Supported Technologies

diffray provides built-in rules across languages, frameworks, and infrastructure tools. Rules are automatically applied based on what files changed in your PR.

Languages

TypeScript

JavaScript

Python

C#

Java

Go

Ruby

Kotlin

Rust

Swift

PHP

Dart

Scala

C/C++

Shell/Bash

Frontend Frameworks

React

Next.js

Vue.js

Angular

Svelte

CSS

Backend Frameworks

Node.js

NestJS

Express

Django

FastAPI

Flask

Spring

Rails

ASP.NET Core

Infrastructure & DevOps

Docker

Kubernetes

Terraform

GitHub Actions

Data & APIs

GraphQL

Protobuf/gRPC

Testing

Jest

Mocha

Vitest

Blockchain

Solidity

CMS

WordPress

Custom Rules

Don't see a check you need? Add project-specific rules for your team's patterns:

# .diffray/rules/team-standards.yaml
rules:
  - id: use_internal_logger
    agent: quality
    title: "Use internal logger"
    tags: [logging, conventions]
    match:
      file_glob: ["src/**/*.ts"]
    checklist:
      - "Find console.log calls"
      - "Suggest using logger from @/lib/logger"

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Don't see your technology? That doesn't mean diffray can't review it — it just may not know some specific patterns or best practices for that stack. We're constantly expanding coverage. Let us know what you'd like to see supported!