Next Docs Review

Deslop-as-a-Service

Stop your AI coding agent from hallucinating outdated Next.js APIs.

This project loads the entire Next.js and React documentation into a system prompt, then uses Gemini Flash Lite to retrieve only the sections relevant to a given prompt. The result is grounded, citation-backed context that keeps coding agents honest.

How it works

User prompt ──> RAG endpoint ──> Gemini Flash Lite (full docs in system prompt)
                                         │
                                   Relevant doc sections
                                   (verbatim, with citations)

Two API endpoints:

Endpoint	What it does
POST /api/rag	Takes a prompt, returns relevant Next.js/React doc sections
POST /api/review	Takes code, retrieves relevant docs via RAG, then reviews the code against them using Claude Sonnet

Install as a plugin

Includes a pre-write hook that reviews code against the docs before every Write/Edit.

# Add the marketplace
/plugin marketplace add vercel-labs/next-docs-agentic-rag

# Install the plugin
/plugin install next-docs-review@next-docs-plugins

Run locally

pnpm install
pnpm dev

Set AI_GATEWAY_API_KEY in your environment.

Open http://localhost:3000 to try the demo UI — it has a RAG tab for doc retrieval and a Review tab for code review.