Google Fit REST API was closed to new sign-ups on 2024-05-01 and shuts down
end of 2026, surfacing as "Access blocked: this app's request is invalid"
when starting the OAuth flow.
- Swap the 10 fitness.* OAuth scopes for the 3 googlehealth.*.readonly
scopes (activity_and_fitness, health_metrics_and_measurements, sleep).
- Replace fitness/v1 dataset:aggregate + sessions calls with
health.googleapis.com/v4/users/me/dataTypes/{steps,total-calories,
heart-rate,sleep}/dataPoints, filtered to today's window.
- Read the v4 DataPoint union defensively (the per-type schema is sparsely
documented) and log the first raw sample at debug so we can refine field
paths after the first real OAuth.
- Output Signal contract is unchanged — agents and downstream consumers
see the same steps/activity/heart_rate/sleep signals.
Cloud Console still needs: enable Google Health API, add the 3 scopes to
the consent screen, add test user (all googlehealth scopes are Restricted).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
oO
One tip. Right now. Feels like magic.
oO learns who you are from the apps you already use and surfaces one perfectly-timed suggestion — an advice or a todo — on a black page. No feed. No dashboard. One tip.
Why
Everyone has too many tasks, too many apps, too much noise. What people actually need is a single, well-chosen nudge at the right moment. oO is that nudge, powered by a recommendation engine that gets smarter the more of your life it sees.
Product principles
- One thing at a time. The UI is a black page with one tip. That's the product.
- We don't own your data, we understand it. Connect your apps; we read what we need, when we need it.
- Magic requires craft. Precision, timing, and restraint matter more than features.
- Private by default. Tokens are encrypted, models are per-user, deletion is one click.
Prototype scope (Phase 0)
Three pages. That's it.
| Page | What it does |
|---|---|
| Sign in | Google / Apple OAuth. No passwords. |
| Connect | A list of integrations. Tap "Todoist" → OAuth flow → token stored. |
| Tip | Black page. One tip. Tap to dismiss / done / snooze. |
Under the hood the "pick a tip" call already routes through a recommender service with a pluggable policy — so v0 is literally "random Todoist task" but every other version slots into the same contract.
Architecture at a glance
┌──────────┐ OAuth ┌────────────┐
│ Web / │──────────▶│ auth │
│ Mobile │ └─────┬──────┘
│ client │ │ JWT
│ │ REST/GraphQL ▼
│ │────────▶┌───────────────┐
└──────────┘ │ gateway │──┬──▶ profile
└───────┬───────┘ ├──▶ integrations ──▶ Todoist / Google / ...
│ └──▶ recommender ──▶ ml/serving (Python)
▼
┌───────────────┐
│ events │ ◀── integrations emit normalized events
│ (Kafka/NATS) │ ──▶ ml/pipelines (features, training)
└───────────────┘
More detail in docs/architecture/ and decisions in docs/adr/.
Monorepo layout
See CLAUDE.md for the full tree and conventions.
apps/ web, ios, android
services/ gateway, auth, profile, integrations, recommender, events, notifier
packages/ shared-types, sdk-js, ui
ml/ pipelines, features, registry, experiments, serving
infra/ docker, k8s, terraform, ci
docs/ architecture, adr, api
AI stack
oO is AI-native. Domain-specialized agents pre-compute snippets describing the user's state from one angle each; an orchestrator LLM reasons over the assembled snippets and produces one tip (ADR-0013). The orchestrator iterates a registry, not a hardcoded list (ADR-0014) — adding an agent is a manifest change, nothing else.
