docs(phase-15): complete phase execution and verification
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@@ -124,7 +124,7 @@ Plans:
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| 12. Library CRUD & Data Integrity | v1.1 | 2/2 | Complete | 2026-03-15 |
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| 13. Library Views & Phantom Tracks | v1.1 | 2/2 | Complete | 2026-03-16 |
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| 14. Performance Optimization | v1.1 | 4/4 | Complete | 2026-03-15 |
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| 15. Schema Migration & Write Safety | 2/2 | Complete | 2026-03-16 | - |
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| 15. Schema Migration & Write Safety | 2/2 | Complete | 2026-03-16 | - |
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| 16. Tag Writing & Database Sync | v1.2 | 0/? | Not started | - |
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| 17. Single Track Edit | v1.2 | 0/? | Not started | - |
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| 18. Batch Edit | v1.2 | 0/? | Not started | - |
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@@ -2,10 +2,10 @@
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gsd_state_version: 1.0
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milestone: v1.2
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milestone_name: Tag Editing
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status: executing
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last_updated: "2026-03-16T22:13:45.000Z"
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status: unknown
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last_updated: "2026-03-16T22:21:06.448Z"
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progress:
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total_phases: 5
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total_phases: 1
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completed_phases: 1
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total_plans: 2
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completed_plans: 2
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@@ -0,0 +1,109 @@
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---
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phase: 15-schema-migration-write-safety
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verified: 2026-03-16T22:30:00Z
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status: passed
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score: 10/10 must-haves verified
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must_haves:
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truths:
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- "FTS5 search_index uses contentless_delete=1 after migration 8"
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- "DeleteSearchIndex performs a real DELETE for individual rows"
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- "Existing search queries return identical results after migration"
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- "Migration is idempotent — safe to re-run if interrupted"
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- "ClearSearchIndex still works for full rebuilds"
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- "AtomicWrite writes to a temp file then renames to target — original file is never in a half-written state"
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- "Temp files use .yj-tmp suffix"
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- "Cross-filesystem writes are rejected with a clear error"
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- "Original file permissions are preserved on the new file"
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- "Orphaned .yj-tmp files for the target path are cleaned up before writing"
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artifacts:
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- path: "backend/database/sql/schemas/search_index.sql"
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status: verified
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- path: "backend/database/database.go"
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status: verified
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- path: "backend/database/search.go"
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status: verified
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- path: "backend/database/search_test.go"
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status: verified
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- path: "backend/fileutil/atomicwrite.go"
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status: verified
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- path: "backend/fileutil/atomicwrite_test.go"
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status: verified
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---
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# Phase 15: Schema Migration & Write Safety Verification Report
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**Phase Goal:** The database and file system infrastructure supports safe, reversible tag editing — FTS5 rows can be deleted/updated and file writes never corrupt audio files
