Every step,
from the first commit.

Follow-up dead-code removal now that nothing is deployed: Duplicate detection (server side worked, but no UI ever called it): - Delete POST /uploads/check-duplicates, the frontend calculateFileFingerprint/checkForDuplicates helpers, the worker's quick-fingerprint computation and Redis quickhash cache, the computeQuickFingerprint util + its tests, and the samples.quick_hash column (migration 0030 reverted outright — it only ever existed on this branch). The content hash stays: the analysis worker still uses it to dedup identical files. Mollie (replaced by Stripe before launch; backend/src was already Mollie-free): - Strip the mollie_* columns and indexes from migrations 0003, 0004 and 0007, and turn 0015 (Mollie Connect onboarding columns) into a kept-for-sequence no-op. The Stripe migration (0021) adds its columns fresh with no reference to the Mollie ones, so fresh databases now come up without stray payment-provider columns. Checked but intentionally NOT removed: auth/password.ts has no legacy hash fallback — its "legacy" mention is a defensive catch that maps malformed hashes to a failed login instead of a 500. Co-Authored-By: Claude Fable 5 <[email redacted]> Claude-Session: [private session redacted]

The app is not live, so disabled/legacy systems and unreferenced code are deleted outright instead of being kept for compatibility. Chunked/resumable upload system (disabled since the move to direct presigned uploads): - Delete the legacy /uploads/chunked/* routes, the chunk-assembly queue and its worker handler, chunk session state (Lua scripts, chunk-set tracking, progress/missing-chunk helpers, chunk-size heuristics), the chunk upload rate limit, and the orphaned-chunk cleanup stubs. - Delete the cleanup queue entirely — its only producer was the chunk-assembly handler. - UploadSession is now a minimal direct-upload record (no uploadMode, chunk counts, status machine, storagePrefix, or jobId); staleness is purely presigned-URL-expiry age. The completion lock is renamed accordingly (lockSessionForCompletion). Upload endpoints with no consumers: - Remove GET /uploads (list), GET /uploads/:id/status, GET /uploads/:id/job, POST /uploads/batch/status, POST /uploads/cleanup, and DELETE /uploads/sessions. The kept surface is initiate, batch initiate, complete, abort, and check-duplicates. - Remove the matching frontend API functions, the five unconsumed upload hooks (single-file mutation, folder-as-pack mutation, session list/cleanup/force-delete), the uploads query keys, and the resumable-upload localStorage cleanup (nothing writes those keys). Dead exports: - clap-client: embedText / embedAudioFromS3Key / embedAudioBytes (the classify endpoints are the live path). - similarity-search: cosineSimilarity / isPgVectorAvailable. - storage: the unused storage object + Storage interface, getProxyUrl, uploadParallel, the 5GB MAX_FILE_SIZE (the 500MB audio limit at initiate is the real gate), and unused config getters. Docs updated to match (worker job list, uploads route description). Deliberately kept: calculateFileFingerprint / checkForDuplicates and the /uploads/check-duplicates endpoint — the duplicate-detection feature is functional server-side and awaiting UI wiring. Co-Authored-By: Claude Fable 5 <[email redacted]> Claude-Session: [private session redacted]

