Show HN: Patina, an AI that learns your judgment, not just your tasks

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An AI that learns you — the longer you use it, the less you need to tell it.

Your cognitive ceiling isn't set by your intelligence. It's set by your cognitive load. Patina is a persistent extension of your cognition: it holds your context, tracks your beliefs about your world, mirrors your judgment, and improves with every interaction.

Day 1: Export your Slack. In 5 minutes, see everything you've missed, forgotten, or let slip.

Day 30: It knows your priorities, drafts in your voice, and dismisses noise automatically.

Day 90: It predicts what you'd do, catches contradictions across conversations, and operates silently.

Quick Start

Install

uv tool install patina

Initialize

patina init

Ingest from a Slack export (immediate value)

patina ingest --from-export ~/Downloads/slack-export.zip

See what needs your attention

patina catch-up

See everything ranked by priority quadrant

patina priorities

What It Does

Priority + judgment

patina catch-up # unified view: needs action / new / waiting patina priorities # grouped by quadrant (Q1-Q4) patina dismiss # dismiss noise, trains the model patina objectives add "Ship v2" --keywords "release,deploy"

Style + drafting

patina style build # build communication profiles from sent messages patina style show # view patterns for a person patina draft --to --context "follow up on the timeline"

Belief graph

patina extract # extract beliefs from observations via LLM patina beliefs --type person # entities with claim counts patina stale # decayed beliefs below confidence threshold patina contradictions # conflicting claims patina relationships --top 20 # trust level + activity map

Graduated autonomy

patina autonomy status # current level, accuracy, anti-patterns patina approve # approve a proposed action patina reject # reject (freezes advancement, stores anti-pattern) patina autonomy set-level # manual override (0-6)

Live adapters

patina connect slack --token "xoxb-..." patina ingest # fetch from configured adapters

Heartbeat (background tasks)

patina heartbeat once # ingest + decay + escalation check patina heartbeat start --interval 30

Interactive conversation (Claude Agent SDK)

patina chat

HTTP server for gateway integration

patina serve --port 8321

Telegram gateway (talk to your agent from your phone)

patina gateway

How It Works

┌─────────────────────────────────────────────────┐ │ Tier 3: Frontier LLM (Claude, GPT-4o) │ Synthesis, drafts, contradictions ├─────────────────────────────────────────────────┤ │ Tier 2: Local LLM (Qwen 3.x, Ollama) │ Entity extraction, classification ├─────────────────────────────────────────────────┤ │ Tier 1: Deterministic (no LLM) │ Scoring, decay, graph queries └─────────────────────────────────────────────────┘ ↓ all tiers feed ↓ ┌─────────────────────────────────────────────────┐ │ Belief Graph (SQLite) │ │ Entities → Relationships → Claims │ │ Confidence decay · Provenance · Contradictions │ └─────────────────────────────────────────────────┘

The system is fully functional at Tier 1 alone (zero LLM calls). Each tier adds capability but never load-bears. Local-first: all data stays in ~/.patina/store.db.

What Makes This Different

Persistent belief model with decay — not a message archive, a living world model

Judgment learned from your decisions — not universal rules, YOUR priorities

Graduated autonomy earned by accuracy — not configured, proven

Local-first, model-agnostic — runs offline, no vendor lock-in

Deterministic core — the intelligence is math and graphs, not LLM calls

Day-one value from export — no warm-up period

MCP Server

Patina runs as an MCP server for conversational use from Claude Code, Cline, or any MCP host. 21 tools including session_checkpoint for graceful context handoff and recent_messages for conversational continuity across stateless sessions.

{ "mcpServers": { "patina-core": { "command": "uv", "args": ["run", "patina-mcp"], "cwd": "/path/to/patina" } } }

Configuration

All config lives in ~/.patina/config.yaml. Credentials never leave your machine.

owner: user_ids: ["U0ABC123"] name: "Your Name" adapters: chat:

• provider: slack

token: "xoxb-..." heartbeat: enabled: true interval_minutes: 30

Development

git clone https://github.com/Sanctum-Origo-Systems/patina.git cd patina uv sync

Generate demo data and start chatting

uv run python scripts/generate_demo_export.py --output demo-export.zip uv run patina init uv run patina ingest --from-export demo-export.zip uv run patina extract --model sonnet # re-run if it times out — skips already-processed uv run python scripts/seed_decisions.py # demo only — simulates user behavior for trust scoring uv run patina style build # build communication style profiles from sent messages uv run patina chat

Try asking:

"What needs my attention?"

"Who do I trust most?"

"What do we know about Jordan?"

"Draft a message to Alexis about the Atlas timeline"

"Any contradictions in my beliefs?"

Run tests + evals

uv run pytest uv run pytest eval/deterministic/

Lint

uv run ruff check && uv run ruff format

License

Apache 2.0

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A persistent cognitive backend with belief graph and earned autonomy

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