Three-tier layout
| Tier | Service | Purpose | Where |
|---|---|---|---|
| Inference | Ollama | Local LLM + embedding; no data leaves the host | localhost:11434 |
| Routing | LiteLLM | Unified OpenAI-compatible API; model aliases; cloud fallback | llm.alogins.net (Agap shared) |
| Testing | OpenWebUI | Prompt iteration, model comparison, manual evals | ai.alogins.net (Agap shared) |
Tip generation pipeline (ADR-0013, M2)
User signals Pre-compute agents (every 15 min)
(tasks, calendar, ──▶ ml/agents/{overdue-task, momentum, ──▶ agent_outputs
patterns, time) time-of-day, recent-patterns, (per-agent TTL)
focus-area, ...}
│
Eligibility filter: required consents + │
active context + per-user prefs (ADR-0014) ◀──┘
▼
Orchestrator prompt (`v4-orchestrator`)
= global prefs + active context + snippets
▼
LiteLLM ──▶ Ollama (local) / cloud fallback
▼
Tip shown to user
▼
User reaction (done / snooze / dismiss + dwell)
▼
Logged to tip_feedback for observability
(no online ML reward loop — see ADR-0013)
Why LiteLLM as gateway: All LLM calls use a single LITELLM_URL env var. Swapping from qwen2.5 to llama3.2, or routing a fraction to Claude for A/B, is a config change in LiteLLM — zero code change in oO. The model name in tip_scores tells you exactly which model produced each tip.
Why Ollama first: Tips contain personal context. Local inference means no user data leaves the host for the inference path. Cloud models (Anthropic, OpenAI) are opt-in fallbacks for evaluation and simulation only, gated behind ANTHROPIC_API_KEY.
Models (planned; routes through LiteLLM)
| Alias | Model | Task |
|---|---|---|
tip-generator |
qwen2.5:1.5b (default) | Generate typed tip candidates from user context; local-first via Ollama |
embedder |
nomic-embed-text | Task clustering, semantic similarity for dedup; local via Ollama |
judge |
claude-haiku-4-5 (cloud, eval-only) | Offline sim judge; rates tip quality for A/B (requires ANTHROPIC_API_KEY) |
All model calls route through LiteLLM at llm.alogins.net (or LITELLM_URL env var) using model aliases. This decouples tip generation from model selection — swap the backend model in LiteLLM config without code changes. See ADR-0008.
Roadmap
Issues and open work are tracked in Gitea milestones. Pick an issue, check its milestone (= phase), read the service's README.md, ship.
Phase 0 — Walking skeleton (M0) ✓ shipped
Single user signs in with Google, connects Todoist, sees one random task on a black page. Deletion works. Auth, integrations, recommender stub, PWA, feedback loop, ToS/privacy, metrics baseline.
Phase 1 — Real signal + in-the-moment delivery (M1) ✓ shipped
Tips are picked, not drawn from a hat. Event bus, Todoist sync, task features, ε-greedy policy (v1 + v2), web push, NATS JetStream bridge, shadow-policy registry, offline sim framework, per-user profile features, admin + ML ops console (apps/admin).
Phase 2 — AI tips + multi-source signals (M2) ✓ shipped
Tips are AI-generated from user context. Multi-agent pipeline (ADR-0013): five pre-compute agents (overdue-task, momentum, time-of-day, recent-patterns, focus-area) emit prompt snippets; orchestrator LLM produces one tip. Unified Profile + agent registry + auto-inference framework (ADR-0014). LLM output validation + fallback. LiteLLM gateway, model benchmarking, prompt research, MLflow tracing.
Phase 3 — Native mobile (M3)
iOS (SwiftUI + APNs) and Android (Compose + FCM). notifier service gains APNs + FCM channels. Auth migrated from Auth.js to dedicated OIDC provider. Decide-and-deliver scheduler. See M3 milestone.
Phase 4 — MLOps at scale (M4)
Retraining pipeline, feature-to-prompt batch jobs, prompt optimization loop, LLM fine-tuning on reaction signals, modular-monolith import-boundary lint, online experiments framework, drift monitoring. See M4 milestone.
Phase 5 — Production hardening (M5)
Audit logging, key rotation, k3s → k8s, multi-region, public integration SDK, billing. See M5 milestone.
Contributing
This repo is split into independent modules; most tickets belong to exactly one. Pick an issue from Gitea, read the service's README.md, ship.
Conventions and per-service guidance live in CLAUDE.md.
License
All rights reserved — 2026. Contact the owner for licensing inquiries. (We'll switch to an OSS license for non-sensitive packages once the public SDK lands in Phase 5.)