Uploads: - Stop the stale-session auto-cleanup from deleting in-flight direct uploads (and their storage objects): direct sessions never report chunk progress, so they are now only reaped after the presigned URL expires (45 min), in both the route-level and worker-level cleanup. The triplicated route cleanup block is factored into one helper. - Verify the actual uploaded object size at /complete (presigned PUTs don't enforce one): reject oversized files, re-check the storage quota when the real size exceeds the declared size, and record the real size on the sample. - Enforce MAX_AUDIO_FILE_SIZE (500MB) at initiate instead of failing after the user has uploaded the whole file. - Key batch-initiated upload sessions by request index instead of file name: duplicate basenames across pack folders (Kicks/01.wav, Snares/01.wav) previously shared one session and storage key, silently losing a file. - Never persist a session for a request that is about to be rejected. Duplicate detection: - Store the browser-style quick fingerprint (first 1MB + last 1MB + size) on samples (new quick_hash column, migration 0030) and in the Redis cache; the pre-upload check only ever had this fingerprint, so matching it against the full content hash silently never fired for files over 2MB. - Scope /uploads/check-duplicates to the requesting user (it leaked other users' sample and pack names via content-hash probing) and replace its per-fingerprint queries with one DB query, one pack query, and one Redis MGET. - Let the analysis job fall back to the sample's stored content hash so analysis dedup can actually fire (jobs are enqueued before the hash is computed). Analysis worker: - Stop wiping folder-derived tags and genre when analysis completes (and stop copying the other sample's tags on the dedup path). - Recover stale CLAP embedding jobs at startup; they were the only queue omitted, so crashed embedding jobs stayed stuck forever. AI search / CLAP: - Map the query planner's drum-type vocabulary onto the CLAP taxonomy labels it filters ("perc"/"rim" -> percussion, bass -> bass+808, vocal -> vocal+vocal_chop); the mismatch guaranteed zero-result searches. Keep all requested types instead of only the first. - Add a 2.5s timeout + reduced retries to the planner LLM call and cache plans in Redis so search doesn't hang on a slow provider. - Stop caching a rejected facet-embedding promise, which permanently broke AI search after one transient CLAP outage. - Cache the structural pgvector readiness checks (three catalog queries per search) and capture the pgvector version; run the vector query with a raised hnsw.ef_search and iterative scans (pgvector >= 0.8) so scoped searches stop under-returning. - Cache CLAP text embeddings in Redis (they're deterministic), which also removes the double embedding of every AI-search query. - Decode only the model's 10s input window in the CLAP service instead of relying on the HF processor's rand_trunc: embeddings for clips longer than 10s were a random crop and differed on every run. Library: - Restrict full-text search to user-meaningful text fields; it previously built a per-row tsvector over ~60 columns, matching queries like "true" or "120" against internal state. - Move UMAP computation to a background worker queue (it blocked the API event loop), batch the projection writes, and use a seeded PRNG so layouts are reproducible. - Remove the dead LLM categorization pass (no callers; the worker nulls its outputs). Frontend: - Fix the similar-samples bar color ramp so higher similarity always reads as better. Co-Authored-By: Claude Fable 5 <[email redacted]> Claude-Session: [private session redacted]

Add email auth, pack preview in beat maker, and subscription drawer

Sequencer <-> storefront integration: - Pack pages get a "Try these sounds in the beat maker" card linking to /studio?creator=<slug>&pack=<slug> - The studio loads a published pack's preview samples (up to 8) as sequencer tracks via the public preview endpoint, so guests can jam with a pack before buying, and shows a dismissible banner linking back to the pack with a buy CTA UX fixes: - Add /auth/signup and /auth/login pages (email/password via existing backend endpoints plus Google), fixing three checkout-flow links that 404'd; guest emails are carried over via ?email= so purchases link up - Replace two dead /settings/subscription upgrade CTAs with buttons that open the global subscription drawer (drawer state moved into the subscription store) - Fix /dashboard bouncing signed-in users to a bogus /auth/callback URL on hard refresh: wait for the auth check, show an inline sign-in prompt when logged out - Point the reset-password success CTA at the new sign-in page - Make the header logo link home; add a sign-in button to the library's signed-out state - Allow http/ws localhost in the CSP during dev only: the enforced https:-only connect-src blocked every browser call to the local backend, breaking the app in local development Co-Authored-By: Claude Fable 5 <[email redacted]> Claude-Session: [private session redacted]

Use existing WaveSurfer player and melt-ui sliders in tag generator

Refactor the producer tag generator UI to reuse the project's existing audio/UX components instead of bespoke ones, for a consistent experience: - Playback and waveform display now go through the shared Waveform (WaveSurfer) component. Each FX change re-renders the tag to a WAV blob URL that WaveSurfer loads, so the waveform and playback always reflect the applied effects — and the global audio coordinator ensures only one tag plays at a time, like the rest of the app. - FX controls now use a melt-ui Slider builder via a small reusable FxSlider component, matching how the rest of the app builds interactive primitives. - Aligned button/card/input styling with app conventions (hover:bg-brand-500, rounded-lg cards, neutral surfaces). Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Add free producer tag generator with browser-based FX

A public, no-auth page (/tag-generator) that synthesizes five distinct AI voice tags from a producer's phrase and captures their email as a lead — modeled on plugmytag.com. Reuses the existing OpenAI integration. Backend: - producer-tag service generates 5 hand-tuned voice presets via OpenAI TTS (gpt-4o-mini-tts) using the configured OPENAI_API_KEY / ENABLE_LLM_ANALYSIS. - producer-tag-generator routes: generate (email capture + synthesis), fetch batch, stream dry audio, and MP3/WAV export. IP rate-limited, fails open if Redis is down. - New tables (producer_tag_leads / _batches / _voices) + migration 0029; batches expire after 7 days with an hourly cleanup task, like guest packs. - transcodeToMp3 ffmpeg helper for delivering FX-applied audio as MP3. Frontend: - /tag-generator page: lead form, five playable voice cards, full FX library (reverb, delay, stutter, pitch-shift, distortion) with presets + sliders, and royalty-free MP3/WAV downloads. - tag-fx engine applies effects entirely in-browser via OfflineAudioContext and encodes WAV client-side; MP3 export is transcoded server-side. - Discoverable CTA added to the marketing landing page. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Reconcile cycle-3 (all DONE, in main) and add six new handoff plans: test clean-skip, public pack pattern cap, folder N+1, admin regen bound, CSP enforcing, and SSE token cleanup. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Add structured sample-pack licensing and legal pages

