Darwin Router for Antigravity
Self-improving semantic LLM router — monitor, manage, and visualize Darwin Router directly inside VS Code / Antigravity.
Features
🟢 Real-Time Status Bar Monitoring
A persistent status bar item shows whether your local Darwin Router proxy is online or offline, polling the /healthz endpoint every 5 seconds.
- Active:
✓ Darwin: Active — click to open the live dashboard
- Offline:
⊘ Darwin: Offline — highlights with a warning background
An activity bar panel displays live telemetry fetched from /stats:
- Total requests and exemplar count
- Route distribution with animated bar charts (simple / reasoning / vision)
- Cost savings — actual vs. counterfactual baseline
- Self-improvement metrics — judge evaluations & exemplars auto-inserted
- Recent request log with route badges, query previews, latency, and timestamps
🚀 Server Process Management
Start and stop the Darwin Router backend directly from the command palette or the sidebar toolbar — no terminal required.
| Command |
Description |
Darwin: Start Server |
Launches uv run uvicorn router.proxy:app --port 8787 in your AI-Summit repo |
Darwin: Stop Server |
Gracefully terminates the running proxy subprocess |
Darwin: Open Dashboard |
Opens http://127.0.0.1:8787/ in your default browser |
Darwin: Check Status |
Force-refreshes health and shows a notification |
Darwin: View Stats Panel |
Focuses the sidebar stats webview |
⚙️ Configurable Settings
| Setting |
Default |
Description |
darwin.serverUrl |
http://127.0.0.1:8787 |
Base URL for the proxy server |
darwin.pollingInterval |
5000 |
Health-check interval in ms |
darwin.autoStartBackend |
false |
Auto-start the backend on activation |
darwin.backendPath |
"" |
Path to AI-Summit repo (prompts on first use) |
Getting Started
Prerequisites
- VS Code ≥ 1.80.0 (or Antigravity)
- The AI-Summit repository cloned locally
- uv installed for Python dependency management
- Ollama running locally with at least
qwen3:4b pulled
Install from VSIX
code --install-extension darwin-router-antigravity-0.1.0.vsix
First Run
- Open the Command Palette (
Ctrl+Shift+P)
- Run Darwin: Start Server
- Select your AI-Summit repository folder when prompted
- The status bar will turn green when the backend is ready
- Open the Darwin Router sidebar to see live stats
Development
# Install dependencies
npm install
# Compile TypeScript
npm run compile
# Watch mode
npm run watch
# Package .vsix
npm run package
Architecture
darwin-router-antigravity/
├── src/
│ ├── extension.ts # Lifecycle, commands, status bar, subprocess
│ └── statsViewProvider.ts # Sidebar webview with live dashboard
├── package.json # Extension manifest
├── tsconfig.json # TypeScript config
├── .vscodeignore # Files excluded from .vsix
└── README.md
The extension communicates with the Darwin Router Python backend via HTTP:
GET /healthz — health check (polled every N seconds)GET /stats — aggregated telemetry for the dashboardPOST /v1/chat/completions — OpenAI-compatible completions endpoint
License
MIT © KrishnakanthJ