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**Verified:** 2026-03-16T22:30:00Z
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**Status:** passed
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**Re-verification:** No — initial verification
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## Goal Achievement
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### Observable Truths
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| # | Truth | Status | Evidence |
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|---|-------|--------|----------|
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| 1 | FTS5 search_index uses contentless_delete=1 after migration 8 | ✓ VERIFIED | `search_index.sql` line 7: `contentless_delete=1`; `database.go` line 1123 migration8 recreates with same; `search.go` line 152 ClearSearchIndex matches |
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| 2 | DeleteSearchIndex performs a real DELETE for individual rows | ✓ VERIFIED | `search.go` lines 124-133: `DELETE FROM search_index WHERE rowid = ?` — no longer a no-op; no-op comment removed (grep confirms zero matches for "no-op" in search.go) |
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| 3 | Existing search queries return identical results after migration | ✓ VERIFIED | All 11 existing search tests pass (TestSearchFTS_BasicTerm, _EmptyQuery, _SpecialCharacters, _MultiWord, _Diacritics, _Ranking, TestSearchFTSByFilename, TestSearchFTSTracks, TestClearSearchIndex, TestRebuildSearchIndex, TestInsertAndDeleteSearchIndex) — `go test` confirms 0 failures |
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| 4 | Migration is idempotent — safe to re-run if interrupted | ✓ VERIFIED | migration8ContentlessDelete (database.go lines 1096-1155) uses DROP IF EXISTS + CREATE IF NOT EXISTS + bulk INSERT from track_metadata — naturally idempotent; version check `if version < 8` prevents re-run after completion |
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| 5 | ClearSearchIndex still works for full rebuilds | ✓ VERIFIED | `search.go` lines 137-160: DROP + recreate with `contentless_delete=1`; TestClearSearchIndex and TestClearSearchIndexPreservesSchema both pass, confirming delete still works on recreated table |
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| 6 | AtomicWrite writes to a temp file then renames to target | ✓ VERIFIED | `atomicwrite.go` line 55: `os.Create(tmpPath)`, line 92: `os.Rename(tmpPath, targetPath)`; TestAtomicWrite_Success confirms content replaced atomically |
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| 7 | Temp files use .yj-tmp suffix | ✓ VERIFIED | `atomicwrite.go` line 21: `const tmpSuffix = ".yj-tmp"`, line 35: `tmpPath := targetPath + tmpSuffix`; TestAtomicWrite_SameDirectoryTempFile verifies observed path matches |
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| 8 | Cross-filesystem writes are rejected with a clear error | ✓ VERIFIED | `atomicwrite.go` lines 93-94: checks `errors.Is(err, syscall.EXDEV)` and wraps with `ErrCrossDevice`; line 16: `var ErrCrossDevice = errors.New(...)` exported sentinel |
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| 9 | Original file permissions are preserved on the new file | ✓ VERIFIED | `atomicwrite.go` lines 48-51: `os.Stat` to read mode, line 87: `os.Chmod(tmpPath, mode)` before rename; TestAtomicWrite_PermissionPreservation tests 0644, 0755, 0600 |
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| 10 | Orphaned .yj-tmp files for the target path are cleaned up before writing | ✓ VERIFIED | `atomicwrite.go` lines 38-45: `os.Lstat` + `os.Remove` on existing tmpPath; TestAtomicWrite_OrphanCleanup confirms orphan removed and new write succeeds |
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**Score:** 10/10 truths verified
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### Required Artifacts
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| Artifact | Expected | Status | Details |
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|----------|----------|--------|---------|
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| `backend/database/sql/schemas/search_index.sql` | FTS5 schema with contentless_delete=1 | ✓ VERIFIED | 10 lines, contains `contentless_delete=1` on line 7 |
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| `backend/database/database.go` | Migration 8 function | ✓ VERIFIED | 1279 lines; `migration8ContentlessDelete` at line 1096; called in `runMigrations` at line 328; sets `PRAGMA user_version = 8` |
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| `backend/database/search.go` | Real DeleteSearchIndex + updated ClearSearchIndex | ✓ VERIFIED | 467 lines; DeleteSearchIndex lines 124-133 (real DELETE); ClearSearchIndex lines 137-160 (contentless_delete=1 in CREATE) |
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| `backend/database/search_test.go` | Tests for delete, update cycle, ClearSearchIndex preservation | ✓ VERIFIED | 1130 lines (min_lines: 50 ✓); TestDeleteSearchIndex, TestSearchIndexUpdateCycle, TestClearSearchIndexPreservesSchema all present and passing |
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| `backend/fileutil/atomicwrite.go` | AtomicWrite function + ErrCrossDevice | ✓ VERIFIED | 102 lines (min_lines: 40 ✓); exports `AtomicWrite` and `ErrCrossDevice` |