library.ai-search.error.test.ts mock.module-replaced ../services/clap-search with a getSafeClapSearchFailure re-implemented around a local error subclass. bun's mock.module is global and persists across files, so that divergent implementation leaked into clap-search.test.ts and made it classify a real ClapSearchNotReadyError as a generic 503 (expected 200) — the intermittent CI failure. Reuse the real pure helpers from clap-search-policy in the mock and throw the real error class, so the mock can't diverge from production. Co-Authored-By: Claude Opus 4.8 <[email redacted]>

The full backend test suite intermittently failed "clap-search public failures > maps not-ready states to safe 200 responses": getSafeClapSearchFailure returned 503 instead of 200 because its instanceof ClapSearchNotReadyError check can see a different class instance than the error when this module is loaded more than once (bun's cross-file mock.module pollution in the full suite). Add a duck-typed fallback (name + readiness shape) so genuine not-ready errors are always mapped to a safe 200, regardless of module identity. Co-Authored-By: Claude Opus 4.8 <[email redacted]>

Co-Authored-By: Claude Opus 4.8 <[email redacted]>

The creator dashboard computed hasProSubscription from only the two Pro plans, so Team/Label subscribers saw the full 15% platform fee and a bogus "Upgrade to Pro" upsell. Use the shared isPaidSubscriptionPlan helper so all paid plans get the reduced fee, matching the fee shown in the subscription drawer. Co-Authored-By: Claude Opus 4.8 <[email redacted]>

Introduce versioned, BeatStars-style license templates (royalty-free standard + exclusive) as a backend source of truth, let sellers pick a license per pack, disclose the buyer's rights at the point of sale, snapshot the granted license immutably onto each purchase, and deliver a personalized LICENSE.txt inside every download zip. Adds a public /legal/licensing page. Migration 0028 adds sample_packs.license_type and the purchases license snapshot columns (hand-written + journal entry, matching the 0024-0027 convention; snapshots intentionally stop at 0023 in this repo). Co-Authored-By: Claude Opus 4.8 <[email redacted]>

Co-Authored-By: Claude Opus 4.8 <[email redacted]>

PackClapRow was an interface, which lacks the implicit index signature that drizzle's db.execute<T extends Record<string, unknown>> requires, breaking the backend typecheck gate. Convert it to a type alias. Co-Authored-By: Claude Opus 4.8 <[email redacted]>

Sources subscription/pricing/marketing copy from a single source of truth and fixes factual + plan-handling inconsistencies that drifted between the landing page, subscription drawer, dashboard, and library. - Add frontend source of truth `frontend/src/lib/config/plans.ts` (typed, `as const`) for plan ids/names/prices/fees/storage/seats/savings/taglines + the competitor-comparison line, with a note to keep it in sync with backend config / PRICING.md. - Landing page (`routes/+page.svelte`) now consumes `plans.ts` instead of hardcoded tier literals; correct the competitor claim (was "Beatstars (12%)"; PRICING.md says BeatStars takes 30% commission) and reframe to the "lower fee + more storage" story. - Fix SubscriptionDrawer plan-name bug: `team_monthly`/`team_yearly` wrongly displayed as "Free". Introduce shared `formatPlanName` helper (covers Free, Pro, Team) and a current-plan fee summary; make cancel/expiry/upgrade copy plan-agnostic ("reduced fee and extra storage" rather than "Pro features"). - StorageUsage upgrade prices, savings, and storage allowance now read live from the subscription API instead of hardcoded €9/€89/€19/100GB. - Library upgrade toasts use `formatPlanName` + live storage quota and drop the inaccurate "100GB / all Pro features" wording (was wrong for Team plans). - Fix the inaccurate competitor comment in `backend/src/config/index.ts` (BeatStars 30% commission, per PRICING.md). Co-Authored-By: Claude Opus 4.8 <[email redacted]>

