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DepthIndex AIAgentic Documentation Intelligence
On-device AI search, self-documenting agent architecture, and reasoning engine for any documentation site.
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What is DepthIndex?
DepthIndex is a production-grade, framework-agnostic documentation intelligence engine designed to transform standard documentation sites into AI-native experiences. Operating completely inside the user's browser, it combines BM25 keyword matching, sparse vector modeling, local ONNX classification, and WebLLM synthesis to answer queries at sub-50ms latency without data leaving the user's device.
Key Features
- Zero-Configuration Setup: One-shot installation with zero required configuration.
- Self-Documenting Types: Built-in TSDoc declarations with
@examplecode snippets accessible via./types. - Sidebar AI Layout: Flexible sidebar interface that shifts documentation content without obscuring text.
- Deep Context Awareness: Instantly answers queries about "this page", "here", or "this document".
- Adaptive Intelligence: 4-layered local AI engine with zero-shot intent detection and LocalStorage feedback learning.
- Starter Templates: Production starter templates for VitePress, Docusaurus, Astro, Nextra, and Minimal HTML.
Quick Start
Get up and running with DepthIndex in 3 lines of code:
typescript
// .vitepress/config.ts
import { defineConfig } from 'vitepress'
import DepthIndex from 'vitepress-plugin-depthindex'
export default defineConfig({
vite: { plugins: [DepthIndex()] }
})Check the detailed setup instructions in the Quick Start Guide.