A relational AI companion framework built on Claude Code Agent SDK.
Your AI remembers, reaches out, and grows — inside the security model you already trust.

What makes this different

Most AI chat apps are stateless wrappers around an API. Resonant is a persistent, autonomous companion that:

Maintains sessions — conversation threads with daily rotation and named threads, session continuity across restarts
Reaches out on its own — configurable orchestrator with morning/midday/evening wake-ups, failsafe check-ins when you've been away
Understands context — hooks system injects time awareness, conversation flow, emotional markers, and presence state into every interaction. Claude Code's native memory system handles long-term recall
Lives on multiple channels — web UI, Discord, Telegram, voice (ElevenLabs TTS + Groq transcription)
Runs on your machine — no cloud dependency beyond your Claude Code subscription. SQLite database, local files, your data stays yours

Screenshots

Desktop

Chat	Tool Calls	Canvas

Reactions & Voice	Thinking	Search

Settings

Mobile (PWA)

Chat	Thinking	Tool Calls

Quick Start

New to this? See docs/GETTING-STARTED.md for a step-by-step guide with screenshots and troubleshooting.

Prerequisites: Node.js 20+, Claude Code (logged in)

git clone https://github.com/codependentai/resonant.git
cd resonant
npm install
node scripts/setup.mjs    # Interactive setup wizard
npm run build
npm start

Open http://localhost:3002 and start talking.

How It Works

Resonant wraps the Claude Code Agent SDK in a full companion infrastructure:

┌─────────────┐     ┌──────────────┐     ┌─────────────────┐
│  Web UI     │────▶│  Express +   │────▶│  Claude Code     │
│  (Svelte)   │◀────│  WebSocket   │◀────│  Agent SDK       │
└─────────────┘     │              │     │                  │
┌─────────────┐     │  Orchestrator│     │  Your CLAUDE.md  │
│  Discord    │────▶│  Hooks       │     │  Your MCP servers│
│  Telegram   │────▶│  Sessions    │     │  Your tools      │
└─────────────┘     └──────────────┘     └─────────────────┘

The companion runs as a Node.js server. It spawns Claude Code Agent SDK queries for each interaction. Your companion's personality lives in CLAUDE.md. Its memory lives in Claude Code's native memory.md system. Everything is configurable.

Configuration

All configuration lives in resonant.yaml (created by setup wizard):

identity:
  companion_name: "Echo"
  user_name: "Alex"
  timezone: "America/New_York"

agent:
  model: "claude-sonnet-4-6"          # Interactive messages
  model_autonomous: "claude-sonnet-4-6" # Scheduled wakes

orchestrator:
  enabled: true                       # Autonomous scheduling

Full reference: examples/resonant.yaml

Context & Memory

Your companion's personality lives in CLAUDE.md. Long-term memory uses Claude Code's native memory.md system — your companion learns and remembers automatically across sessions.

The hooks system injects real-time context into every message: current time, conversation flow, emotional markers, presence state, and more. See docs/HOOKS.md for details.

Themes

The UI is fully customizable via CSS variables. Copy a theme and import it:

cp examples/themes/warm-earth.css packages/frontend/src/theme.css
# Add @import './theme.css'; to packages/frontend/src/app.css
npm run build --workspace=packages/frontend

See examples/themes/README.md for the full variable reference.

Features

Chat

Real-time streaming with interleaved tool visualization
Thread management (daily + named), pinning, archiving
Keyword search (Ctrl+K) and semantic search — find messages by meaning, not just keywords, using local ML embeddings (docs)
File sharing and image preview
Canvas editor (markdown, code, text, html)
Message reactions
Reply-to context

Voice

Voice recording with transcription (Groq Whisper)
Text-to-speech responses (ElevenLabs)
Prosody analysis (Hume AI, optional)

Agent Tools

Your agent gets a built-in CLI (tools/sc.mjs) with commands for reactions, voice messages, canvas, file sharing, semantic search, timers, impulses, watchers, and Telegram media. These are injected into the agent's context automatically. See docs/TOOLS.md for the full reference.

Orchestrator

Configurable morning/midday/evening check-ins
Failsafe system — escalating outreach when you've been away
Timer and trigger system (impulses + watchers)
Condition-based automation (presence state, time windows)

Integrations

Discord — full bot with pairing, rules, per-server/channel configuration
Telegram — direct messaging, media sharing, voice notes
Push notifications — web push via VAPID
MCP servers — any MCP server in your .mcp.json

Settings

Preferences (identity, models, integrations) — writes directly to resonant.yaml
Orchestrator task management (enable/disable, reschedule)
System status monitoring
MCP server status
Discord pairing and rules management
Push notification device management
Agent session history

Project Structure

resonant/
├── packages/
│   ├── shared/          # Types + WebSocket protocol
│   ├── backend/         # Express + WS + Agent SDK
│   └── frontend/        # SvelteKit UI
├── examples/
│   ├── resonant.yaml    # Full config reference
│   ├── CLAUDE.md        # Starter companion personality
│   ├── wake-prompts.md  # Orchestrator prompt templates
│   └── themes/          # CSS theme examples
├── tools/
│   └── sc.mjs           # Agent CLI (reactions, search, timers, etc.)
├── docs/
│   ├── HOOKS.md          # Context injection documentation
│   ├── TOOLS.md          # Built-in agent tools reference
│   └── semantic-search.md # Semantic search setup & usage
└── scripts/
    └── setup.mjs        # Interactive setup wizard

Development

npm run dev              # Backend with hot reload (tsx watch)
npm run dev:frontend     # Vite dev server with proxy

Deployment

For production, use PM2:

npm run build
pm2 start ecosystem.config.cjs
pm2 save
pm2 startup              # Auto-start on boot

Updating

Resonant uses git tags for releases. To update an existing installation:

cd resonant
git pull                 # Get latest changes
npm install              # Install any new dependencies
npm run build            # Rebuild all packages

Then restart your process (PM2, systemd, or however you run it):

pm2 restart resonant     # If using PM2
# or just stop and run: npm start

To update to a specific version instead of latest:

git fetch --tags
git checkout v1.1.0      # Replace with desired version
npm install
npm run build

Your data (data/, resonant.yaml, CLAUDE.md, .mcp.json, .env) is gitignored and won't be affected by updates.

Check the Releases page for changelogs.

Authentication

Resonant uses the Claude Code Agent SDK — no API key needed. Your companion runs queries through your existing Claude Code subscription. Just make sure you're logged in:

claude login

The web UI has optional password protection (set in resonant.yaml or Settings > Preferences).

License

Apache 2.0 — see LICENSE. Attribution required.

Built by

Codependent AI — building infrastructure for AI companion relationships.

resonant