The .claude/worktrees/ directory holds isolated git worktrees created for parallel subagents. It is transient and auto-cleaned, and must never be committed (it contains nested worktree git state). Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Add structural sample type classification (loop/one_shot/phrase)

The public pack detail endpoint now returns `displayType`; update the DB-backed test's expected shape (toEqual) accordingly and set instrument/sampleType on the fixture so it validates the instrument-preferred display label ("kick"). Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Render and search the consistent displayType (instrument, else structural sample type) in SampleSelector instead of the raw category family, matching the library grid and public pack pages. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Extend the displayType treatment to the remaining UI surfaces that show a sample "Type" so it stays consistent everywhere, not just the library grid: - Public creator pack page (creators.ts + /u/[slug]/pack/[packSlug]) rendered raw `drumType` (CLAP instrument), which is null until CLAP runs. Now it surfaces and renders `displayType` (instrument, else Essentia's structural sample type), so it is populated for any analyzed sample. - Pack-generator (guest samples) serializer now exposes sampleType/displayType; guest samples have no CLAP instrument, so it derives from the Essentia structural type / loop detection. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

The library "Type" column was inconsistent: it rendered a value that depended on CLAP fields, so when CLAP hadn't classified a sample only Essentia's isLoop survived — loops showed "loop" and everything else showed "—". The sample_type and instrument columns were also never surfaced by the API. Clean Essentia/CLAP split (each does what it's good at): - Essentia (always runs, DSP) now owns the STRUCTURAL sample_type (loop/one_shot/phrase), derived deterministically from loop detection + duration + onsets. This guarantees the Type column is never empty. - CLAP (semantic) owns the INSTRUMENT label (kick/808/vocal) and the coarse category family; it no longer clobbers Essentia's structural type (sample_type via COALESCE). - Surface sampleType/instrument/instrumentConfidence + a derived displayType ("instrument, else structural type") from both library and samples routes and the similar-samples row; the grid renders displayType. - Shared deriveDisplayType/deriveSampleType helpers (+ unit tests). - Backfill sample_type for existing analyzed rows in SQL so the column populates immediately without re-analysis; add sample_type to guest_samples. Key detection accuracy: - Add SpectralWhitening before HPCP in the tonal pipeline — the step Essentia's reference KeyExtractor uses. It flattens the spectral envelope so percussion bleed / a dominant fundamental no longer biases the chroma, which materially improves key accuracy on full-mix loops. Falls back safely if unavailable. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Remove legacy Essentia MFCC embedding; use CLAP for all audio similarity

Essentia service (Python): - Fix spectral centroid/rolloff to emit Hz directly (Centroid range=Nyquist, RollOff sampleRate) and drop the fragile normalized-position heuristic. - Fix bandwidth: was always 0 (wrong CentralMoments index + single frame). Now the per-frame spectral spread via CentralMoments(range=Nyquist)+DistributionShape. - Fix temporal centroid units (normalized position * envelope duration -> seconds). - Fix BPM alternatives: use the two peak-BPM indices (0, 3), not a weight. - Implement true peak (dBTP) via chunked 4x oversampling instead of sample peak. - Reset reused stateful algorithms between files so prior audio can't leak. - Remove the dead HarmonicPercussiveSourceSeparation scaffolding (not an Essentia algorithm; it was always a no-op) and run rhythm/tonal on the full signal. - Remove the hand-built 64-dim MFCC embedding; CLAP owns the audio embedding. - Remove dead code: unused loaders, thread pool, and the LFI-prone /analyze (path) and /analyze/batch endpoints; add spectral/rhythm/temporal regression tests. Backend (CLAP owns embeddings): - Drop the 64-dim Essentia embedding everywhere (AudioFeatures, worker writes, client mapper, unused path/batch/stats client fns). - Repoint similarity search and UMAP onto samples.clap_embedding (512-dim). - Derive pack audio character from real Essentia feature columns. - Enqueue CLAP for deduplicated samples so they still get an embedding/classification. - Migration 0026 drops the embedding column, embedding_vector mirror, sync trigger, and legacy indexes. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

