> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getlimelight.io/llms.txt
> Use this file to discover all available pages before exploring further.
# Introduction
> The runtime context layer for AI-assisted development. Capture, correlate, and query everything that happens when your code runs.
## Get Started
Set up Limelight in your app and start debugging with real runtime context — on the client, the server, or both.
Install the SDK and connect your React Native or React app in under 60
seconds.
Add middleware to your Express, Next.js, or Node.js server to capture
incoming requests.
## Two Ways to Use Limelight
**AI-powered debugging** — Give Cursor, Claude Code, or any MCP-compatible
editor direct access to your app's runtime. Ask questions in natural language
and get answers backed by correlated runtime data. The AI calls 11 debugging
tools automatically.
**Visual debugging workspace** — Interactive timeline with network requests,
renders, state, console logs, and full-stack traces. Works locally with zero
sign-up. All data stays on your machine.
## Core Features
Capture and inspect all HTTP requests with full headers, payloads, timing,
and GraphQL intelligence including complexity scoring.
Automatically trace requests from client to server. See the complete request
lifecycle in one place.
Find unnecessary re-renders automatically. Zero config, zero Babel plugins.
Detects render loops, unstable props, and cascades.
Debug Zustand and Redux stores in real-time. See state changes, diffs, and
action history.
Stream console logs in real-time with filtering, search, and stack traces.
Automatic detection of N+1 queries, render loops, race conditions, retry
storms, and other runtime anti-patterns.
## Why Limelight?
AI assistants can read your code but can't see what happens at runtime.
Limelight bridges that gap with structured, pre-analyzed context.
Not just raw events — Limelight correlates them into causal chains and
detects anti-patterns automatically via the Debug IR engine.
One line of code. No wrappers, no Babel plugins, no Metro config. Just
works.
All data stays local. Automatic redaction of sensitive headers. No
telemetry, no cloud dependency.
Client-to-server request tracing and full-stack correlation — linked
automatically via trace IDs.
React, React Native, Node.js, Express, Next.js, Expo. Zustand and Redux
state tracking built in.
## Learn More
SDK capture, correlation engine, Debug IR, and how context reaches your AI.
Debug IR, causal chains, and the correlation engine — the core ideas behind
Limelight.
All 11 MCP tools, example workflows, and what your AI sees when it debugs.
The SDK is fully open source. Star us on GitHub!