From 878e7f5a08226fd3b59bf33d92a5a84b238b8086 Mon Sep 17 00:00:00 2001 From: shrimbly Date: Mon, 12 Jan 2026 23:06:06 +1300 Subject: [PATCH] docs(13-01): complete content deduplication plan Tasks completed: 2/2 - Add content hashing to save-generation API - Add duplicate detection response handling SUMMARY: .planning/phases/13-fix-duplicate-generations/13-01-SUMMARY.md --- .planning/ROADMAP.md | 8 +- .planning/STATE.md | 22 +++-- .../13-01-SUMMARY.md | 96 +++++++++++++++++++ 3 files changed, 113 insertions(+), 13 deletions(-) create mode 100644 .planning/phases/13-fix-duplicate-generations/13-01-SUMMARY.md diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md index e8fb4f1e..17ba9d93 100644 --- a/.planning/ROADMAP.md +++ b/.planning/ROADMAP.md @@ -157,16 +157,16 @@ Plans: Plans: - [x] 12-01: Extended cache TTL, fixed isImageInput, fixed stale node data in execution -#### Phase 13: Fix Duplicate Generations +#### Phase 13: Fix Duplicate Generations ✅ **Goal**: Fix image deduplication - generations folder has duplicate images due to hashing failure **Depends on**: Phase 12 **Research**: Likely (investigate current hashing implementation) **Research topics**: Current save-generation hashing logic, why duplicates are being created -**Plans**: TBD +**Plans**: 1 plan Plans: -- [ ] 13-01: TBD (run /gsd:plan-phase 13 to break down) +- [x] 13-01: Add MD5 content hashing and deduplication to save-generation API #### Phase 14: Fix Drag-Connect Node Creation Bugs @@ -198,5 +198,5 @@ Phases execute in numeric order: 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → | 10. Node Autosizing | v1.1 | 1/1 | Complete | 2026-01-12 | | 11. UI Polish | v1.1 | 1/1 | Complete | 2026-01-12 | | 12. Model Improvements | v1.1 | 1/1 | Complete | 2026-01-12 | -| 13. Fix Duplicate Generations | v1.1 | 0/? | Not started | - | +| 13. Fix Duplicate Generations | v1.1 | 1/1 | Complete | 2026-01-12 | | 14. Fix Drag-Connect Node Creation Bugs | v1.1 | 0/? | Not started | - | diff --git a/.planning/STATE.md b/.planning/STATE.md index 66bda5ed..8bd3c405 100644 --- a/.planning/STATE.md +++ b/.planning/STATE.md @@ -5,22 +5,22 @@ See: .planning/PROJECT.md (updated 2026-01-09) **Core value:** Provider infrastructure that dynamically discovers models from external APIs, enabling users to access hundreds of image/video generation models without hardcoding schemas. -**Current focus:** Phase 13 - Fix Duplicate Generations +**Current focus:** Phase 14 - Fix Drag-Connect Node Creation Bugs ## Current Position -Phase: 12 of 14 (Model Improvements) +Phase: 13 of 14 (Fix Duplicate Generations) Plan: 1 of 1 complete Status: Phase complete -Last activity: 2026-01-12 - Completed Phase 12 fixes +Last activity: 2026-01-12 - Completed 13-01-PLAN.md -Progress: ██████░░░░ 50% +Progress: ███████░░░ 55% ## Performance Metrics **Velocity:** -- Total plans completed: 20 -- Average duration: 7.0 min +- Total plans completed: 21 +- Average duration: 6.8 min - Total execution time: 2.4 hours **By Phase:** @@ -38,9 +38,11 @@ Progress: ██████░░░░ 50% | 9. Video History | 1/1 | 12 min | 12 min | | 10. Node Autosizing | 1/1 | 2 min | 2 min | | 11. UI Polish | 1/1 | 8 min | 8 min | +| 12. Model Improvements | 1/1 | - | - | +| 13. Fix Duplicate Generations | 1/1 | 1 min | 1 min | **Recent Trend:** -- Last 5 plans: 4 min, 14 min, 12 min, 2 min, 8 min +- Last 5 plans: 14 min, 12 min, 2 min, 8 min, 1 min - Trend: Fast execution with established patterns ## Accumulated Context @@ -89,6 +91,8 @@ Recent decisions affecting current work: - isImageInput() uses word-boundary checks (not substring) to avoid matching num_images - Workflow execution gets fresh node data from store (not stale captured array) - regenerateNode includes parameters in request body +- MD5 content hashing for generation deduplication (fast, collision resistance not critical) +- Hash prefix in filename for O(1) duplicate lookup ### Deferred Issues @@ -109,6 +113,6 @@ Recent decisions affecting current work: ## Session Continuity Last session: 2026-01-12 -Stopped at: Phase 12 Model Improvements completed +Stopped at: Phase 13 Fix Duplicate Generations completed Resume file: None -Next action: Plan Phase 13 (Fix Duplicate Generations) +Next action: Plan Phase 14 (Fix Drag-Connect Node Creation Bugs) diff --git a/.planning/phases/13-fix-duplicate-generations/13-01-SUMMARY.md b/.planning/phases/13-fix-duplicate-generations/13-01-SUMMARY.md new file mode 100644 index 00000000..037e4c5e --- /dev/null +++ b/.planning/phases/13-fix-duplicate-generations/13-01-SUMMARY.md @@ -0,0 +1,96 @@ +--- +phase: 13-fix-duplicate-generations +plan: 01 +subsystem: api +tags: [deduplication, md5, file-storage] + +# Dependency graph +requires: + - phase: 06-video-and-polish + provides: save-generation API for images and videos +provides: + - Content-based deduplication for generations folder + - Hash-prefixed filenames for O(1) duplicate lookup + - isDuplicate response field for caller awareness +affects: [] + +# Tech tracking +tech-stack: + added: [] + patterns: [content-hash-deduplication, hash-prefixed-filenames] + +key-files: + created: [] + modified: [src/app/api/save-generation/route.ts] + +key-decisions: + - "MD5 for content hashing - fast for binary data, collision resistance not critical for dedup" + - "Hash prefix in filename - enables O(1) duplicate check without reading file contents" + +patterns-established: + - "Content deduplication via hash prefix in filename" + +issues-created: [] + +# Metrics +duration: 1min +completed: 2026-01-12 +--- + +# Phase 13 Plan 01: Add Content Deduplication Summary + +**MD5 content hashing prevents duplicate files in generations folder with hash-prefixed filenames for O(1) lookup** + +## Performance + +- **Duration:** 1 min +- **Started:** 2026-01-12T10:03:51Z +- **Completed:** 2026-01-12T10:04:52Z +- **Tasks:** 2 +- **Files modified:** 1 + +## Accomplishments + +- Added MD5 content hashing to save-generation API +- Implemented duplicate detection by hash prefix lookup +- Changed filename format to `{hash}_{prompt}.{ext}` for fast dedup checks +- Added `isDuplicate` boolean to API response for caller awareness +- Added deduplication event logging for observability + +## Task Commits + +Each task was committed atomically: + +1. **Task 1 & 2: Content hashing and duplicate detection** - `0e496bc` (feat) + +**Plan metadata:** (this commit) + +_Note: Tasks 1 and 2 were completed together as the implementation naturally combined both concerns._ + +## Files Created/Modified + +- `src/app/api/save-generation/route.ts` - Added crypto import, hash computation, duplicate check, hash-prefixed filenames, isDuplicate response field + +## Decisions Made + +- **MD5 over SHA256:** MD5 is faster for binary data and collision resistance is not critical for local file deduplication (worst case is a rare false duplicate, not a security issue) +- **Hash in filename:** Enables O(1) duplicate lookup via `files.find(f => f.startsWith(hash))` instead of reading/hashing all existing files + +## Deviations from Plan + +None - plan executed exactly as written. + +## Issues Encountered + +None + +## Next Phase Readiness + +- Phase 13 complete (single plan phase) +- Deduplication active for all new generations +- Existing files in generations folder (without hash prefix) will not be deduplicated against, but new files will deduplicate against each other +- Ready for Phase 14: Fix Drag-Connect Node Creation Bugs + +--- +*Phase: 13-fix-duplicate-generations* +*Completed: 2026-01-12*