoc-openapi 2.8.6` in pom; `@Operation`/`@Tag` annotations on controllers; `OpenApiIT.apiDocsReturnsOpenApiSpec` |
| API-03 (#30) | 01-03 | GET /api/v1/health endpoint | SATISFIED | Spring Boot Actuator health at `/api/v1/health`; `HealthControllerIT.healthEndpointReturns200WithStatus` |
| API-04 (#31) | 01-03 | X-Cameleer-Protocol-Version:1 header validated | SATISFIED | `ProtocolVersionInterceptor` returns 400 on missing/wrong version; `ProtocolVersionIT` with 5 test cases |
| API-05 (#32) | 01-03 | Unknown JSON fields accepted | SATISFIED | `spring.jackson.deserialization.fail-on-unknown-properties: false` in `application.yml`; `ForwardCompatIT.unknownFieldsInRequestBodyDoNotCauseError` |
**All 11 phase-1 requirements: SATISFIED**
No orphaned requirements — all 11 IDs declared in plan frontmatter match the REQUIREMENTS.md Phase 1 assignment.
---
### Anti-Patterns Found
No anti-patterns detected. Scanned all source files in `cameleer3-server-app/src/main` and `cameleer3-server-core/src/main` for TODO/FIXME/PLACEHOLDER/stub return patterns. None found.
One minor observation (not a blocker):
| File | Observation | Severity | Impact |
|---|---|---|---|
| `BackpressureIT.java:79-103` | `bufferedDataNotLost_afterBackpressure` asserts `getDiagramBufferDepth() >= 3` rather than querying ClickHouse after a flush. Verifies data stays in buffer, not that it ultimately persists. | Info | Not a blocker — the scheduler flush path for diagrams is fully verified by `DiagramControllerIT.postDiagram_dataAppearsInClickHouseAfterFlush`. The test correctly guards against the buffer accepting data but discarding it before flush. |
Also notable (by design): `ClickHouseExecutionRepository` sets `agent_id = ""` for all inserts (line 59), since the HTTP controller does not extract an agent ID from headers. This is an intentional gap left for Phase 3 (agent registry) and does not block Phase 1 goal achievement.
---
### Human Verification Required
None. All phase-1 success criteria are verifiable programmatically. Integration tests with Testcontainers cover the full stack including ClickHouse.
One item that would benefit from a quick runtime smoke test if the team desires confidence beyond the test suite:
**Optional smoke test:** Run `docker compose up -d`, then POST to `/api/v1/data/executions` with curl, wait 2 seconds, query ClickHouse directly to confirm the row arrived. This is already covered by `ExecutionControllerIT` against Testcontainers but can be done end-to-end against Docker Compose if desired.
---
### Gaps Summary
No gaps. All phase goal truths are verified, all required artifacts exist and are substantively implemented, all key wiring links are confirmed, and all 11 requirements are satisfied. The phase delivers on its stated goal:
> Agents can POST execution data, diagrams, and metrics to the server, which batch-writes them to ClickHouse with TTL retention and backpressure protection.
Specific confirmations:
- **Batch buffering and flush:** `WriteBuffer` (ArrayBlockingQueue) decouples HTTP from ClickHouse; `ClickHouseFlushScheduler` drains at configurable interval with graceful shutdown drain via `SmartLifecycle`
- **Backpressure:** `WriteBuffer.offer/offerBatch` returning false causes controllers to return `503 Service Unavailable` with `Retry-After: 5` header
- **TTL retention:** ClickHouse DDL includes `TTL toDateTime(start_time) + toIntervalDay(30)` on `route_executions` and `TTL toDateTime(collected_at) + toIntervalDay(30)` on `agent_metrics`, verified by integration test querying `SHOW CREATE TABLE`
- **API foundation:** Health at `/api/v1/health`, OpenAPI at `/api/v1/api-docs`, protocol version header enforced on data/agent paths, unknown JSON fields accepted
---
*Verified: 2026-03-11*
*Verifier: Claude (gsd-verifier)*