Files
oO/ml
alvis ad6747c242 feat(profile): /api/profile + eligibility filter + inference framework (ADR-0014 steps 4-6)
Step 4 — /api/profile read-through API:
  GET  /api/profile          → { user, prefs, consents, contexts }
  PATCH /api/profile/prefs/:scope  upsert user_preferences (source='user')
  PATCH /api/profile/consents      grant / revoke consent keys
  PATCH /api/profile/contexts      create / activate / deactivate contexts
  Legacy consentGiven bit folded in as data:core fallback.

Step 5 — registry-driven eligibility filter:
  fetchRegistry() exported from agent-registry.ts.
  profile/eligibility.ts: getEligibleAgentIds(userId) — filters by required
  consents, silenced_in_contexts, and user_preferences[enabled=false].
  fetchOrchestratorTip filters agent_outputs to eligible set before calling
  ml/serving /recommend. Fail-closed: registry unavailable → empty set.

Step 6 — shared context-inference framework (#111) + time-of-day proof (#112):
  ml/agents/inference/: UserHistory, FeedbackEvent, run_inference().
  Framework: cold-start, min_history gating, error fallback, structured logs.
  TimeOfDayAgent v1.1.0: inferred_params=[preferred_hour]; also reads
  quiet_start/quiet_end from agent_prefs. agent_prefs injected by TS caller.
  AgentInput gains agent_prefs field.
  ml/serving: POST /agents/{agent_id}/infer endpoint.
  agent-outputs.ts computeAndStore: loads prefs before compute, calls /infer
  after, persists results (source='inferred'); user overrides never touched.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-05 11:14:25 +00:00
..

ml/

Python. Owns models, features, training, online scoring.

Dir Role Phase
serving/ FastAPI online scorer (/score, /generate) + LiteLLM gateway + prompt registry (prompts.py) + JetStream consumers for signals.> / feedback.>, called by recommender 12
features/ context assembler (context.py): signals → PromptContext; profile-feature schema mirror (profile_schema.py); Feast adapter later 2
pipelines/ batch feature + training scripts 4
registry/ MLflow-backed model registry integration 4
experiments/ A/B assignment + multi-armed bandit policies 4
notebooks/ research; never imported by production code

Principles

  • Every model has a model card in registry/ describing inputs, offline metrics, fairness checks, and rollout history.
  • Online inference must be stateless and < 50ms p99.
  • Training reads from the offline feature store; serving reads from the online feature store; definitions are shared (no train/serve skew).
  • Shadow deploys before any policy change that affects real users.

Feature contract

Profile features (batched)

User-level features (completion rate, preferred hour, tip volume…) are computed by the TypeScript recommender and shipped to ml/serving on every /score and /generate call as profile_features: dict | None. The Python mirror in features/profile_schema.py documents each feature's name, dtype, TTL, source, and null fallback — keep it in sync with services/api/src/profile/registry.ts (a CI-style test asserts names and ttlSec values match). See ADR-0011.

Context features (JIT)

Request-time signals assembled by features/context.py (hour_of_day, day_of_week, task list). These are never cached — they are derived from the system clock and the live Todoist feed at the moment of the score call. CONTEXT_FEATURES in context.py declares freshness, source, and fallback for each field (issue #61).

Prompt registry

serving/prompts.py keys tip-generation prompts by stable version string. Adding a new variant means adding an entry — no caller changes. Selection precedence: POST /generate body's prompt_version field → env DEFAULT_PROMPT_VERSION"v1". The TypeScript recommender drives selection via TIP_PROMPT_VERSION (single value or comma-separated rotation); the version actually used flows back in the response and is persisted to tip_scores.prompt_version so the admin reward-analytics dashboard can bucket reactions per variant.