Memory and Learning

How Greptile learns from your codebase, team preferences, and feedback to provide increasingly relevant suggestions

Greptile’s memory system learns from every interaction with your team to deliver increasingly personalized and actionable code review suggestions.

How Greptile Learns From Your Team

1. Reading Team Comments on PRs

Greptile observes patterns in your team’s code review discussions:

Examples of Learning:

Team consistently comments: "Add error handling"
→ Greptile learns: Error handling is important to this team

Team often says: "This should be async"
→ Greptile learns: Team prefers async patterns

Team flags: "Move this to a service layer"
→ Greptile learns: Team follows layered architecture

2. Learning from Replies to Greptile

Your responses teach Greptile what matters:

Positive Responses

Greptile: "Consider extracting this logic into a utility function"
Developer: "Good catch! Will refactor this."
→ Greptile learns: Code organization suggestions are valued

3. Learning from Reactions

Thumbs up/down reactions provide instant feedback on suggestion quality:

Learning Nitpickiness Levels

Greptile learns your team’s tolerance for minor suggestions through commit analysis and reactions:

Commit-Based Learning

Greptile analyzes which comments get addressed by comparing first and last commits:

Adaptive Noise Filtering

High Nitpick Team (addresses style issues):

✅ Missing semicolons
✅ Import organization  
✅ Function naming
✅ Documentation gaps

Low Nitpick Team (ignores style issues):

❌ Missing semicolons (suppressed after 3 ignores)
❌ Import organization (team doesn't care)
✅ Security issues (always flagged)
✅ Logic errors (never suppressed)

Learning Thresholds

// Greptile tracks patterns like:
const learningData = {
  semicolonComments: { made: 10, addressed: 0, reactions: -3 },
  securityComments: { made: 5, addressed: 5, reactions: +4 },
  performanceComments: { made: 8, addressed: 6, reactions: +2 }
};

// Result: Stop semicolon comments, prioritize security

Impact of Learning and Memory

More Actionable Comments

Learning transforms generic suggestions into targeted, team-specific guidance:

Before Learning (Generic):

🤖 "Consider adding error handling"
🤖 "This function could be shorter"  
🤖 "Add documentation here"
🤖 "Fix indentation"

After Learning (Personalized):

🤖 "Add error handling using your team's Result<T> pattern"
🤖 "Consider breaking this into multiple domain methods (per your architecture)"
🤖 "Security validation missing - required for payment functions"

Contextual Understanding

Greptile learns when rules apply and when they don’t:

Context-Aware Rules

// Greptile learns these patterns:
class PaymentService {
  // ✅ Long functions OK in domain logic
  processComplexPayment(data: PaymentData) {
    // 50+ lines of business logic - team accepts this
  }
}

// ❌ But flags long functions in utilities
function formatString(input: string) {
  // 20+ lines here would get flagged
}

Reduced Review Fatigue

Memory eliminates noise and focuses on what matters:

Measurable Impact:

• 80% reduction in ignored comments
• 3x higher suggestion adoption rate
• Faster PR review cycles
• Focus on architecture and logic over style

Custom Rules Discovery

Greptile automatically infers custom rules from team behavior without manual configuration:

Auto-Generated Rules

From Team Comments:

Observed pattern: Team always comments "Move DB calls to service layer"
→ Auto-generated rule: "Controllers should not contain direct database calls"

Observed pattern: Team consistently requests "Add input validation"  
→ Auto-generated rule: "API endpoints require input validation"

Learning Evolution

Evolution Timeline:

• Week 1-2: Standard suggestions, high noise
• Week 3-4: Learning team preferences, filtering begins
• Week 5-8: Custom patterns emerge, suggestions improve
• Week 9+: Highly personalized, actionable recommendations

Real-World Learning Examples

Team A: Security-Focused Fintech

Learning Journey:

Month 1: Generic security suggestions ignored
Month 2: Team comments "We use our custom auth middleware"  
Month 3: Greptile learns to suggest team's auth patterns
Result: 90% suggestion adoption rate for security issues

Team B: Performance-Obsessed Gaming

Learning Journey:

Week 1: Style comments get 👎 reactions
Week 3: Performance comments get 👍 reactions
Week 6: Greptile stops style suggestions, focuses on performance
Result: Faster reviews, better performance optimization

Why Learning and Memory Matter

Eliminates Noise

Learns to filter out suggestions your team consistently ignores

Builds Context

Understands your team’s unique patterns and preferences

Improves Adoption

Higher suggestion acceptance leads to better code quality

Saves Time

Reduces back-and-forth discussions about irrelevant suggestions

The Learning Advantage

Traditional static analysis tools give the same generic suggestions to every team. Greptile’s memory system creates a personalized code review experience that:

• Adapts to your team’s coding style and preferences
• Learns from every interaction and piece of feedback
• Evolves to become more valuable over time
• Focuses on issues that actually matter to your team

The result is an AI code reviewer that feels like a knowledgeable teammate who understands your codebase, respects your decisions, and helps you write better code without the noise.