diff --git a/docs/decisions.md b/docs/decisions.md
index 50273b8..c829b2d 100644
--- a/docs/decisions.md
+++ b/docs/decisions.md
@@ -170,3 +170,20 @@ CI на каждый PR собирает все образы без push, что
 **Последствия.** Серверу нужен доступ к репозиторию и интернет на время сборки; первая сборка — 5–15 минут,
 нужно ~5–10 ГБ под кэш сборки. Откат — `update.sh` на предыдущий тег (пересборка из кэша). Отпадают секреты
 `REGISTRY_USER` / `REGISTRY_TOKEN`. Заменяет часть ADR-001 / ci-cd о публикации образов.
+
+---
+
+## ADR-014. Анализатор v1 — признаки на numpy, Essentia позже
+
+**Контекст.** Нейросетевые модели Essentia (Discogs-EffNet, жанры, настроения) требуют essentia-tensorflow:
+тяжёлый образ, ограниченный набор платформ и версий Python. Волне v1 нужны звучание и базовые признаки уже сейчас.
+
+**Решение.** Анализатор `basic-1` (`services/recommender/pipu_rec/analysis/features.py`) считает признаки сам,
+на numpy поверх декодирования ffmpeg: 3 фрагмента по 30 с; эмбеддинг 256 = форма спектра, разброс, динамика
+и ритмичность по 64 mel-полосам (рекомендатель стандартизирует его по библиотеке); темп по автокорреляции онсетов;
+тональность по хромаграмме; громкость, энергия, танцевальность, акустичность, длина вступления.
+Valence — грубая оценка (лад + яркость); `mood_*`, `arousal`, жанры анализа не заполняются.
+
+**Последствия.** Анализ работает на любом CPU без моделей. Контексты используют энергию, темп, танцевальность
+и valence; настроения «весёлое» / «грустное» пока приблизительны. Переход на Essentia — новая версия
+`analyzer_ver`: воркер сам ставит пересчёт всех треков.
diff --git a/services/api/migrations/00006_wave.sql b/services/api/migrations/00006_wave.sql
new file mode 100644
index 0000000..d717f5a
--- /dev/null
+++ b/services/api/migrations/00006_wave.sql
@@ -0,0 +1,106 @@
+-- +goose Up
+CREATE TABLE track_features (
+  track_id         uuid PRIMARY KEY REFERENCES tracks(id) ON DELETE CASCADE,
+  analyzer_ver     text NOT NULL,
+  bpm              real,
+  bpm_confidence   real,
+  key              text,
+  scale            text,
+  loudness_lufs    real,
+  energy           real,
+  danceability     real,
+  valence          real,
+  arousal          real,
+  acousticness     real,
+  instrumentalness real,
+  mood_happy       real,
+  mood_sad         real,
+  mood_relaxed     real,
+  mood_aggressive  real,
+  mood_party       real,
+  intro_ms         int,
+  analyzed_at      timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE track_embeddings (
+  track_id   uuid PRIMARY KEY REFERENCES tracks(id) ON DELETE CASCADE,
+  audio      vector(256),
+  cf         vector(64),
+  updated_at timestamptz NOT NULL DEFAULT now()
+);
+CREATE INDEX track_embeddings_audio_idx ON track_embeddings USING hnsw (audio vector_cosine_ops);
+
+CREATE TABLE analysis_jobs (
+  track_id   uuid PRIMARY KEY REFERENCES tracks(id) ON DELETE CASCADE,
+  status     text NOT NULL DEFAULT 'queued',
+  attempts   int NOT NULL DEFAULT 0,
+  error      text,
+  updated_at timestamptz NOT NULL DEFAULT now()
+);
+CREATE INDEX analysis_jobs_queued_idx ON analysis_jobs (updated_at) WHERE status = 'queued';
+
+-- Каждый новый трек сразу встаёт в очередь анализа; существующие — тоже.
+-- +goose StatementBegin
+CREATE FUNCTION enqueue_analysis() RETURNS trigger LANGUAGE plpgsql AS $$
+BEGIN
+  INSERT INTO analysis_jobs (track_id) VALUES (NEW.id) ON CONFLICT DO NOTHING;
+  RETURN NEW;
+END $$;
+-- +goose StatementEnd
+CREATE TRIGGER tracks_enqueue_analysis AFTER INSERT ON tracks FOR EACH ROW EXECUTE FUNCTION enqueue_analysis();
+INSERT INTO analysis_jobs (track_id) SELECT id FROM tracks ON CONFLICT DO NOTHING;
+
+CREATE TABLE wave_sessions (
+  id            uuid PRIMARY KEY,
+  user_id       uuid NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  activity      text,
+  mood          text,
+  seed_type     text,
+  seed_id       uuid,
+  started_at    timestamptz NOT NULL DEFAULT now(),
+  ended_at      timestamptz,
+  tracks_served int NOT NULL DEFAULT 0
+);
+CREATE INDEX wave_sessions_user_idx ON wave_sessions (user_id, started_at DESC);
+
+CREATE TABLE wave_impressions (
+  wave_session_id  uuid REFERENCES wave_sessions(id) ON DELETE CASCADE,
+  position         int NOT NULL,
+  track_id         uuid NOT NULL,
+  candidate_source text NOT NULL,
+  score            real,
+  model_ver        text,
+  served_at        timestamptz NOT NULL DEFAULT now(),
+  outcome          text,
+  PRIMARY KEY (wave_session_id, position)
+);
+CREATE INDEX wave_impressions_track_idx ON wave_impressions (wave_session_id, track_id);
+
+CREATE TABLE user_profiles_rec (
+  user_id     uuid PRIMARY KEY REFERENCES users(id) ON DELETE CASCADE,
+  taste_audio vector(256),
+  taste_cf    vector(64),
+  genre_prefs jsonb NOT NULL DEFAULT '{}',
+  bandit      jsonb NOT NULL DEFAULT '{}',
+  exploration real NOT NULL DEFAULT 0.15,
+  updated_at  timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE model_versions (
+  id         text PRIMARY KEY,
+  kind       text NOT NULL,
+  metrics    jsonb,
+  is_active  boolean NOT NULL DEFAULT false,
+  created_at timestamptz NOT NULL DEFAULT now()
+);
+
+-- +goose Down
+DROP TABLE model_versions;
+DROP TABLE user_profiles_rec;
+DROP TABLE wave_impressions;
+DROP TABLE wave_sessions;
+DROP TRIGGER tracks_enqueue_analysis ON tracks;
+DROP FUNCTION enqueue_analysis();
+DROP TABLE analysis_jobs;
+DROP TABLE track_embeddings;
+DROP TABLE track_features;
diff --git a/services/recommender/Dockerfile b/services/recommender/Dockerfile
index 3748d07..b57dbb7 100644
--- a/services/recommender/Dockerfile
+++ b/services/recommender/Dockerfile
@@ -15,7 +15,8 @@ COPY services/recommender/ ./
 RUN --mount=type=cache,target=/root/.cache/uv uv sync --frozen --no-dev
 
