What makes diffray different from other AI code review tools?

diffray uses multi-agent intelligence instead of single-model AI. Multiple specialized agents work together - Security Agent, Performance Agent, Architecture Agent, and Consistency Agent - each expert in their domain. This coordinated approach reduces false positives by 87% and catches 3x more real bugs compared to traditional single-agent tools like GitHub Copilot or CodeRabbit.

How does multi-agent AI code review work?

Multi-agent AI code review deploys specialized agents that work in parallel, each focused on a specific domain: security vulnerabilities, performance bottlenecks, architectural patterns, and code consistency. Unlike single-model approaches that suffer from context dilution, each agent maintains deep expertise in its area. Research shows this approach improves bug detection by 3x while reducing noise.

Is diffray free for open source projects?

Yes, diffray is completely free forever for open source projects. We support the open source community with full access to our multi-agent code review platform, including all specialized agents, unlimited reviews, and priority support.

What programming languages does diffray support?

diffray supports all major programming languages including TypeScript, JavaScript, Python, Go, Rust, Java, C#, Ruby, PHP, and more. The multi-agent system is language-agnostic and adapts its analysis to language-specific patterns and best practices.

How does diffray integrate with GitHub?

diffray integrates seamlessly with GitHub through a GitHub App. Once installed, it automatically reviews every pull request, posting actionable comments directly on the PR. Setup takes less than 2 minutes with no configuration required. Enterprise teams can also use diffray CLI for local reviews before pushing code.

What is the difference between diffray and CodeRabbit or GitHub Copilot?

While CodeRabbit and GitHub Copilot use single-model AI that can hallucinate and produce false positives, diffray employs multi-agent intelligence where specialized agents cross-validate findings. This results in 87% fewer false positives. Additionally, diffray provides full codebase awareness, custom rule support, and agent memory that learns from your team's patterns.

Can diffray detect security vulnerabilities?

Yes, diffray's Security Agent is specifically trained to detect OWASP Top 10 vulnerabilities, injection attacks, authentication flaws, and sensitive data exposure. It analyzes code in context of your entire codebase, reducing false positives while catching real security issues that static analysis tools miss.

How much does diffray reduce code review time?

According to our customer data, teams using diffray reduce PR review time by 73% on average - from 45 minutes to 12 minutes per week. This is because diffray's multi-agent system produces 87% fewer false positives, so developers spend time on real issues instead of filtering noise.

What is the developer action rate on diffray comments?

diffray achieves a 98% developer action rate on its comments, compared to industry average of 15-20% for traditional AI code review tools. This high engagement is due to our multi-agent approach that eliminates noise and surfaces only actionable findings with confidence scores.

How does diffray handle duplicate comments?

diffray guarantees zero duplicate comments through its intelligent deduplication system. Unlike single-agent tools that often flag the same issue multiple times across a PR, diffray's agents coordinate to consolidate findings and present each issue exactly once with full context.

Does diffray store my code?

No, diffray never stores your source code. Code is processed in memory during the review and immediately discarded. We are SOC 2 compliant and your code is never used for AI training. Enterprise customers can also use our on-premise deployment option for complete data sovereignty.

How does diffray compare to GitHub Copilot code review?

While GitHub Copilot uses a single AI model for code review, diffray employs specialized multi-agent intelligence. Research shows multi-agent systems catch 3x more real bugs while producing 87% fewer false positives. diffray also provides full codebase awareness, custom rules, and agent memory - features not available in Copilot's code review.

Does diffray understand TypeScript generics?

Yes. diffray understands advanced TypeScript features including generics, conditional types, mapped types, and template literal types. It validates proper type constraints and usage.

Can diffray enforce strict TypeScript settings?

Yes. diffray validates code against strict mode requirements including strictNullChecks, noImplicitAny, and other compiler options for maximum type safety.

Does diffray check for type assertion abuse?

Yes. diffray flags unsafe type assertions (as any, as unknown), unnecessary type casts, and recommends type guards and narrowing for better type safety.

Expert TypeScript

Revue de Code IA pour TypeScript

diffray comprend TypeScript. Génériques, mode strict, type guards — revue IA pour des applications type-safe.

Node.js18+

Deno1.x

Bun1.x

NestJS10.x

tRPC10+

Conçu pour les Développeurs TypeScript

Agents IA qui comprennent le système de types de TypeScript en profondeur.

Sécurité des Types

Détecte les erreurs de types, valide les génériques et applique les patterns du mode strict.

Strict null checks
Contraintes génériques
Type narrowing

Sécurité Runtime

Trouve les problèmes que le compilateur manque mais qui causent des erreurs runtime.

Abus de type assertion
Implicit any
Casts non sécurisés

Sécurité

Détecte les vulnérabilités dans les applications TypeScript full-stack.

Validation d'entrée
Injection SQL
Prévention XSS

Performance

Identifie les problèmes de performance au niveau des types et d'optimisation de build.

Types complexes
Impact bundle
Tree shaking

Problèmes TypeScript Courants Détectés

Type assertions (as any)

Contourne la sécurité des types, erreurs runtime

Signale les casts non sécurisés, suggère des type guards

Vérifications null manquantes

Cannot read property of undefined

Valide les patterns strictNullChecks

Implicit any dans les génériques

Perte d'information de type, bugs

Applique des contraintes génériques explicites

Prédicats de type non sécurisés

Type narrowing incorrect

Valide les type guards définis par l'utilisateur

Règles Personnalisées pour la Sécurité des Types

Appliquez les standards TypeScript de votre équipe. Interdire les patterns non sécurisés, exiger des types stricts.

Interdire 'as any' et les type assertions non sécurisés
Exiger des types de retour explicites sur les exports
Appliquer les branded types pour les IDs
Valider l'utilisation des schémas Zod/io-ts

.diffray/rules/typescript.yaml

rules:
  - id: ts_no_unsafe_any
    agent: bugs
    title: No unsafe type assertions
    description: Avoid 'as any' and prefer
      type guards or unknown
    importance: 9
    match:
      file_glob:
        - '**/*.ts'
        - '**/*.tsx'
    checklist:
      - No 'as any' assertions
      - Use type guards for narrowing
      - Prefer unknown over any
    tags:
      - typescript
      - type-safety
      - strict-mode

FAQ TypeScript

Créez des Apps Type-Safe

Rejoignez les équipes TypeScript utilisant diffray pour une revue de code IA experte.

Validation mode strict

Vérification des génériques

Validation type guards

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