ReviewScope is an open-source AI PR reviewer for GitHub that goes beyond the diff.
It combines AST-based static analysis and issue validation to deliver low-noise, actionable code reviews — not generic AI comments.
You bring your own API key, so you stay in control of cost and data.

ReviewScope analyzes pull requests end-to-end, evaluating code quality, security, performance, and maintainability.
It runs on your own API keys, so ReviewScope never charges for tokens and never owns your data.

Key Capabilities:

• 🔍 Static Analysis (AST) — Deterministic rule detection with zero hallucinations (no LLM required)
• 🧠 AI-Powered Reviews — Complexity-aware routing between fast (Gemini) and deep-reasoning (GPT-4) models
• 📚 Semantic RAG — Retrieves only the relevant code context from your repository
• ⚡ Smart Batching — Safely reviews large PRs by intelligently chunking files
• 🎯 Rule Validation — LLM classifies static findings as valid, false-positive, or contextual
• 💰 Bring Your Own API Keys — Transparent pricing, no markup, no lock-in

• Individual developers who want better PR feedback
• Open-source maintainers dealing with review fatigue
• Small teams that want consistency without noise
• Companies that need transparent, controllable AI reviews

Most AI PR reviewers today:

• Comment on everything
• Miss why a change was made
• Produce noisy, low-confidence feedback

ReviewScope is built to behave more like a senior engineer:

• Understands intent, not just syntax

• Verifies PRs against linked issues

• Avoids comments unless there’s real signal

• Suggests concrete fixes when possible

• DODO Payments (billing integration)

• GitHub API (PR data, code retrieval)

Frontend & Dashboard:

• Next.js 16 (Turbopack)
• TailwindCSS + shadcn/ui
• NextAuth (GitHub OAuth)

Backend & Processing:

• Node.js workers (background PR review jobs)
• Drizzle ORM + PostgreSQL (metadata & usage tracking)
• Redis (caching, rate limiting, job coordination)

AI & LLM:

• Gemini 2.5 (fast, low-cost reviews)
• GPT-4 (complex PRs, high accuracy)
• Context Engine (RAG + chunking)

Integration:

• GitHub Webhooks (real-time PR events)