 FROM python:3.12-slim
-RUN useradd --system --uid 10001 pipu
+# ffmpeg декодирует аудио для анализатора.
+RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg && rm -rf /var/lib/apt/lists/*     && useradd --system --uid 10001 pipu
 COPY --from=build /app /app
 ARG VERSION=0.0.0-dev
 ENV PATH=/app/.venv/bin:$PATH PIPU_VERSION=${VERSION} PYTHONUNBUFFERED=1
diff --git a/services/recommender/pipu_rec/analysis/__init__.py b/services/recommender/pipu_rec/analysis/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/services/recommender/pipu_rec/analysis/features.py b/services/recommender/pipu_rec/analysis/features.py
new file mode 100644
index 0000000..c06d9f2
--- /dev/null
+++ b/services/recommender/pipu_rec/analysis/features.py
@@ -0,0 +1,206 @@
+"""Аудиопризнаки трека на numpy: тембр (эмбеддинг), темп, громкость, энергия, тональность.
+
+Версия `basic-1` — без нейросетевых моделей (ADR-014): работает на любом CPU без TensorFlow.
+Нейросетевые признаки Essentia (жанры, настроения, valence/arousal) — следующая версия анализатора;
+смена `ANALYZER_VER` ставит пересчёт.
+"""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+import numpy as np
+from numpy.typing import NDArray
+
+ANALYZER_VER = "basic-1"
+SAMPLE_RATE = 22050
+N_FFT = 2048
+HOP = 512
+N_MELS = 64
+EMBEDDING_DIM = 256
+SEGMENT_S = 30.0
+
+Float = NDArray[np.float32]
+
+
+@dataclass(frozen=True)
+class Features:
+    bpm: float | None
+    bpm_confidence: float
+    key: str | None
+    scale: str | None
+    loudness_lufs: float
+    energy: float
+    danceability: float
+    valence: float
+    acousticness: float
+    intro_ms: int
+    embedding: Float  # (256,), L2-нормирован
+
+
+def segments(samples: Float, sr: int = SAMPLE_RATE, seconds: float = SEGMENT_S) -> list[Float]:
+    """Три фрагмента по 30 с — начало (после первых 10%), середина, конец; короткий трек — целиком."""
+    n = int(seconds * sr)
+    if len(samples) <= 3 * n:
+        return [samples]
+    total = len(samples)
+    starts = [int(total * 0.1), total // 2 - n // 2, total - n - int(total * 0.05)]
+    return [samples[s : s + n] for s in starts]
+
+
+def _stft_mag(x: Float) -> Float:
+    if len(x) < N_FFT:
+        x = np.pad(x, (0, N_FFT - len(x)))
+    frames = 1 + (len(x) - N_FFT) // HOP
+    idx = np.arange(N_FFT)[None, :] + HOP * np.arange(frames)[:, None]
+    window = np.hanning(N_FFT).astype(np.float32)
+    return np.abs(np.fft.rfft(x[idx] * window, axis=1)).astype(np.float32)  # (frames, bins)
+
+
+def _mel_filterbank(sr: int = SAMPLE_RATE) -> Float:
+    def hz_to_mel(f: NDArray[np.float64]) -> NDArray[np.float64]:
+        return 2595.0 * np.log10(1.0 + f / 700.0)
+
+    def mel_to_hz(m: NDArray[np.float64]) -> NDArray[np.float64]:
+        return 700.0 * (10 ** (m / 2595.0) - 1.0)
+
+    bins = N_FFT // 2 + 1
+    freqs = np.linspace(0, sr / 2, bins)
+    mel_points = mel_to_hz(np.linspace(hz_to_mel(np.array(30.0)), hz_to_mel(np.array(sr / 2)), N_MELS + 2))
+    fb = np.zeros((N_MELS, bins), dtype=np.float32)
+    for m in range(N_MELS):
+        lo, mid, hi = mel_points[m], mel_points[m + 1], mel_points[m + 2]
+        up = (freqs - lo) / (mid - lo)
+        down = (hi - freqs) / (hi - mid)
+        fb[m] = np.maximum(0, np.minimum(up, down))
+    return fb
+
+
+_MEL = _mel_filterbank()
+
+# Профили тональностей Крумханзла.
+_MAJOR = np.array([6.35, 2.23, 3.48, 2.33, 4.38, 4.09, 2.52, 5.19, 2.39, 3.66, 2.29, 2.88])
+_MINOR = np.array([6.33, 2.68, 3.52, 5.38, 2.60, 3.53, 2.54, 4.75, 3.98, 2.69, 3.34, 3.17])
+_NOTES = ["C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"]
+
+
+def _log_mel(mag: Float) -> Float:
+    """log-mel в дБ с полом на −60 дБ от максимума: шум в пустых полосах не превращается в «атаки»."""
+    mel = mag**2 @ _MEL.T
+    return (10 * np.log10(mel + 1e-6 * float(mel.max()) + 1e-12)).astype(np.float32)
+
+
+def estimate_tempo(onset: Float, sr: int = SAMPLE_RATE) -> tuple[float | None, float]:
+    """Темп по автокорреляции огибающей онсетов, 60–200 BPM с мягким приором к 120.
+    Возвращает (bpm, уверенность 0..1); без выраженного ритма — (None, 0)."""
+    fps = sr / HOP
+    env = onset - onset.mean()
+    # Ровный звук без атак: огибающая — численный шум, «ритма» в нём нет.
+    if len(env) < int(fps * 4) or float(onset.std()) < 0.5:
+        return None, 0.0
+    ac = np.correlate(env, env, mode="full")[len(env) - 1 :]
+    ac /= ac[0] + 1e-9
+    lags = np.arange(len(ac))
+    bpm_of = 60.0 * fps / np.maximum(lags, 1)
+    ok = (bpm_of >= 60) & (bpm_of <= 200)
+    if not np.any(ok):
+        return None, 0.0
+    prior = np.exp(-0.5 * (np.log2(bpm_of / 120.0) / 0.9) ** 2)
+    weighted = np.where(ok, ac * prior, -np.inf)
+    lag = int(np.argmax(weighted))
+    # Уточнение по параболе вокруг пика.
+    if 1 <= lag < len(ac) - 1:
+        a, b, c = ac[lag - 1], ac[lag], ac[lag + 1]
+        denom = a - 2 * b + c
+        shift = 0.5 * (a - c) / denom if denom != 0 else 0.0
+    else:
+        shift = 0.0
+    bpm = 60.0 * fps / (lag + shift)
+    # Ясность пульса: насколько пик выше типичного уровня автокорреляции в диапазоне темпов.
+    base = float(np.median(ac[ok]))
+    confidence = float(np.clip((ac[lag] - base) / (1 - base + 1e-9), 0, 1))
+    if confidence < 0.1:
+        return None, confidence
+    return round(float(bpm), 1), confidence
+
+
+def _key(mag: Float, sr: int = SAMPLE_RATE) -> tuple[str | None, str | None, float]:
+    """Тональность по хромаграмме; возвращает (нота, mode, уверенность)."""
+    freqs = np.linspace(0, sr / 2, mag.shape[1])
+    valid = (freqs > 60) & (freqs < 5000)
+    pitch = np.round(12 * np.log2(freqs[valid] / 440.0) + 69).astype(int) % 12
+    energy = mag[:, valid].sum(axis=0)
+    chroma = np.bincount(pitch, weights=energy, minlength=12)
+    if chroma.sum() <= 0:
+        return None, None, 0.0
+    chroma = chroma / chroma.sum()
+    best = (-2.0, 0, "major")
+    for shift in range(12):
+        for name, prof in (("major", _MAJOR), ("minor", _MINOR)):
+            r = float(np.corrcoef(chroma, np.roll(prof, shift))[0, 1])
+            if r > best[0]:
+                best = (r, shift, name)
+    r, shift, scale = best
+    return _NOTES[shift], scale, max(r, 0.0)
+
+
+def analyze(samples: Float, sr: int = SAMPLE_RATE) -> Features:
+    """Признаки трека по моно-сигналу sr Гц (float32, −1..1)."""
+    if sr != SAMPLE_RATE:
+        raise ValueError(f"expected {SAMPLE_RATE} Hz")
+    parts = segments(samples, sr)
+    mags = [_stft_mag(p) for p in parts]
+    mag = np.concatenate(mags, axis=0)
+    logmel = _log_mel(mag)  # (frames, mels)
+
+    # Огибающая онсетов — положительный прирост log-mel; темп по каждому фрагменту, берём самый уверенный.
+    tempos = []
+    for m in mags:
+        lm = _log_mel(m)
+        onset = np.maximum(np.diff(lm, axis=0), 0).sum(axis=1).astype(np.float32)
+        tempos.append(estimate_tempo(onset, sr))
+    bpm, bpm_conf = max(tempos, key=lambda t: t[1])
+    flux = np.maximum(np.diff(logmel, axis=0), 0).mean() if len(logmel) > 1 else 0.0
+
+    rms = np.sqrt(np.mean(samples.astype(np.float64) ** 2) + 1e-12)
+    loudness = float(-0.691 + 20 * np.log10(rms))  # без K-фильтра: близко к LUFS для музыки
+
+    centroid = float((mag * np.arange(mag.shape[1])).sum() / (mag.sum() + 1e-9) / mag.shape[1])
+    brightness = float(np.clip(centroid * 4, 0, 1))
+    loud_part = np.clip((loudness + 30) / 22, 0, 1)
+    energy = float(np.clip(0.5 * loud_part + 0.3 * np.clip(flux / 3, 0, 1) + 0.2 * brightness, 0, 1))
+    danceability = float(np.clip(bpm_conf * 1.6, 0, 1)) if bpm else 0.0
+    key, scale, key_conf = _key(mag, sr)
+    mode = 1.0 if scale == "major" else -1.0 if scale == "minor" else 0.0
+    valence = float(np.clip(0.45 + 0.2 * mode * key_conf + 0.35 * (brightness - 0.4), 0, 1))
+    # Акустичность: мало высоких частот и плавная динамика.
+    acousticness = float(np.clip(1 - brightness * 1.4 - flux / 6, 0, 1))
+
+    # Вступление: время, пока громкость первого фрагмента не дойдёт до половины медианной.
+    first = np.sqrt((mags[0] ** 2).mean(axis=1))
+    above = np.nonzero(first >= 0.5 * np.median(first))[0]
+    intro_ms = int(above[0] * HOP / sr * 1000) if len(above) else 0
+
+    # Эмбеддинг: форма спектра (среднее без общей громкости), разброс, динамика по полосам, ритмичность.
+    mean = logmel.mean(axis=0)
+    shape = mean - mean.mean()
+    std = logmel.std(axis=0)
+    diff = np.diff(logmel, axis=0) if len(logmel) > 1 else np.zeros((1, N_MELS), np.float32)
+    delta = np.abs(diff).mean(axis=0)
+    band_flux = np.maximum(diff, 0).std(axis=0)
+    emb = np.concatenate([shape / 10, std / 10, delta / 3, band_flux / 3]).astype(np.float32)
+    emb = emb / (np.linalg.norm(emb) + 1e-9)
+
+    return Features(
+        bpm=bpm,
+        bpm_confidence=round(bpm_conf, 3),
+        key=key,
+        scale=scale,
+        loudness_lufs=round(loudness, 2),
+        energy=round(energy, 3),
+        danceability=round(danceability, 3),
+        valence=round(valence, 3),
+        acousticness=round(acousticness, 3),
+        intro_ms=intro_ms,
+        embedding=emb,
+    )
diff --git a/services/recommender/pipu_rec/analysis/worker.py b/services/recommender/pipu_rec/analysis/worker.py
new file mode 100644
index 0000000..1f41a56
--- /dev/null
+++ b/services/recommender/pipu_rec/analysis/worker.py
@@ -0,0 +1,204 @@
+"""Воркер аудиоанализа: берёт задачи из analysis_jobs, считает признаки и пишет их в БД."""
+
+from __future__ import annotations
+
+import logging
+import subprocess
+import time
+from concurrent.futures import Future, ProcessPoolExecutor
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Any
+
+import numpy as np
+import psycopg
+
+from pipu_rec.analysis.features import ANALYZER_VER, SAMPLE_RATE, Features, analyze
+
+log = logging.getLogger(__name__)
+
+MAX_ATTEMPTS = 3
+MAX_DURATION_S = 15 * 60
+IDLE_SLEEP_S = 10.0
+
+
+@dataclass(frozen=True)
+class Job:
+    track_id: str
+    path: str
+
+
+def decode(path: str, ffmpeg: str = "ffmpeg") -> np.ndarray:
+    """Моно float32 22 050 Гц; путь — отдельный аргумент, без shell."""
+    out = subprocess.run(
+        [
+            ffmpeg,
+            "-v",
+            "error",
+            "-t",
+            str(MAX_DURATION_S),
+            "-i",
+            path,
+            "-ac",
+            "1",
+            "-ar",
+            str(SAMPLE_RATE),
+            "-f",
+            "f32le",
+            "-",
+        ],
+        capture_output=True,
+        check=False,
+        timeout=300,
+    )
+    if out.returncode != 0:
+        raise RuntimeError(out.stderr.decode(errors="replace").strip()[:500] or "ffmpeg failed")
+    samples = np.frombuffer(out.stdout, dtype=np.float32)
+    if samples.size < SAMPLE_RATE:
+        raise RuntimeError("audio is shorter than 1 s")
+    return samples
+
+
+def analyze_file(path: str, ffmpeg: str) -> Features:
+    """Выполняется в процессе пула."""
+    return analyze(decode(path, ffmpeg))
+
+
+def vector_literal(v: np.ndarray) -> str:
+    return "[" + ",".join(f"{x:.6f}" for x in v.tolist()) + "]"
+
+
+class Worker:
+    def __init__(
+        self, dsn: str, library_root: str, host_root: str, workers: int, ffmpeg: str = "ffmpeg"
+    ) -> None:
+        self.dsn = dsn
+        self.library_root = Path(library_root)
+        self.host_root = Path(host_root)
+        self.workers = max(1, workers)
+        self.ffmpeg = ffmpeg
+
+    def resolve(self, source_id: str, source_type: str, local_path: str | None, rel_path: str) -> str:
+        """Путь к файлу внутри контейнера анализатора — те же точки монтирования, что у api."""
+        if source_type == "local":
+            return str(self.host_root.joinpath(local_path or "", rel_path))
+        return str(self.library_root.joinpath(source_id, rel_path))
+
+    def claim(self, conn: psycopg.Connection[Any], limit: int) -> list[Job]:
+        """Забирает задачи; SKIP LOCKED — несколько анализаторов не возьмут одну и ту же."""
+        rows = conn.execute(
+            """
+            UPDATE analysis_jobs j SET status = 'running', attempts = attempts + 1, updated_at = now()
+            WHERE j.track_id IN (
+                SELECT a.track_id FROM analysis_jobs a
+                JOIN tracks t ON t.id = a.track_id
+                JOIN media_files f ON f.id = t.primary_file_id
+                JOIN library_sources s ON s.id = f.source_id AND s.status = 'mounted'
+                WHERE a.status = 'queued'
+                ORDER BY a.updated_at
+                LIMIT %s
+                FOR UPDATE OF a SKIP LOCKED)
+            RETURNING j.track_id::text
+            """,
+            (limit,),
+        ).fetchall()
+        conn.commit()
+        if not rows:
+            return []
+        files = conn.execute(
+            """
+            SELECT t.id::text, s.id::text, s.type::text, s.local_path, f.rel_path
+            FROM tracks t
+            JOIN media_files f ON f.id = t.primary_file_id
+            JOIN library_sources s ON s.id = f.source_id
+            WHERE t.id = ANY(%s::uuid[])
+            """,
+            ([r[0] for r in rows],),
+        ).fetchall()
+        return [Job(track_id=r[0], path=self.resolve(r[1], r[2], r[3], r[4])) for r in files]
+
+    def save(self, conn: psycopg.Connection[Any], track_id: str, f: Features) -> None:
+        conn.execute(
+            """
+            INSERT INTO track_features (track_id, analyzer_ver, bpm, bpm_confidence, key, scale,
+                loudness_lufs, energy, danceability, valence, acousticness, intro_ms, analyzed_at)
+            VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s, now())
+            ON CONFLICT (track_id) DO UPDATE SET analyzer_ver = EXCLUDED.analyzer_ver, bpm = EXCLUDED.bpm,
+                bpm_confidence = EXCLUDED.bpm_confidence, key = EXCLUDED.key, scale = EXCLUDED.scale,
+                loudness_lufs = EXCLUDED.loudness_lufs, energy = EXCLUDED.energy,
+                danceability = EXCLUDED.danceability, valence = EXCLUDED.valence,
+                acousticness = EXCLUDED.acousticness, intro_ms = EXCLUDED.intro_ms, analyzed_at = now()
+            """,
+            (
+                track_id,
+                ANALYZER_VER,
+                f.bpm,
+                f.bpm_confidence,
+                f.key,
+                f.scale,
+                f.loudness_lufs,
+                f.energy,
+                f.danceability,
+                f.valence,
+                f.acousticness,
+                f.intro_ms,
+            ),
+        )
+        conn.execute(
+            """
+            INSERT INTO track_embeddings (track_id, audio, updated_at) VALUES (%s, %s::vector, now())
+            ON CONFLICT (track_id) DO UPDATE SET audio = EXCLUDED.audio, updated_at = now()
+            """,
+            (track_id, vector_literal(f.embedding)),
+        )
+        conn.execute(
+            "UPDATE analysis_jobs SET status = 'done', error = NULL, updated_at = now() WHERE track_id = %s",
+            (track_id,),
+        )
+        conn.commit()
+
+    def fail(self, conn: psycopg.Connection[Any], track_id: str, err: str) -> None:
+        conn.execute(
+            """
+            UPDATE analysis_jobs SET status = CASE WHEN attempts >= %s THEN 'failed' ELSE 'queued' END,
+                error = %s, updated_at = now()
+            WHERE track_id = %s
+            """,
+            (MAX_ATTEMPTS, err[:500], track_id),
+        )
+        conn.commit()
+
+    def requeue_stale(self, conn: psycopg.Connection[Any]) -> None:
+        """Задачи, брошенные упавшим воркером, и признаки старой версии анализатора — снова в очередь."""
+        conn.execute(
+            "UPDATE analysis_jobs SET status = 'queued' "
+            "WHERE status = 'running' AND updated_at < now() - interval '30 minutes'"
+        )
+        conn.execute(
+            """
+            UPDATE analysis_jobs a SET status = 'queued', attempts = 0, updated_at = now()
+            FROM track_features f WHERE f.track_id = a.track_id AND f.analyzer_ver <> %s AND a.status = 'done'
+            """,
+            (ANALYZER_VER,),
+        )
+        conn.commit()
+
+    def run_forever(self) -> None:
+        log.info("analyzer started: workers=%d version=%s", self.workers, ANALYZER_VER)
+        with psycopg.connect(self.dsn) as conn, ProcessPoolExecutor(self.workers) as pool:
+            self.requeue_stale(conn)
+            while True:
+                jobs = self.claim(conn, self.workers * 2)
+                if not jobs:
+                    time.sleep(IDLE_SLEEP_S)
+                    continue
+                futures: list[tuple[Job, Future[Features]]] = [
+                    (j, pool.submit(analyze_file, j.path, self.ffmpeg)) for j in jobs
+                ]
+                for job, fut in futures:
+                    try:
+                        self.save(conn, job.track_id, fut.result(timeout=600))
+                    except Exception as exc:
+                        log.warning("analysis failed: track=%s err=%s", job.track_id, exc)
+                        conn.rollback()
+                        self.fail(conn, job.track_id, str(exc))
diff --git a/services/recommender/pipu_rec/api/app.py b/services/recommender/pipu_rec/api/app.py
index a6eb689..5d89bab 100644
--- a/services/recommender/pipu_rec/api/app.py
+++ b/services/recommender/pipu_rec/api/app.py
@@ -10,6 +10,8 @@ from fastapi import Depends, FastAPI, Header, HTTPException, status
 from fastapi.responses import JSONResponse
 