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| `backend/fileutil/atomicwrite_test.go` | Comprehensive tests | ✓ VERIFIED | 293 lines (min_lines: 80 ✓); 7 test functions all passing with race detector |
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### Key Link Verification
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| From | To | Via | Status | Details |
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|------|----|-----|--------|---------|
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| `backend/database/database.go` | `backend/database/search.go` | migration 8 calls equivalent of RebuildSearchIndex (inlined SQL) | ✓ WIRED | migration8ContentlessDelete inlines DROP/CREATE/INSERT matching ClearSearchIndex+RebuildSearchIndex logic (deviation documented: runMigrations receives raw `*sql.DB`, not `*DB`) |
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| `backend/database/search.go` | `search_index.sql` | ClearSearchIndex CREATE matches schema file | ✓ WIRED | search.go line 151-152 `contentless_delete=1` matches search_index.sql line 7 exactly |
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| `backend/library/library.go` | `backend/database/search.go` | library calls InsertSearchIndex and DeleteSearchIndex | ✓ WIRED | library.go line 657 calls `l.db.DeleteSearchIndex(audioFile.ID)` for orphan cleanup; lines 1012, 1098 use InsertSearchIndex for scan operations |
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| `backend/fileutil/atomicwrite.go` | `os.Rename` | atomic rename from temp to target | ✓ WIRED | line 92: `os.Rename(tmpPath, targetPath)` |
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| `backend/fileutil/atomicwrite.go` | `os.Stat` | preserve original file permissions | ✓ WIRED | line 50: `os.Stat(targetPath)` reads mode; line 87: `os.Chmod(tmpPath, mode)` applies it |
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### Requirements Coverage
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| Requirement | Source Plan | Description | Status | Evidence |
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|-------------|------------ |-------------|--------|----------|
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| SCHEMA-01 | 15-01-PLAN | FTS5 search_index migrated to `contentless_delete=1` for safe row-level updates | ✓ SATISFIED | Schema file, ClearSearchIndex, migration 8 all contain `contentless_delete=1`; DeleteSearchIndex performs real DELETE; all tests pass |
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| SCHEMA-02 | 15-02-PLAN | Atomic file write utility (write-to-temp-then-rename in same directory) | ✓ SATISFIED | `backend/fileutil/atomicwrite.go` with callback API, .yj-tmp suffix, permission preservation, orphan cleanup, cross-device rejection; 7 passing tests |
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| WRITE-05 | 15-02-PLAN | All file writes use atomic write-to-temp-then-rename to prevent corruption | ✓ SATISFIED | AtomicWrite function creates temp, writes via callback, syncs, chmods, then renames atomically; error paths clean up temp file; TestAtomicWrite_CallbackError confirms original file untouched on failure |
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**Orphaned requirements:** None. REQUIREMENTS.md traceability table maps SCHEMA-01, SCHEMA-02, WRITE-05 to Phase 15. All three are accounted for in plans 15-01 and 15-02.
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### Anti-Patterns Found
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| File | Line | Pattern | Severity | Impact |
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|------|------|---------|----------|--------|
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| `backend/library/scan_test.go` | 654-665 | Stale comment: "DeleteSearchIndex on contentless FTS5 table is expected to error" — this is no longer true with contentless_delete=1 | ⚠️ Warning | Comment is misleading but test doesn't assert failure (uses `t.Log`); test still passes. No functional impact — cosmetic technical debt |
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### Human Verification Required
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None required. All truths are verifiable programmatically through code inspection and test execution. The phase is pure backend infrastructure with no UI components.
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### Gaps Summary
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No gaps found. All 10 observable truths are verified. All 6 artifacts exist, are substantive (not stubs), and are properly wired. All 3 requirements (SCHEMA-01, SCHEMA-02, WRITE-05) are satisfied. All key links are connected. All tests pass (search tests: 0.161s, fileutil tests: 1.035s with race detector). Four git commits verified: cb5155b, 56cd7e3, 4d64b5d, 0cdfe48.
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The one minor note is a stale comment in `backend/library/scan_test.go` (lines 654-665) that still describes `DeleteSearchIndex` as "expected to error" on contentless FTS5, which was true before Phase 15 but is now outdated. This is cosmetic and has no functional impact.
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---
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_Verified: 2026-03-16T22:30:00Z_
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_Verifier: Claude (gsd-verifier)_
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