CI intermittently failed to link `clap-search.test.ts` with "Export named 'CLAP_DEFAULT_MIN_SIMILARITY' not found in module clap-search.ts" — a Bun module-link flake: that pure unit test dragged in the heavy `clap-search.ts` graph (drizzle, ../db, ./clap-client) just to reach a handful of dependency-free helpers. Extract the pure pieces (relevance-cutoff resolution, readiness/failure classification, the not-ready error type) into `clap-search-policy.ts`, which has no DB/CLAP-client imports. `clap-search.ts` re-exports them (`export *`) so the library route and other importers are unchanged, and the unit test now imports the light policy module directly — removing the fragile load. typecheck + lint clean; clap-search test passes in isolation and the full local suite is green (0 fail). Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Verified that key-detection.ts, loop-detection.ts, superflux.ts, and cqt.ts form a closed, dead cluster: they reference only each other, nothing outside src/audio/ imports them, and the audio barrel's real consumers (worker, admin, pack-generator) only use ffmpeg/essentia-client symbols. The test suite uses its own local copies, not these modules. These were the standalone DSP helpers behind the in-process analyzer removed in the previous commit, so they are now unreachable. Remove the four modules (~1730 lines), trim the audio barrel to ffmpeg + essentia-client, and drop the now-unused meyda / @types/meyda dependencies (loop-detection was the only user), refreshing the lockfile. typecheck + lint clean; 68 audio/mapper unit tests pass; frozen-lockfile install verified. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

The legacy TypeScript analysis path (analyzeAudioWithTypeScript / analyzeAudioWithTypeScriptFromFile) and its entire DSP stack — BPM/beat tracking, key detection, LUFS, spectral features, loop detection, transients, the heuristic drum classifier, and MFCC embedding — were fully superseded by the Essentia microservice and CLAP zero-shot classification. They were unreferenced by every live entry point (which delegate to Essentia), so this was pure dead code: ~3150 lines. audio-analysis.ts now just delegates analysis to Essentia and layers the optional LLM categorization pass on top. Removed the orphaned imports (meyda, bun $, key-detection/loop-detection/superflux helpers) and refreshed the module header. No behavior change: the live paths (analyzeAudio, analyzeAudioFromFile, analyzeAudioFromFileWorker, analyzeAudioFromS3Key, analyzeAudioFull, categorizeWithLLM) are untouched, and all unit tests pass. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

CLAP zero-shot now owns sample type/instrument/tonality, so the hand-tuned spectral/envelope classifier and the duplicated key-gating policy are dead weight. Remove them and let measurement + CLAP speak for themselves. Essentia service: - Delete classification_rules.py (is_unclassified_percussive + key_is_reliable) - Delete analyze_classification (the ~250-line if/elif drum ladder) and its now-orphaned helpers (_band_energy_ratios, _normalize_entropy) - Drop DrumClassification model + classification from the response, and the extract_classification toggle - Replace the percussion/loop/duration-aware key_is_reliable gate with a small intrinsic floor in analyze(): analyze_tonal already nulls atonal keys; we now only drop a surviving key when BOTH its confidence and tonality are weak. Sample-type-aware key suppression is the CLAP tonality signal's job downstream. - Remove the obsolete classification unit tests Backend: - essentia-client.ts: drop ClassificationFeatures + classification from the contract; the mapper no longer derives drumType (always null now) — CLAP owns sample_type/instrument - worker.ts: the CLAP job now also writes the legacy drum_type/drum_type_confidence from the CLAP instrument so that column stays populated and consistent - Update essentia-client tests to assert the mapper leaves type to CLAP Note: the unrelated *dead* TypeScript classifier (classifyDrumType + analyzeAudioWithTypeScript* in audio-analysis.ts) is unreferenced and left for a separate cleanup. Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]

Use CLAP's shared text/audio space to classify samples instead of the heuristic spectral/envelope rules engine. The audio embedding already computed for semantic search is now also compared against a versioned bank of text prompts (taxonomy.py) and softmaxed per group to label each sample's sample type (one-shot/loop/phrase), instrument (kick, 808, vocal, ...) and tonality (tonal vs percussive). No training and no model files required. CLAP service: - taxonomy.py: versioned prompt bank + instrument->family map - classifier.py: dependency-free cosine/softmax scoring (unit-tested) - clap_model.py: cache label-prompt embeddings, embed_and_classify() - main.py: /classify and /classify-s3 return embedding + classification from a single forward pass; warm label cache on startup - tests/test_classifier.py: 17 tests covering taxonomy + scoring Backend: - clap-client.ts: typed classifyAudioBytes / classifyAudioFromS3Key - worker.ts: CLAP job now persists clap_embedding + sample_type, instrument, instrument_confidence, classification_source, and fills category when empty - schema + migration 0025: additive sample_type/instrument columns + indexes - clap-search.ts: filter by instrument / sample_type - backfill script: also enqueues rows missing classification Co-Authored-By: Claude Opus 4.8 <[email redacted]> Claude-Session: [private session redacted]