 from pipu_rec.settings import Settings
+from pipu_rec.wave.engine import MODEL_VER
+from pipu_rec.wave.service import BatchRequest, BatchResponse, WaveService
 
 Check = Callable[[], Awaitable[None]]
 
@@ -18,7 +20,9 @@ log = logging.getLogger(__name__)
 CHECK_TIMEOUT_S = 2.0
 
 
-def create_app(settings: Settings, checks: dict[str, Check] | None = None) -> FastAPI:
+def create_app(
+    settings: Settings, checks: dict[str, Check] | None = None, wave: WaveService | None = None
+) -> FastAPI:
     app = FastAPI(title="pipu-recommender", version=settings.version, docs_url=None, redoc_url=None)
     checks = checks or {}
 
@@ -54,6 +58,13 @@ def create_app(settings: Settings, checks: dict[str, Check] | None = None) -> Fa
 
     @app.get("/internal/status", dependencies=[Depends(require_token)])
     async def internal_status() -> dict[str, object]:
-        return {"version": settings.version, "models": [], "ranker": "heuristic-v1"}
+        return {"version": settings.version, "models": [], "ranker": MODEL_VER}
+
+    @app.post("/internal/wave/batch", dependencies=[Depends(require_token)])
+    async def wave_batch(req: BatchRequest) -> BatchResponse:
+        if wave is None:
+            raise HTTPException(status.HTTP_503_SERVICE_UNAVAILABLE, detail="wave.unavailable")
+        # Сборка — numpy и синхронные запросы к БД: в пуле потоков, чтобы не блокировать цикл событий.
+        return await asyncio.to_thread(wave.batch, req)
 
     return app
diff --git a/services/recommender/pipu_rec/cli.py b/services/recommender/pipu_rec/cli.py
index 9e78dc8..9e5a2b6 100644
--- a/services/recommender/pipu_rec/cli.py
+++ b/services/recommender/pipu_rec/cli.py
@@ -1,15 +1,17 @@
 """Точка входа: `pipu-rec serve` (онлайн-API) или `pipu-rec analyze` (воркер аудиоанализа)."""
 
 import argparse
-import asyncio
 import logging
 
 import psycopg
 import redis.asyncio as aioredis
 import uvicorn
 
+from pipu_rec.analysis.worker import Worker
 from pipu_rec.api.app import create_app
 from pipu_rec.settings import Settings
+from pipu_rec.wave.contexts import load_contexts
+from pipu_rec.wave.service import WaveService
 
 log = logging.getLogger("pipu_rec")
 
@@ -24,19 +26,19 @@ def _serve(settings: Settings) -> None:
     async def check_redis() -> None:
         await rdb.ping()
 
