---
verdict: needs-attention
remediation_round: 0
---

# Milestone Validation: M012

## Success Criteria Checklist
- [x] **Multi-token AND search across all metadata fields** — PASS. S01 summary confirms tokenize-by-whitespace → per-token OR across fields → AND all tokens. Fields covered: title, summary, topic_category, topic_tags (array_to_string), creator name (via JOIN). 19 tests pass including 6 new multi-token AND tests.
- [x] **Partial matches fallback on zero AND results** — PASS. S01 implemented `partial_matches` in SearchResponse schema, backend `_keyword_partial_matches` fallback, and frontend three-way rendering (exact → partial → empty). Tests cover partial_matches trigger logic.
- [x] **Sort controls on all list views** — PASS. S02 added SortDropdown component to SearchResults, SubTopicPage, and CreatorDetail. Backend sort param on search, subtopic, category topics, and techniques endpoints. SQL ORDER BY for single-source, Python sort for mixed sources.
- [x] **Session-persistent sort preference** — PASS. S02 useSortPreference hook backed by sessionStorage with shared key across all pages. Verified: changing sort persists across navigation within session.
- [x] **Enriched Qdrant embeddings with creator/tags** — PASS. S01/T02 enriched stage 6 embedding text with creator_name and topic_tags for both technique pages and key moments. Batch creator resolution avoids N+1. Reindex-all admin endpoint added.

## Slice Delivery Audit
| Slice | Claimed Deliverable | Evidence | Verdict |
|-------|---------------------|----------|---------|
| S01: Multi-Field Composite Search | Type 'keota snare' → results matching both tokens across fields | Backend: multi-token AND with cross-field matching, 19 tests pass (6 new). Frontend: PartialMatchResults component, three-way rendering. Qdrant embeddings enriched with creator_name + topic_tags. Reindex-all endpoint. | ✅ Delivered |
| S02: Sort Controls on All List Views | Every list view shows sort dropdown, persists across navigation | Backend: sort param on 4 endpoints. Frontend: SortDropdown + useSortPreference hook on 3 pages. Browser-verified on ub01:8096 — sort changes update results, sessionStorage persists. | ✅ Delivered |

## Cross-Slice Integration
S01 provides multi-field composite search endpoints. S02 depends on S01 and extends the search endpoint with sort param. Integration is clean:
- S02's sort param (`backend/routers/search.py`) builds on S01's SearchService changes (`backend/search_service.py`) — `_apply_sort` operates on the enriched result dicts that S01's multi-token logic produces.
- S02's frontend SortDropdown integrates into `SearchResults.tsx` which S01 modified for partial_matches — no conflicts reported.
- No boundary mismatches detected. Both slices modify overlapping files (search_service.py, search router, SearchResults.tsx, public-client.ts, App.css) and both summaries report clean builds and tests.

## Requirement Coverage
- **R005 (Search-First Web UI):** Advanced by S01 (multi-token AND search improves relevance for composite queries) and S02 (sort controls on all list views improve findability).
- **R009 (Qdrant Vector Search Integration):** Advanced by S01/T02 (enriched embeddings with creator_name and topic_tags for better semantic coverage).
- **R015 (30-Second Retrieval Target):** Advanced by S01 (multi-token AND reduces result noise, helping users find specific techniques faster).

All three requirements listed in the unit header are covered by slice deliverables.

## Verification Class Compliance
### Contract Verification
**Status: ✅ Addressed.** S01: 19 backend tests pass (13 updated + 6 new) covering multi-token AND, cross-field matching, partial_matches, topic_tags, and creator genres. S02: curl verification of sort params on search, subtopic, and techniques endpoints. Frontend TypeScript compilation and Vite build clean for both slices.

### Integration Verification
**Status: ✅ Addressed.** S01: End-to-end flow verified — frontend search box → API → keyword/semantic → enriched results with partial_matches. S02: Sort dropdown → public-client sort param → API → sorted results, with sessionStorage persistence verified via browser on ub01:8096.

### Operational Verification
**Status: ⚠️ Partially addressed.** All containers healthy on ub01 after deployment (API, worker, web, watcher, qdrant, db, redis, ollama). However, no explicit latency measurement was captured to prove "search latency stays under 500ms". No evidence of regression testing on existing search/browse pages beyond the fact that existing tests pass and builds succeed. The operational verification class is technically unproven for the latency claim, though the deployment is confirmed healthy.

### UAT Verification
**Status: ⚠️ Written but not executed.** Both S01 and S02 have detailed UAT test case documents (10 and 12 test cases respectively). S02 summary reports browser verification on ub01:8096 confirming sort functionality. S01 notes that running deployment needs container rebuild + reindex to pick up new code. UAT documents are comprehensive but formal manual UAT execution against production deployment is deferred to post-merge deploy.


## Verdict Rationale
Both slices delivered their claimed outputs with strong evidence: backend tests, TypeScript compilation, Vite builds, and browser verification on ub01. Cross-slice integration is clean. All three requirements (R005, R009, R015) are advanced. Two minor gaps prevent a clean pass: (1) No explicit latency measurement for the "search latency under 500ms" operational criterion — the system is deployed and healthy but the specific metric wasn't captured. (2) UAT test cases are written but formal execution is deferred to post-deploy (S01 notes containers need rebuild + reindex). Neither gap is material enough to block completion — they represent post-deploy verification items, not missing functionality.
