See Overwrite in Action
Watch a two-minute guided tour of Overwrite’s structured AI workflows in action
Simple 4-Step Workflow
A better way to code with AI – fast, focused and effective.
Step 1: Select & Copy
Select & Copy
Pick your files, add a short brief, and copy a clean XML prompt – ready for any model.
What Can You Build With Overwrite?
Turn complex coding tasks into simple conversations.
QA & Code Review
Find security issues and code problems instantly
The Problem
Manual code review misses vulnerabilities across multiple files.
Overwrite Solution
AI finds security issues, weak patterns, and suggests fixes.
1Select Relevant Files
Selected files for: Security audit of authentication system
src/auth/login.ts
src/auth/middleware.ts
src/models/user.ts
src/routes/auth.ts
src/config/security.ts
2User Instruction
Find security vulnerabilities in this auth system. Check for SQL injection, XSS, weak passwords, and session issues.
3AI Analysis & Results
Security Analysis Report
🚨 CRITICAL: SQL Injection Risk in login.ts:23
❌ Direct string interpolation in user query
✅ Fix: Use parameterized queries
⚠️ HIGH: Weak session configuration
❌ Missing httpOnly and secure flags
✅ Fix: Update session middleware
✅ GOOD: Password hashing implemented correctly
✅ GOOD: Input validation on registration
✅ GOOD: Rate limiting configured
📋 RECOMMENDATIONS:
• Implement CSRF protection
• Add request ID logging
• Consider 2FA implementation
OPX: The XML Protocol That Powers Everything
Overwrite uses OPX (Overwrite Patch XML) to describe precise file operations. From creating new files to complex code patches, OPX makes AI-driven development predictable and reliable.
Create Files
Create a new utility module for string operations
1Before
File does not exist
File does not exist
2After
src/utils/strings.ts
export function titleCase(s: string): string {
return s.split(/\s+/).map(w => (
w ? w[0]!.toUpperCase() + w.slice(1) : w
)).join(' ');
}
export function kebabCase(s: string): string {
return s.toLowerCase().replace(/\s+/g, '-');
}3OPX Command
<edit file="src/utils/strings.ts" op="new">
<why>Create a string utilities module</why>
<put>
<<<
export function titleCase(s: string): string {
return s.split(/\s+/).map(w => (
w ? w[0]!.toUpperCase() + w.slice(1) : w
)).join(' ');
}
export function kebabCase(s: string): string {
return s.toLowerCase().replace(/\s+/g, '-');
}
>>>
</put>
</edit>Creates a brand new file with the specified content.
Precise Control
Target exact code blocks with surgical precision. No guesswork, no broken code.
Safe Operations
Preview changes before applying. Built-in safety checks and undo support.
Universal Format
Works with any AI model. Standardized XML format ensures consistency.
Try Overwrite now
Every great change begins with a good prompt