-    app = create_app(settings, {"postgres": check_postgres, "redis": check_redis})
+    wave = WaveService(settings.database_url, settings.redis_url, load_contexts(settings.contexts_path))
+    app = create_app(settings, {"postgres": check_postgres, "redis": check_redis}, wave)
     uvicorn.run(app, host=settings.http_host, port=settings.http_port, log_level=settings.log_level)
 
 
 def _analyze(settings: Settings, workers: int) -> None:
-    # Аудиоанализ (Essentia) появится в M4; сейчас воркер только держит процесс живым.
-    log.info("analyzer started: workers=%d version=%s (no-op until M4)", workers, settings.version)
-
-    async def idle() -> None:
-        while True:
-            await asyncio.sleep(3600)
-
-    asyncio.run(idle())
+    Worker(
+        settings.database_url,
+        settings.library_root,
+        settings.library_host_root,
+        workers,
+        settings.ffmpeg_path,
+    ).run_forever()
 
 
 def main() -> None:
diff --git a/services/recommender/pipu_rec/settings.py b/services/recommender/pipu_rec/settings.py
index 7514d7b..3139ffe 100644
--- a/services/recommender/pipu_rec/settings.py
+++ b/services/recommender/pipu_rec/settings.py
@@ -13,4 +13,8 @@ class Settings(BaseSettings):
     redis_url: str = Field(default="redis://redis:6379/0")
     internal_token: str = Field(default="", description="Общий секрет для вызовов из api")
     log_level: str = "info"
+    library_root: str = "/library"
+    library_host_root: str = "/library-host"
+    ffmpeg_path: str = "ffmpeg"
+    contexts_path: str = Field(default="", description="contexts.yaml; пусто — встроенный")
     version: str = Field(default="0.0.0-dev", alias="PIPU_VERSION")
diff --git a/services/recommender/pipu_rec/wave/__init__.py b/services/recommender/pipu_rec/wave/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/services/recommender/pipu_rec/wave/contexts.py b/services/recommender/pipu_rec/wave/contexts.py
new file mode 100644
index 0000000..04b0c71
--- /dev/null
+++ b/services/recommender/pipu_rec/wave/contexts.py
@@ -0,0 +1,73 @@
+"""Профили занятий и настроений: соответствие трека контексту (context_fit)."""
+
+from __future__ import annotations
+
+from importlib import resources
+from pathlib import Path
+
+import numpy as np
+import yaml
+from numpy.typing import NDArray
+from pydantic import BaseModel, model_validator
+
+FEATURES = ("bpm", "energy", "danceability", "valence", "acousticness")
+
+
+class Rule(BaseModel):
+    feature: str
+    min: float | None = None
+    max: float | None = None
+    sigma: float
+    half_time: bool = False
+
+    @model_validator(mode="after")
+    def check(self) -> Rule:
+        if self.feature not in FEATURES:
+            raise ValueError(f"unknown feature {self.feature!r}; known: {', '.join(FEATURES)}")
+        if self.min is None and self.max is None:
+            raise ValueError("rule needs min or max")
+        if self.sigma <= 0:
+            raise ValueError("sigma must be positive")
+        return self
+
+
+class Context(BaseModel):
+    icon: str
+    rules: list[Rule]
+
+
+class Contexts(BaseModel):
+    activities: dict[str, Context]
+    moods: dict[str, Context]
+
+
+def load_contexts(path: str = "") -> Contexts:
+    """contexts.yaml из пути или встроенный; ошибка в файле — ошибка запуска (Pydantic)."""
+    raw = (
+        Path(path).read_text("utf-8")
+        if path
+        else resources.files(__package__).joinpath("contexts.yaml").read_text("utf-8")
+    )
+    return Contexts.model_validate(yaml.safe_load(raw))
+
+
+def _bell(x: NDArray[np.float64], rule: Rule) -> NDArray[np.float64]:
+    lo = -np.inf if rule.min is None else rule.min
+    hi = np.inf if rule.max is None else rule.max
+    dist = np.where(x < lo, lo - x, np.where(x > hi, x - hi, 0.0))
+    return np.asarray(np.exp(-0.5 * (dist / rule.sigma) ** 2))
+
+
+def fit(features: dict[str, NDArray[np.float64]], rules: list[Rule]) -> NDArray[np.float64]:
+    """Произведение «колоколов» по правилам; NaN (признака нет) — нейтрально (1).
+    half_time: для темпа засчитывается и половинный (бег под 85 BPM — тот же шаг, что 170)."""
+    n = len(next(iter(features.values())))
+    out = np.ones(n)
+    for rule in rules:
+        x = features[rule.feature]
+        known = ~np.isnan(x)
+        b = _bell(np.nan_to_num(x), rule)
+        if rule.half_time:
+            b = np.maximum(b, _bell(np.nan_to_num(x) * 2, rule))
+        out *= np.where(known, b, 1.0)
+    return out
diff --git a/services/recommender/pipu_rec/wave/contexts.yaml b/services/recommender/pipu_rec/wave/contexts.yaml
new file mode 100644
index 0000000..f25f2db
--- /dev/null
+++ b/services/recommender/pipu_rec/wave/contexts.yaml
@@ -0,0 +1,56 @@
+# Занятия и настроения «Моей волны» (docs/recommendations.md#64-занятия-и-настроения).
+# Каждое правило — «колокол» по признаку трека: внутри [min, max] — 1, снаружи спадает по Гауссу с sigma.
+# Признак, которого у трека нет (ещё не проанализирован), не штрафует.
+# Изменения применяются после перезапуска recommender, пересборка образа не нужна (CONTEXTS_PATH).
+activities:
+  running:
+    icon: directions_run
+    rules:
+      - {feature: bpm, min: 150, max: 185, sigma: 12, half_time: true}
+      - {feature: energy, min: 0.7, sigma: 0.12}
+      - {feature: danceability, min: 0.5, sigma: 0.2}
+  workout:
+    icon: fitness_center
+    rules:
+      - {feature: energy, min: 0.75, sigma: 0.1}
+      - {feature: bpm, min: 110, max: 180, sigma: 20, half_time: true}
+  waking_up:
+    icon: wb_sunny
+    rules:
+      - {feature: energy, min: 0.3, max: 0.7, sigma: 0.12}
+      - {feature: valence, min: 0.5, sigma: 0.15}
+  focus:
+    icon: headphones
+    rules:
+      - {feature: energy, min: 0.3, max: 0.6, sigma: 0.12}
+      - {feature: acousticness, min: 0.3, sigma: 0.25}
+  commute:
+    icon: directions_car
+    rules:
+      - {feature: energy, min: 0.4, max: 0.8, sigma: 0.15}
+  chill:
+    icon: weekend
+    rules:
+      - {feature: energy, max: 0.5, sigma: 0.12}
+  sleep:
+    icon: bedtime
+    rules:
+      - {feature: energy, max: 0.35, sigma: 0.1}
+      - {feature: bpm, max: 95, sigma: 12}
+moods:
+  energetic:
+    icon: bolt
+    rules:
+      - {feature: energy, min: 0.7, sigma: 0.12}
+  happy:
+    icon: sentiment_satisfied
+    rules:
+      - {feature: valence, min: 0.6, sigma: 0.12}
+  calm:
+    icon: spa
+    rules:
+      - {feature: energy, max: 0.45, sigma: 0.12}
+  sad:
+    icon: rainy
+    rules:
+      - {feature: valence, max: 0.4, sigma: 0.12}
diff --git a/services/recommender/pipu_rec/wave/engine.py b/services/recommender/pipu_rec/wave/engine.py
new file mode 100644
index 0000000..56c325b
--- /dev/null
+++ b/services/recommender/pipu_rec/wave/engine.py
@@ -0,0 +1,306 @@
+"""Сборка пачки «Моей волны» (v1: эвристика). Чистые функции над массивами — без БД и сети."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+
+import numpy as np
+from numpy.typing import NDArray
+
+from pipu_rec.wave.contexts import FEATURES, Rule, fit
+
+MODEL_VER = "heuristic-v1"
+
+Vec = NDArray[np.float32]
+
+
+@dataclass
+class CatalogIndex:
+    """Каталог в памяти: строка i — трек ids[i]."""
+
+    ids: list[str]
+    artist: list[str]  # основной исполнитель
+    emb: Vec  # (n, d), стандартизирован и нормирован; нулевой — нет анализа
+    has_emb: NDArray[np.bool_]
+    features: dict[str, NDArray[np.float64]]  # NaN — нет признака
+    popularity: NDArray[np.float64]  # 0..1
+    pos: dict[str, int] = field(default_factory=dict)
+
+    def __post_init__(self) -> None:
+        self.pos = {t: i for i, t in enumerate(self.ids)}
+
+    def __len__(self) -> int:
+        return len(self.ids)
+
+    @staticmethod
+    def build(
+        ids: list[str],
+        artist: list[str],
+        raw_emb: list[Vec | None],
+        features: dict[str, list[float | None]],
+        plays: list[int],
+        dim: int = 256,
+    ) -> CatalogIndex:
+        n = len(ids)
+        emb = np.zeros((n, dim), dtype=np.float32)
+        has = np.zeros(n, dtype=bool)
+        for i, e in enumerate(raw_emb):
+            if e is not None:
+                emb[i], has[i] = e, True
+        if has.sum() >= 2:
+            # Стандартизация по библиотеке: косинус сравнивает отличия треков, а не общий «звук библиотеки».
+            mu = emb[has].mean(axis=0)
+            sd = emb[has].std(axis=0) + 1e-6
+            emb[has] = (emb[has] - mu) / sd
+            emb[has] /= np.linalg.norm(emb[has], axis=1, keepdims=True) + 1e-9
+        feats = {
+            k: np.array([np.nan if v is None else v for v in features.get(k, [None] * n)], dtype=np.float64)
+            for k in FEATURES
+        }
+        p = np.log1p(np.array(plays, dtype=np.float64))
+        pop = p / p.max() if n and p.max() > 0 else np.zeros(n)
+        return CatalogIndex(ids=ids, artist=artist, emb=emb, has_emb=has, features=feats, popularity=pop)
+
+
+@dataclass
+class Profile:
+    """Вкус пользователя: оценки треков и производные."""
+
+    scores: dict[str, float]  # implicit_score > 0 — нравится
+    disliked: set[str]
+    disliked_artists: set[str]
+    recent: set[str]  # сыграны за последние 3 часа
+    played: set[str]  # слышал когда-либо
+    liked_recent: set[str]  # лайкнутые, игравшие за 24 ч — штраф
+    rediscover: set[str]  # любимые, не игравшие > 60 дней
+    exploration: float = 0.15
+
+
+@dataclass
+class Session:
+    """Состояние сессии волны (Redis)."""
+
+    vec: list[float] | None = None
+    served: list[str] = field(default_factory=list)
+    recent_artists: list[str] = field(default_factory=list)
+    skips_in_row: int = 0
+
+
+@dataclass(frozen=True)
+class Pick:
+    id: str
+    source: str
+    score: float
+
+
+# Вклад реакции в сессионный вектор: s ← normalize(s + η·r·e).
+REACTION_WEIGHT = {"complete": 1.0, "like": 2.0, "skip_early": -1.0, "dislike": -2.0, "skip": -0.5}
+ETA = 0.3
+
+
+def taste_centroids(index: CatalogIndex, profile: Profile, max_k: int = 6, seed: int = 0) -> Vec:
+    """Центроиды вкуса: k-means по эмбеддингам треков с положительной оценкой (веса = оценка).
