5 Commits

Include renames

Author	SHA1	Message	Date
bvandeusenandClaude Opus 4.8	c1d143cf4a	feat(home): Songs-like → dedicated row + wider spread (#1491) ... Promote the best-performing surface ("Songs like {artist}", ~8% skip / ~86% completion) out of the shared Playlists carousel into its own Home row on both Android and web, and widen the daily build from 3 to 6 mixes so the dedicated row shows a wider spread. Server (internal/playlists): - PickSeedArtists candidate pool 5 → 12; pickSeedArtistsForDay now takes songsLikeSeedCount (6) instead of a hardcoded 3. Graceful degradation and daily rotation preserved. Android (HomeScreen.kt): - New songsLikeSection + buildSongsLikeRow; PlaylistsRow takes a title so it renders both the "Playlists" and "Songs like…" rows. buildOnlineRow / orderedRealPlaylists no longer reserve the 3 songs-like slots. Offline shows cached mixes (available-first), hides the row when none. Web (+page.svelte): - Dedicated "Songs like…" row from songsLikeRow; dropped the 3-slot cap and removed songs-like from the Playlists carousel. Tests: seed_selection_test.go, BuildPlaylistsRowTest.kt, page.test.ts. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-13 20:41:08 -04:00
bvandeusenandClaude Fable 5	9e02878b61	feat(playlists): For You composition v2 — multi-seed blend + weighted fresh tail ... Two approved composition changes (#1269), mechanism only — the taste/fresh share stays data-decided (#1252) and pick_kind attribution is unchanged. Multi-seed blending: each day's build now seeds from up to 3 of the user's top-5 tracks (pickDailySeeds, the generalized daily shuffle) instead of one rotating anchor, so the mix spans neighborhoods within a day and stops feeling bipolar as the rotation swings between dissimilar seeds. Per-seed pools merge first-seen-deduped; the head is filled best-first under 50/30/20 per-seed quotas (60/40 for two seeds) so one neighborhood can't monopolize it, with thin-seed quota spilling best-first. Score-weighted fresh tail: the tail sample (rank 2*headN onward) was uniform — the 380th-best candidate as likely as the 101st. It now uses deterministic Efraimidis-Spirakis keys with weight halving every 50 ranks, so freshness keeps its "you'll probably enjoy this" half while still rotating daily. The retired single-seed picker's one other caller, You-might-like, moves to pickDailySeeds(n=1) — a single neighborhood per day is right for a short shelf, and the behavior note is inline. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TsF3cNoKrqCYsU78cXC8U6	2026-07-03 09:02:35 -04:00
bvandeusenandClaude Fable 5	a670840114	fix(playlists): Songs-like mixes no longer vanish after a quiet week ... PickSeedArtists had a hard 7-day window with no fallback: a week without listening emptied the seed pool, produceSeedMixes returned zero playlists, and the daily atomic-replace build deleted every existing "Songs like X" mix until the user played something again (#1255). The query now falls back through widening engagement windows — 7d → 30d → all-time → liked artists — the same tiered shape that fixed the identical vanish for For You's seeds (PickTopPlayedTracksForUser). Like-boost scoring is preserved in every tier. All returned rows share the winning tier, and produceSeedMixes maps it onto the rule-#131 pick-kind ladder (7d = tier1 exact, 30d = tier2, all-time/liked = tier3) and stamps the built tracks — the #1270 provenance pipeline then attributes plays and skips to seed freshness, so the metrics card can say whether stale-seeded mixes actually perform worse. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TsF3cNoKrqCYsU78cXC8U6	2026-07-03 08:38:54 -04:00
bvandeusenandClaude Opus 4.7	5cd342d521	feat(playlists): daily seed rotation + jitter + 12+13 split for system playlists ... Five diversity mechanics — applied to both For-You and Songs-Like-X. 1. For-You seed rotates daily across the user's top-5 most-played tracks. pickForYouSeedForDay uses userIDHash(user, day) mod len(seeds) so today's mix uses an entirely different similarity pool than tomorrow's. Within-day determinism preserved. 2. JitterMagnitude bumped 0.0 → 0.1. The scoring RNG is now seeded by userIDHash(user, day) rather than the no-op, so near-tied candidates shuffle daily without breaking within-day stability. 3. Head/tail split moves from 20+5 to 12+13. Roughly half the playlist comes from the tail now (daily-deterministic via tieBreakHash), giving the user substantially different content while a 12-track anchor of strong similarity matches keeps the mix recognizable. 4. Songs-Like-X seed artists shuffle daily across the user's top-5 played artists. pickSeedArtistsForDay applies a userIDHash-seeded Fisher-Yates and takes 3. 5. scoreAndSortCandidates / pickTopN / pickHeadAndTail gain a userID parameter so the RNG can be seeded per-user; existing call sites updated; noopRNG removed. Test fixtures widened similarity gaps (e.g. float64(50-i) instead of (50-i)/50) so the new jitter (±0.1) doesn't perturb head ordering in assertions about the head/tail mechanism. New seed_selection_test coverage for userIDHash + pickForYouSeedForDay + pickSeedArtistsForDay spans deterministic-within-day, varies-across-days, and graceful degradation with small candidate pools. PickTopPlayedTrackForUser replaced by PickTopPlayedTracksForUser :many in the prior commit (b4801c2). The For-You seed lookup now goes through pickForYouSeedForDay over the returned slice. PickSeedArtists's LIMIT widened to 5 in the same prior commit. For #392 Half A — system playlist content diversity. Half B (per-user timezone scheduling) is a separate spec. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>	2026-05-13 10:19:49 -04:00
bvandeusen	ef478778ef	feat(server/m7-352): system mix helpers (tieBreakHash, pickSeedArtists)	2026-05-04 08:24:39 -04:00