+    k растёт с историей: 1 центроид на ~8 любимых треков, не больше max_k."""
+    rows = [(index.pos[t], s) for t, s in profile.scores.items() if s > 0 and t in index.pos]
+    rows = [(i, s) for i, s in rows if index.has_emb[i]]
+    if not rows:
+        return np.zeros((0, index.emb.shape[1]), dtype=np.float32)
+    x = index.emb[[i for i, _ in rows]]
+    w = np.array([s for _, s in rows])
+    k = int(min(max_k, max(1, len(rows) // 8)))
+    rng = np.random.default_rng(seed)
+    centers = x[rng.choice(len(x), size=k, replace=False)]
+    for _ in range(10):
+        assign = np.argmax(x @ centers.T, axis=1)
+        for c in range(k):
+            m = assign == c
+            if m.any():
+                v = (x[m] * w[m, None]).sum(axis=0)
+                centers[c] = v / (np.linalg.norm(v) + 1e-9)
+    return centers.astype(np.float32)
+
+
+def update_session(
+    index: CatalogIndex, session: Session, feedback: list[tuple[str, str]], centroids: Vec
+) -> None:
+    """Обновляет сессионный вектор и счётчик скипов по реакциям на выданные треки.
+    Три скипа подряд — «смена курса»: вектор переводится к наименее похожему центроиду вкуса."""
+    d = index.emb.shape[1]
+    vec = np.array(session.vec, dtype=np.float32) if session.vec else np.zeros(d, dtype=np.float32)
+    for track_id, outcome in feedback:
+        i = index.pos.get(track_id)
+        r = REACTION_WEIGHT.get(outcome)
+        if r is None:
+            continue
+        session.skips_in_row = session.skips_in_row + 1 if outcome in ("skip", "skip_early", "dislike") else 0
+        if i is None or not index.has_emb[i]:
+            continue
+        vec = vec + ETA * r * index.emb[i]
+        norm = float(np.linalg.norm(vec))
+        vec = vec / norm if norm > 0 else vec
+    if session.skips_in_row >= 3 and len(centroids):
+        sims = centroids @ vec if np.any(vec) else np.zeros(len(centroids))
+        vec = centroids[int(np.argmin(sims))].copy()
+        session.skips_in_row = 0
+    session.vec = vec.tolist() if np.any(vec) else None
+
+
+def _top(scores: NDArray[np.float64], mask: NDArray[np.bool_], k: int) -> NDArray[np.intp]:
+    idx = np.nonzero(mask)[0]
+    if len(idx) <= k:
+        return idx
+    part = idx[np.argpartition(-scores[idx], k)[:k]]
+    return part
+
+
+def build_batch(
+    index: CatalogIndex,
+    profile: Profile,
+    session: Session,
+    rules: list[Rule],
+    n: int = 5,
+    exclude: set[str] | None = None,
+    seed_ids: list[str] | None = None,
+    rng: np.random.Generator | None = None,
+) -> list[Pick]:
+    """Кандидаты → фильтры → оценка → соответствие контексту → MMR с правилами разнообразия."""
+    rng = rng or np.random.default_rng()
+    size = len(index)
+    if size == 0:
+        return []
+    centroids = taste_centroids(index, profile)
+    svec = np.array(session.vec, dtype=np.float32) if session.vec else None
+
+    # 2. Фильтры.
+    excluded = profile.disliked | profile.recent | set(session.served) | (exclude or set())
+    allowed = np.array(
+        [
+            t not in excluded and a not in profile.disliked_artists
+            for t, a in zip(index.ids, index.artist, strict=True)
+        ]
+    )
+    if not allowed.any():
+        allowed = np.array([t not in profile.disliked for t in index.ids])
+    if not allowed.any():
+        return []
+
+    # Сходства со вкусом и сессией.
+    sim_taste = (index.emb @ centroids.T).max(axis=1) if len(centroids) else np.zeros(size)
+    sim_session = index.emb @ svec if svec is not None else np.zeros(size)
+    sim_taste = np.where(index.has_emb, sim_taste, 0.0)
+    sim_session = np.where(index.has_emb, sim_session, 0.0)
+
+    # Привязанность к исполнителю — сглаженное среднее оценок его треков.
+    totals: dict[str, list[float]] = {}
+    for t, s in profile.scores.items():
+        i = index.pos.get(t)
+        if i is not None:
+            totals.setdefault(index.artist[i], []).append(s)
+    affinity = {a: sum(v) / (len(v) + 2) for a, v in totals.items()}
+    artist_aff = np.array([np.tanh(affinity.get(a, 0.0) / 3) for a in index.artist])
+
+    # 1. Источники кандидатов.
+    sources: dict[int, str] = {}
+
+    def add(idxs: NDArray[np.intp] | list[int], source: str) -> None:
+        for i in idxs:
+            sources.setdefault(int(i), source)
+
+    if seed_ids:
+        seeds = [index.pos[s] for s in seed_ids if s in index.pos and index.has_emb[index.pos[s]]]
+        if seeds:
+            q = index.emb[seeds].mean(axis=0)
+            add(_top((index.emb @ q).astype(np.float64), allowed & index.has_emb, 100), "seed")
+    query = np.maximum(sim_session, sim_taste) if svec is not None or len(centroids) else None
+    if query is not None:
+        # «Новое» помечаем раньше audio_sim: неслышанный трек рядом со вкусом считается исследованием.
+        never = np.array([t not in profile.played for t in index.ids])
+        add(_top(sim_taste + 0.3 * sim_session, allowed & index.has_emb & never, 50), "fresh")
+        add(_top(query, allowed & index.has_emb, 150), "audio_sim")
+    liked_artists = {a for a, v in affinity.items() if v > 0.3}
+    if liked_artists:
+        by_artist = [int(i) for i in np.nonzero(allowed)[0] if index.artist[i] in liked_artists]
+        add(rng.permutation(by_artist)[:60].tolist() if by_artist else [], "artist")
+    redis_ = [index.pos[t] for t in profile.rediscover if t in index.pos and allowed[index.pos[t]]]
+    add(rng.permutation(redis_)[:30].tolist() if redis_ else [], "rediscover")
+    add(_top(index.popularity + rng.random(size) * 0.3, allowed, 30), "popular")
+    # Холодный старт и исследование: случайные треки из разных частей библиотеки.
+    add(rng.permutation(np.nonzero(allowed)[0])[:40].tolist(), "explore")
+
+    cand = np.array(sorted(sources))
+    # 3. Оценка v1.
+    score = (
+        0.35 * sim_session[cand]
+        + 0.25 * sim_taste[cand]
+        + 0.15 * artist_aff[cand]
+        + 0.05 * index.popularity[cand]
+        + 0.02 * rng.random(len(cand))  # разбивает ничьи, особенно при холодном старте
+    )
+    liked_recent = np.array([index.ids[i] in profile.liked_recent for i in cand])
+    score = score - 0.2 * liked_recent
+
+    # 4. Соответствие контексту; если отсеялось слишком много — порог ослабляется.
+    if rules:
+        f = fit({k: v[cand] for k, v in index.features.items()}, rules)
+        # Нужен запас для разнообразия, но не больше 50 и не больше четверти пула.
+        enough = min(50, max(3 * n, len(cand) // 4))
+        for threshold in (0.35, 0.15, 0.0):
+            keep = f >= threshold
+            if keep.sum() >= enough or threshold == 0.0:
+                break
+        cand, score, f = cand[keep], score[keep], f[keep]
+        score = score + 0.5 * f  # контекст важнее вкуса, когда выбран явно
+    if len(cand) == 0:
+        return []
+
+    # 5. MMR + правила: 1 трек исполнителя на пачку, не больше 2 на последние 10; доля «нового».
+    picks: list[Pick] = []
+    chosen: list[int] = []
+    recent_artists = session.recent_artists[-10:]
+    want_fresh = max(0, round(n * profile.exploration))
+    order = list(range(len(cand)))
+    lam = 0.75
+    while len(picks) < n and order:
+        best_j, best_v = -1, -np.inf
+        for j in order:
+            i = int(cand[j])
+            a = index.artist[i]
+            if any(index.artist[c] == a for c in chosen) or recent_artists.count(a) >= 2:
+                continue
+            redundancy = max((float(index.emb[i] @ index.emb[c]) for c in chosen), default=0.0)
+            v = lam * float(score[j]) - (1 - lam) * redundancy
+            if v > best_v:
+                best_j, best_v = j, v
+        if best_j < 0:
+            # Правила разнообразия не дают набрать пачку — ослабляем их, но не повторяем треки.
+            if recent_artists:
+                recent_artists = []
+                continue
+            if chosen:
+                chosen_artists = {index.artist[c] for c in chosen}
+                rest = [j for j in order if index.artist[int(cand[j])] in chosen_artists]
+                if not rest:
+                    break
+                best_j = max(rest, key=lambda j: score[j])
+            else:
+                break
+        i = int(cand[best_j])
+        chosen.append(i)
+        order.remove(best_j)
+        picks.append(Pick(id=index.ids[i], source=sources[i], score=round(float(score[best_j]), 4)))
+
+    # Исследование: «новых» (неслышанных) меньше доли exploration — заменяем ими слабейшие выборы.
+    fresh_left = sorted(
+        (j for j in order if sources[int(cand[j])] == "fresh"), key=lambda j: score[j], reverse=True
+    )
+    while sum(p.source == "fresh" for p in picks) < want_fresh and fresh_left:
+        j = fresh_left.pop(0)
+        i = int(cand[j])
+        others = [k for k, p in enumerate(picks) if p.source != "fresh"]
+        if not others:
+            break
+        weakest = min(others, key=lambda k: picks[k].score)
+        if any(index.artist[index.pos[p.id]] == index.artist[i] for k, p in enumerate(picks) if k != weakest):
+            continue
+        picks[weakest] = Pick(id=index.ids[i], source="fresh", score=round(float(score[j]), 4))
+    return picks
diff --git a/services/recommender/pipu_rec/wave/service.py b/services/recommender/pipu_rec/wave/service.py
new file mode 100644
index 0000000..5e353c7
--- /dev/null
+++ b/services/recommender/pipu_rec/wave/service.py
@@ -0,0 +1,93 @@
+"""Сервис «Моей волны»: собирает пачку из каталога, профиля, сессии и контекста."""
+
+from __future__ import annotations
+
+from typing import Literal
+
+import numpy as np
+import psycopg
+from pydantic import BaseModel, Field
+
+from pipu_rec.wave.contexts import Contexts, Rule
+from pipu_rec.wave.engine import MODEL_VER, Pick, build_batch, taste_centroids, update_session
+from pipu_rec.wave.store import IndexHolder, SessionStore, load_profile, seed_tracks
+
+MAX_SERVED_MEMORY = 300
+
+Outcome = Literal["complete", "skip", "skip_early", "like", "dislike"]
+
+
+class Feedback(BaseModel):
+    track_id: str
+    outcome: Outcome
+
+
+class Seed(BaseModel):
+    type: Literal["track", "album", "artist"]
+    id: str
+
+
+class BatchRequest(BaseModel):
+    user_id: str
+    session_id: str
+    activity: str | None = None
+    mood: str | None = None
+    seed: Seed | None = None
+    exclude_ids: list[str] = Field(default_factory=list, max_length=1000)
+    feedback: list[Feedback] = Field(default_factory=list, max_length=200)
+    n: int = Field(default=5, ge=1, le=20)
+
+
+class BatchTrack(BaseModel):
+    id: str
+    source: str
+    score: float
+
+
+class BatchResponse(BaseModel):
+    tracks: list[BatchTrack]
+    model_ver: str
+
+
+class WaveService:
+    def __init__(self, dsn: str, redis_url: str, contexts: Contexts) -> None:
+        self.dsn = dsn
+        self.index = IndexHolder(dsn)
+        self.sessions = SessionStore(redis_url)
+        self.contexts = contexts
+
+    def rules(self, activity: str | None, mood: str | None) -> list[Rule]:
+        """Занятие и настроение комбинируются — пересечение профилей; неизвестный ключ игнорируется."""
+        rules: list[Rule] = []
+        if activity and activity in self.contexts.activities:
+            rules += self.contexts.activities[activity].rules
+        if mood and mood in self.contexts.moods:
+            rules += self.contexts.moods[mood].rules
+        return rules
+
+    def batch(self, req: BatchRequest) -> BatchResponse:
+        index = self.index.get()
+        with psycopg.connect(self.dsn) as conn:
+            profile = load_profile(conn, req.user_id)
+            seeds = seed_tracks(conn, req.seed.type, req.seed.id) if req.seed else None
+        session = self.sessions.get(req.session_id)
+        update_session(
+            index, session, [(f.track_id, f.outcome) for f in req.feedback], taste_centroids(index, profile)
+        )
+        picks: list[Pick] = build_batch(
+            index,
+            profile,
+            session,
+            self.rules(req.activity, req.mood),
+            n=req.n,
+            exclude=set(req.exclude_ids),
+            seed_ids=seeds,
+            rng=np.random.default_rng(),
+        )
+        session.served = (session.served + [p.id for p in picks])[-MAX_SERVED_MEMORY:]
+        artists = [index.artist[index.pos[p.id]] for p in picks]
+        session.recent_artists = (session.recent_artists + artists)[-10:]
+        self.sessions.put(req.session_id, session)
+        return BatchResponse(
+            tracks=[BatchTrack(id=p.id, source=p.source, score=p.score) for p in picks], model_ver=MODEL_VER
+        )
diff --git a/services/recommender/pipu_rec/wave/store.py b/services/recommender/pipu_rec/wave/store.py
new file mode 100644
index 0000000..b180c5d
--- /dev/null
+++ b/services/recommender/pipu_rec/wave/store.py
@@ -0,0 +1,194 @@
+"""Загрузка каталога, профиля и сессии волны из PostgreSQL / Redis."""
+
+from __future__ import annotations
+
+import json
+import logging
+import math
+import threading
+import time
+from dataclasses import asdict
+from typing import Any, cast
+
+import numpy as np
+import psycopg
+import redis
+
+from pipu_rec.wave.engine import CatalogIndex, Profile, Session
+
+log = logging.getLogger(__name__)
+
+INDEX_TTL_S = 300
+SESSION_TTL_S = 12 * 3600
+HALF_LIFE_DAYS = 90.0
+
+
+def parse_vector(text: str | None) -> np.ndarray | None:
+    """pgvector в текстовом виде «[0.1,0.2,...]»."""
+    if not text:
+        return None
+    return np.array(text.strip("[]").split(","), dtype=np.float32)
+
+
+def load_index(conn: psycopg.Connection[Any]) -> CatalogIndex:
+    """Доступные треки: основной файл в подключённом хранилище и на месте."""
+    rows = conn.execute(
+        """
+        SELECT t.id::text,
+            COALESCE((SELECT ta.artist_id::text FROM track_artists ta
+                WHERE ta.track_id = t.id AND ta.role = 'main' ORDER BY ta.position LIMIT 1),
+                al.album_artist_id::text),
+            e.audio::text, f.bpm, f.energy, f.danceability, f.valence, f.acousticness,
+            COALESCE((SELECT sum(play_count) FROM user_track_stats s WHERE s.track_id = t.id), 0)
+        FROM tracks t
+        JOIN albums al ON al.id = t.album_id
+        JOIN media_files mf ON mf.id = t.primary_file_id AND mf.missing_since IS NULL
+        JOIN library_sources src ON src.id = mf.source_id AND src.status = 'mounted'
+        LEFT JOIN track_embeddings e ON e.track_id = t.id
+        LEFT JOIN track_features f ON f.track_id = t.id
+        """
+    ).fetchall()
+    feats: dict[str, list[float | None]] = {
+        k: [] for k in ("bpm", "energy", "danceability", "valence", "acousticness")
+    }
+    for r in rows:
+        for k, v in zip(feats, r[3:8], strict=True):
+            feats[k].append(None if v is None else float(v))
+    return CatalogIndex.build(
+        ids=[r[0] for r in rows],
+        artist=[r[1] for r in rows],
+        raw_emb=[parse_vector(r[2]) for r in rows],
+        features=feats,
+        plays=[int(r[8]) for r in rows],
+    )
+
+
+class IndexHolder:
+    """Каталог в памяти; перечитывается раз в INDEX_TTL_S в фоне, не блокируя чтение."""
+
+    def __init__(self, dsn: str) -> None:
+        self.dsn = dsn
+        self._index: CatalogIndex | None = None
+        self._loaded = 0.0
+        self._lock = threading.Lock()
+
+    def get(self) -> CatalogIndex:
+        if self._index is None:
+            self.refresh()
+        elif time.monotonic() - self._loaded > INDEX_TTL_S and self._lock.acquire(blocking=False):
+            threading.Thread(target=self._refresh_locked, daemon=True).start()
+        assert self._index is not None
+        return self._index
+
+    def refresh(self) -> None:
+        with self._lock:
+            self._load()
+
+    def _refresh_locked(self) -> None:
+        try:
+            self._load()
+        finally:
+            self._lock.release()
+
+    def _load(self) -> None:
+        started = time.monotonic()
+        with psycopg.connect(self.dsn) as conn:
+            self._index = load_index(conn)
+        self._loaded = time.monotonic()
+        log.info(
+            "catalog index loaded: tracks=%d analysed=%d in %.0f ms",
+            len(self._index),
+            int(self._index.has_emb.sum()),
+            (self._loaded - started) * 1000,
+        )
+
+
+def load_profile(conn: psycopg.Connection[Any], user_id: str) -> Profile:
+    """implicit_score из агрегатов с затуханием по давности; лайк +3, дизлайк — исключение."""
+    now = time.time()
+    scores: dict[str, float] = {}
+    played: set[str] = set()
+    last: dict[str, float] = {}
+    for tid, plays, complete, skips, early, last_at in conn.execute(
+        """
+        SELECT track_id::text, play_count, complete_count, skip_count, early_skip_count, last_played_at
+        FROM user_track_stats WHERE user_id = %s
+        """,
+        (user_id,),
+    ):
+        played.add(tid)
+        raw = complete * 1.0 + max(plays - complete, 0) * 0.7 - early * 1.0 - max(skips - early, 0) * 0.2
+        ts = last_at.timestamp() if last_at else now
+        last[tid] = ts
+        scores[tid] = raw * math.exp(-math.log(2) * (now - ts) / 86400 / HALF_LIFE_DAYS)
+    disliked: set[str] = set()
+    liked: set[str] = set()
+    for tid, reaction in conn.execute(
+        "SELECT track_id::text, reaction::text FROM track_reactions WHERE user_id = %s", (user_id,)
+    ):
+        if reaction == "like":
+            liked.add(tid)
+            scores[tid] = scores.get(tid, 0.0) + 3.0
+        else:
+            disliked.add(tid)
+            scores.pop(tid, None)
+    disliked_artists = {
+        r[0]
+        for r in conn.execute(
+            "SELECT artist_id::text FROM artist_reactions WHERE user_id = %s AND reaction = 'dislike'",
+            (user_id,),
+        )
+    }
+    recent = {
+        r[0]
+        for r in conn.execute(
+            """
+            SELECT DISTINCT track_id::text FROM play_events
+            WHERE user_id = %s AND type = 'play_start' AND occurred_at > now() - interval '3 hours'
+            """,
+            (user_id,),
+        )
+    }
+    row = conn.execute("SELECT exploration FROM user_profiles_rec WHERE user_id = %s", (user_id,)).fetchone()
+    exploration = float(row[0]) if row else 0.15
+    if len(played) < 30:
+        exploration = max(exploration, 0.4)  # холодный старт: больше исследования на первых треках
+    day = 86400
+    return Profile(
+        scores=scores,
+        disliked=disliked,
+        disliked_artists=disliked_artists,
+        recent=recent,
+        played=played,
+        liked_recent={t for t in liked if now - last.get(t, 0) < day},
+        rediscover={t for t, s in scores.items() if s > 1.5 and now - last.get(t, now) > 60 * day},
+        exploration=exploration,
+    )
+
+
+def seed_tracks(conn: psycopg.Connection[Any], seed_type: str, seed_id: str) -> list[str]:
+    """Треки, от которых запущена волна: трек, альбом или исполнитель."""
+    queries = {
+        "track": "SELECT %s::uuid::text",
+        "album": "SELECT id::text FROM tracks WHERE album_id = %s",
+        "artist": "SELECT track_id::text FROM track_artists WHERE artist_id = %s",
+    }
+    q = queries.get(seed_type)
+    if not q:
+        return []
+    return [r[0] for r in conn.execute(q, (seed_id,))]
+
+
+class SessionStore:
+    def __init__(self, url: str) -> None:
+        self.rdb = redis.Redis.from_url(url, socket_connect_timeout=2, socket_timeout=2)
+
+    def get(self, session_id: str) -> Session:
+        raw = cast(bytes | None, self.rdb.get(f"wave:session:{session_id}"))
+        if not raw:
+            return Session()
+        data = json.loads(raw)
+        return Session(**data)
+
+    def put(self, session_id: str, s: Session) -> None:
+        self.rdb.set(f"wave:session:{session_id}", json.dumps(asdict(s)), ex=SESSION_TTL_S)
diff --git a/services/recommender/pyproject.toml b/services/recommender/pyproject.toml
index db28d6c..7ce2bea 100644
--- a/services/recommender/pyproject.toml
+++ b/services/recommender/pyproject.toml
@@ -9,6 +9,8 @@ dependencies = [
     "pydantic-settings>=2.9,<3",
     "psycopg[binary]>=3.2,<4",
     "redis>=6.2,<7",
+    "numpy>=2.2,<3",
+    "pyyaml>=6.0,<7",
 ]
 
 [project.scripts]
@@ -20,6 +22,7 @@ dev = [
     "httpx>=0.28,<1",
     "ruff>=0.12,<1",
     "mypy>=1.16,<2",
+    "types-pyyaml>=6.0",
 ]
 
 [build-system]
@@ -35,6 +38,8 @@ target-version = "py312"
 
 [tool.ruff.lint]
 select = ["E", "F", "W", "I", "B", "UP", "SIM", "RUF"]
+# Комментарии и докстринги на русском: «с», «у», «−» — не опечатки в латинице.
+ignore = ["RUF001", "RUF002", "RUF003"]
 
 [tool.mypy]
 strict = true
diff --git a/services/recommender/tests/test_app.py b/services/recommender/tests/test_app.py
index 67be128..1a5dd86 100644
--- a/services/recommender/tests/test_app.py
+++ b/services/recommender/tests/test_app.py
@@ -57,3 +57,10 @@ def test_internal_status_requires_token() -> None:
     r = c.get("/internal/status", headers={"Authorization": "Bearer secret"})
     assert r.status_code == 200
     assert r.json()["version"] == "1.2.3"
+
+
+def test_wave_batch_requires_token_and_service() -> None:
+    body = {"user_id": "u", "session_id": "s"}
+    assert client().post("/internal/wave/batch", json=body).status_code == 401
+    r = client().post("/internal/wave/batch", json=body, headers={"Authorization": "Bearer secret"})
+    assert r.status_code == 503
diff --git a/services/recommender/tests/test_engine.py b/services/recommender/tests/test_engine.py
new file mode 100644
index 0000000..79d0603
--- /dev/null
+++ b/services/recommender/tests/test_engine.py
@@ -0,0 +1,142 @@
+import numpy as np
+import pytest
+
+from pipu_rec.wave.contexts import load_contexts
+from pipu_rec.wave.engine import CatalogIndex, Profile, Session, build_batch, taste_centroids, update_session
+
+
+def library(n_per_cluster: int = 20, seed: int = 0) -> CatalogIndex:
+    """Три «жанра» — кластера эмбеддингов; в кластере 5 исполнителей по 4 трека."""
+    rng = np.random.default_rng(seed)
+    centers = rng.normal(size=(3, 32))
+    ids, artists, embs = [], [], []
+    feats: dict[str, list[float | None]] = {
+        "bpm": [],
+        "energy": [],
+        "danceability": [],
+        "valence": [],
+        "acousticness": [],
+    }
+    for c in range(3):
+        for k in range(n_per_cluster):
+            ids.append(f"t{c}-{k}")
+            artists.append(f"a{c}-{k // 4}")
+            embs.append((centers[c] + 0.3 * rng.normal(size=32)).astype(np.float32))
+            feats["bpm"].append([90.0, 128.0, 172.0][c])
+            feats["energy"].append([0.2, 0.5, 0.85][c])
+            feats["danceability"].append(0.7)
+            feats["valence"].append(0.5)
+            feats["acousticness"].append(None)
+    return CatalogIndex.build(ids, artists, embs, feats, plays=[1] * len(ids), dim=32)
+
+
+def profile(**kw: object) -> Profile:
+    base = dict(
+        scores={},
+        disliked=set(),
+        disliked_artists=set(),
+        recent=set(),
+        played=set(),
+        liked_recent=set(),
+        rediscover=set(),
+        exploration=0.0,
+    )
+    base.update(kw)
+    return Profile(**base)  # type: ignore[arg-type]
+
+
+def cluster(track_id: str) -> int:
+    return int(track_id[1])
+
+
+def test_cold_start_returns_a_diverse_batch() -> None:
+    idx = library()
+    picks = build_batch(idx, profile(), Session(), [], n=5, rng=np.random.default_rng(1))
+    assert len(picks) == 5
+    assert len({p.id for p in picks}) == 5
+    assert len({idx.artist[idx.pos[p.id]] for p in picks}) == 5, "one track per artist in a batch"
+
+
+def test_taste_pulls_towards_liked_cluster() -> None:
+    idx = library()
+    liked = {f"t2-{k}": 3.0 for k in range(16)}
+    picks = build_batch(
+        idx, profile(scores=liked, played=set(liked)), Session(), [], n=5, rng=np.random.default_rng(2)
+    )
+    assert sum(cluster(p.id) == 2 for p in picks) >= 4
+
+
+def test_dislikes_recent_and_served_are_excluded() -> None:
+    idx = library(5)
+    p = profile(disliked={"t0-0"}, disliked_artists={"a1-0"}, recent={"t2-0"})
+    s = Session(served=["t2-1"])
+    for seed in range(5):
+        ids = {x.id for x in build_batch(idx, p, s, [], n=5, rng=np.random.default_rng(seed))}
+        assert not ids & {"t0-0", "t2-0", "t2-1"}
+        assert not any(idx.artist[idx.pos[i]] == "a1-0" for i in ids), "disliked artist"
+
+
+def test_running_context_prefers_fast_energetic_tracks() -> None:
+    idx = library()
+    running = load_contexts().activities["running"].rules
+    picks = build_batch(idx, profile(), Session(), running, n=5, rng=np.random.default_rng(3))
+    assert all(cluster(p.id) == 2 for p in picks), [p.id for p in picks]
+
+
+def test_half_time_counts_for_running() -> None:
+    from pipu_rec.wave.contexts import fit
+
+    running = load_contexts().activities["running"].rules
+    f = fit(
+        {
+            "bpm": np.array([85.0, 120.0]),
+            "energy": np.array([0.8, 0.8]),
+            "danceability": np.array([0.7, 0.7]),
+            "valence": np.array([np.nan, np.nan]),
+            "acousticness": np.array([np.nan, np.nan]),
+        },
+        running,
+    )
+    assert f[0] > 0.9 > f[1]
+
+
+def test_session_vector_follows_reactions_and_changes_course() -> None:
+    idx = library()
+    liked = {f"t0-{k}": 3.0 for k in range(10)} | {f"t2-{k}": 3.0 for k in range(10)}
+    cents = taste_centroids(idx, profile(scores=liked))
+    s = Session()
+    update_session(idx, s, [("t1-0", "like"), ("t1-1", "complete")], cents)
+    assert s.vec is not None
+    without = build_batch(idx, profile(scores=liked), Session(), [], n=5, rng=np.random.default_rng(4))
+    picks = build_batch(idx, profile(scores=liked), s, [], n=5, rng=np.random.default_rng(4))
+    assert sum(cluster(p.id) == 1 for p in picks) > sum(cluster(p.id) == 1 for p in without)
+    assert sum(cluster(p.id) == 1 for p in picks) >= 2, "the session pulls the wave towards its reactions"
+
+    update_session(idx, s, [("t1-2", "skip_early"), ("t1-3", "skip_early"), ("t1-4", "dislike")], cents)
+    assert s.skips_in_row == 0, "course changed after three skips"
+    vec = np.array(s.vec)
+    assert float(vec @ idx.emb[idx.pos["t1-0"]]) < 0.5
+
+
+def test_exploration_brings_unheard_tracks() -> None:
+    idx = library()
+    heard = {f"t2-{k}" for k in range(20)}
+    liked = {t: 3.0 for t in heard}
+    picks = build_batch(
+        idx,
+        profile(scores=liked, played=heard, exploration=0.4),
+        Session(),
+        [],
+        n=5,
+        rng=np.random.default_rng(5),
+    )
+    assert sum(p.source == "fresh" for p in picks) >= 2
+
+
+def test_bad_context_file_is_rejected(tmp_path) -> None:  # type: ignore[no-untyped-def]
+    bad = tmp_path / "c.yaml"
+    bad.write_text(
+        "activities: {x: {icon: a, rules: [{feature: tempo, min: 1, sigma: 1}]}}\nmoods: {}\n", "utf-8"
+    )
+    with pytest.raises(ValueError):
+        load_contexts(str(bad))
diff --git a/services/recommender/tests/test_features.py b/services/recommender/tests/test_features.py
new file mode 100644
index 0000000..acbb160
--- /dev/null
+++ b/services/recommender/tests/test_features.py
@@ -0,0 +1,56 @@
+import numpy as np
+
+from pipu_rec.analysis.features import EMBEDDING_DIM, SAMPLE_RATE, analyze, estimate_tempo, segments
+
+
+def metronome(bpm: float, seconds: float, freq: float = 1000.0) -> np.ndarray:
+    t = np.arange(int(seconds * SAMPLE_RATE)) / SAMPLE_RATE
+    period = 60.0 / bpm
+    phase = t % period
+    click = np.sin(2 * np.pi * freq * t) * np.exp(-phase * 60)
+    return (0.5 * click).astype(np.float32)
+
+
+def test_tempo_of_a_metronome() -> None:
+    for bpm in (90, 128, 170):
+        f = analyze(metronome(bpm, 40))
+        assert f.bpm is not None
+        # двойной / половинный темп допустим для щелчков, но для этих значений приор держит исходный
+        assert abs(f.bpm - bpm) < 2.5, (bpm, f.bpm)
+
+
+def test_no_rhythm_in_a_steady_tone() -> None:
+    t = np.arange(SAMPLE_RATE * 20) / SAMPLE_RATE
+    tone = (0.3 * np.sin(2 * np.pi * 440 * t)).astype(np.float32)
+    f = analyze(tone)
+    assert f.bpm is None or f.bpm_confidence < 0.3
+    assert f.key == "A"
+    assert f.embedding.shape == (EMBEDDING_DIM,)
+    assert abs(float(np.linalg.norm(f.embedding)) - 1) < 1e-4
+
+
+def test_louder_and_busier_means_more_energy() -> None:
+    quiet = (metronome(80, 30) * 0.05).astype(np.float32)
+    loud = metronome(160, 30)
+    noise = np.random.default_rng(1).normal(0, 0.2, len(loud)).astype(np.float32)
+    assert analyze(loud + noise).energy > analyze(quiet).energy
+
+
+def test_similar_sounds_have_closer_embeddings() -> None:
+    a = analyze(metronome(120, 30, 1000))
+    b = analyze(metronome(124, 30, 1100))
+    rng = np.random.default_rng(2)
+    c = analyze(rng.normal(0, 0.3, SAMPLE_RATE * 30).astype(np.float32))
+    assert float(a.embedding @ b.embedding) > float(a.embedding @ c.embedding)
+
+
+def test_segments_cover_long_tracks() -> None:
+    long = np.zeros(SAMPLE_RATE * 300, dtype=np.float32)
+    parts = segments(long)
+    assert len(parts) == 3
+    assert all(len(p) == SAMPLE_RATE * 30 for p in parts)
+    assert len(segments(np.zeros(SAMPLE_RATE * 60, dtype=np.float32))) == 1
+
+
+def test_estimate_tempo_needs_signal() -> None:
+    assert estimate_tempo(np.zeros(100, dtype=np.float32)) == (None, 0.0)
diff --git a/services/recommender/uv.lock b/services/recommender/uv.lock
index 0abf9be..a250848 100644
--- a/services/recommender/uv.lock
+++ b/services/recommender/uv.lock
@@ -207,6 +207,25 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/79/7b/2c79738432f5c924bef5071f933bcc9efd0473bac3b4aa584a6f7c1c8df8/mypy_extensions-1.1.0-py3-none-any.whl", hash = "sha256:1be4cccdb0f2482337c4743e60421de3a356cd97508abadd57d47403e94f5505", size = 4963, upload-time = "2025-04-22T14:54:22.983Z" },
 ]
 
+[[package]]
+name = "numpy"
+version = "2.5.4"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/95/b0/c7453d0b6e2073c3264468b106ee1563750cecc910965e67357e3698c83e/numpy-2.5.4.tar.gz", hash = "sha256:9a94cf751c9ad8ebaa835bcd3d40dacf8534ad086b88c38029b65123c7999d2a", size = 20866315, upload-time = "2026-10-10T20:05:31.422Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/d0/97/ba2074e92b7befea137e77ea8471e768bbd87c339b7e8c9f5a931949f977/numpy-2.5.4-cp312-cp312-macosx_10_13_x86_64.whl", hash = "sha256:c6342f54c67093cae5c0227eb0eb772fdb79f2a2c37a6eb278b9909ee06aa356", size = 17001609, upload-time = "2026-10-10T20:02:40.843Z" },
+    { url = "https://files.pythonhosted.org/packages/ff/a9/bac826765e971d8e16e2064e9ac7525fd69b40ac17c905033a7f5442023f/numpy-2.5.4-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:b11e8fda06a7d69f15ebf542660b74466c2e51094800c1fb794f47ad4faeef17", size = 12015718, upload-time = "2026-10-10T20:02:43.45Z" },
+    { url = "https://files.pythonhosted.org/packages/31/2f/5ea3570fcb8ccd0882bea99436a513b2c85dad8f774a2057849130a8fb99/numpy-2.5.4-cp312-cp312-macosx_14_0_arm64.whl", hash = "sha256:9cb18a327b49c5c337f972b03682f6a49855525faaf3c0d3e9c96cd0fd8880a8", size = 5451717, upload-time = "2026-10-10T20:02:46.169Z" },
+    { url = "https://files.pythonhosted.org/packages/34/f2/b4fc1bafca03868220b5eaf729d2f21ebd7d7b151c0f9e144fe212bbca35/numpy-2.5.4-cp312-cp312-macosx_14_0_x86_64.whl", hash = "sha256:aec3fc4b32ff82421274f5d205c559c51c840c8df66a78efd7f3612dd005a26a", size = 6789926, upload-time = "2026-10-10T20:02:48.139Z" },
+    { url = "https://files.pythonhosted.org/packages/dc/96/8319e2457ae4333c62c815c7006b869a4f60985c1e01024c2f8c6c040fe5/numpy-2.5.4-cp312-cp312-manylinux_2_27_aarch64.manylinux_2_28_aarch64.whl", hash = "sha256:fe4d21ab149f15e4e6043dfb0de87e6e5f34ac176cde83060e9802981fca2ac2", size = 15695312, upload-time = "2026-10-10T20:02:50.115Z" },
+    { url = "https://files.pythonhosted.org/packages/43/a3/c799c62e19c337e6d3770b08e475887fb30ce8477d3c09efca6b2f0228a6/numpy-2.5.4-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:fbde6962867ee75b48b0ee29b2b9372ec5d617799dbaf38e82dc0596f2f7738a", size = 16727283, upload-time = "2026-10-10T20:02:53.186Z" },
+    { url = "https://files.pythonhosted.org/packages/39/6b/3604e53fb00314d0dc1b94ec9125a1484f649c0a17480b1f0f0c7a9d6250/numpy-2.5.4-cp312-cp312-musllinux_1_2_aarch64.whl", hash = "sha256:381a7a3d2e65e64c0ec302795ab9dc12bb1e73f150904699c153716177eebdaf", size = 17047890, upload-time = "2026-10-10T20:02:56.038Z" },
+    { url = "https://files.pythonhosted.org/packages/4a/7a/e8b58a5289a0d464c52885de47c35a935cdd70c03a4c3ab94a5126416dd0/numpy-2.5.4-cp312-cp312-musllinux_1_2_x86_64.whl", hash = "sha256:b89d0aaae2fe498c648f4c4795c084db535af5bd98ef942b2a3681fb74ce8645", size = 18485839, upload-time = "2026-10-10T20:02:59.018Z" },
+    { url = "https://files.pythonhosted.org/packages/6f/c9/47094f597015009f310b8c900def59065ef1ff5a6fe7b51fc65ec58ec2c6/numpy-2.5.4-cp312-cp312-win32.whl", hash = "sha256:9968ab7e49b93ac6e1c3b2239732183152c9150f16308d30b66a372cffe3483c", size = 6138936, upload-time = "2026-10-10T20:03:01.626Z" },
+    { url = "https://files.pythonhosted.org/packages/12/33/fefe62073dc8acfd0f2b9ed7c003af2f50aa61555e113e6db02b8f79f145/numpy-2.5.4-cp312-cp312-win_amd64.whl", hash = "sha256:a7b1b6353e36a7e50de2973a38d705c88ee93adcf120673cee7f45a4a3fa223a", size = 12573091, upload-time = "2026-10-10T20:03:04.349Z" },
+    { url = "https://files.pythonhosted.org/packages/1a/07/161270b0c2eec56e4c905f6d6d22e1b836887b2cb189d3f5820aa588e9dd/numpy-2.5.4-cp312-cp312-win_arm64.whl", hash = "sha256:aa1cce2ff3f8d953de38b76bf44602caeb69f101430208f64a10067f7cb4b1d3", size = 10521630, upload-time = "2026-10-10T20:03:06.767Z" },
+]
+
 [[package]]
 name = "opentelemetry-api"
 version = "1.45.1"
@@ -243,8 +262,10 @@ version = "0.1.0"
 source = { editable = "." }
 dependencies = [
     { name = "fastapi" },
+    { name = "numpy" },
     { name = "psycopg", extra = ["binary"] },
     { name = "pydantic-settings" },
+    { name = "pyyaml" },
     { name = "redis" },
     { name = "uvicorn", extra = ["standard"] },
 ]
@@ -255,13 +276,16 @@ dev = [
     { name = "mypy" },
     { name = "pytest" },
     { name = "ruff" },
+    { name = "types-pyyaml" },
 ]
 
 [package.metadata]
 requires-dist = [
     { name = "fastapi", specifier = ">=0.115,<1" },
+    { name = "numpy", specifier = ">=2.2,<3" },
     { name = "psycopg", extras = ["binary"], specifier = ">=3.2,<4" },
     { name = "pydantic-settings", specifier = ">=2.9,<3" },
+    { name = "pyyaml", specifier = ">=6.0,<7" },
     { name = "redis", specifier = ">=6.2,<7" },
     { name = "uvicorn", extras = ["standard"], specifier = ">=0.34,<1" },
 ]
@@ -272,6 +296,7 @@ dev = [
     { name = "mypy", specifier = ">=1.16,<2" },
     { name = "pytest", specifier = ">=8.4,<9" },
     { name = "ruff", specifier = ">=0.12,<1" },
+    { name = "types-pyyaml", specifier = ">=6.0" },
 ]
 
 [[package]]
@@ -478,6 +503,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f3/93/181df62699d9b5aca1d87e5cfda131dac87e3cdaebf668662f7206ca3470/starlette-1.9.0-py3-none-any.whl", hash = "sha256:fd3f159936e882d06c1108f84688f7cda2cf85fc6a592a50edbd175e882c2ddc", size = 80335, upload-time = "2026-10-18T15:50:31.526Z" },
 ]
 
+[[package]]
+name = "types-pyyaml"
+version = "6.0.12.20260906"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/90/6e/abec85b9013db5b934b0280a6dd104904d84f7bcbaab2e2f3def87ac7463/types_pyyaml-6.0.12.20260906.tar.gz", hash = "sha256:f59c1cc05010b833d2d72287bbaa72610106b28d42d89a907313117faba85212", size = 18649, upload-time = "2026-09-06T06:35:35.362Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/15/c0/fc0644b7ddcfb969e95845837143cb5173ddd6e06ee4ba5fc493cd9329b7/types_pyyaml-6.0.12.20260906-py3-none-any.whl", hash = "sha256:bca893ff0d51df5c9053137d5d0e6ccd36e939a196356f1d5c16372422f5137b", size = 21282, upload-time = "2026-09-06T06:35:34.372Z" },
+]
+
 [[package]]
 name = "typing-extensions"
 version = "4.16.0"