PatchBack AI

Zero-Friction AI Code Patch Inserter for VS Code

Developed by KiranLabs

Stop manually stitching partial AI code responses back into your project. PatchBack AI intelligently detects target functions, strips out // ... existing code ... filler lines, aligns indentation, and replaces the exact block with 1 click.

🌟 Why PatchBack AI?

When asking ChatGPT, Claude, DeepSeek, or Gemini to edit or refactor a function, the model almost always replies with a partial snippet:

// ... existing code ...
function calculateDiscount(user, cartTotal) {
  if (user.isVip) return cartTotal * 0.20;
  return cartTotal * 0.05;
}
// ... rest of the code remains the same ...

The Pain:

You have to manually scroll through 500 lines to find calculateDiscount.
You have to carefully select from the opening brace { to the closing brace } without deleting neighboring methods.
You have to fix indentation that got mangled during copy-pasting.

The PatchBack AI Solution:

Copy the AI's response (Ctrl + C).
Press Alt + V (or Right-Click -> PatchBack AI: Apply AI Patch).
PatchBack AI instantly:
- Strips markdown fences (javascript ... ).
- Removes AI filler comments (// ... existing code ...).
- Identifies the target function name (calculateDiscount).
- Finds its exact start and end line in your file.
- Preserves your indentation and cleanly replaces only that function!

🚀 Key Features

⚡ 1-Shortcut Patch (Alt + V): Instantly injects AI code without touching the mouse.
🧹 Automatic Noise Stripping: Strips markdown backticks and lazy AI filler comments (// ... existing code ..., # ... existing code ..., /* ... */).
🔍 AST & Signature Matching: Intelligently identifies functions, async functions, arrow functions, classes, and methods across JavaScript, TypeScript, Python, and more.
🪟 Side-by-Side Diff Preview: Preview changes in VS Code's native diff editor before applying.
🛡️ Safe & Reversible: Fully integrated with VS Code's undo stack—press Ctrl + Z anytime to revert.

⌨️ Shortcuts & Commands

Shortcut	Command	Action
`Alt + V`	`patchBack.applyFromClipboard`	Apply AI patch from clipboard to active file
—	`patchBack.previewDiff`	Preview side-by-side diff against clipboard patch
—	`patchBack.cleanClipboard`	Clean markdown fences and filler comments from clipboard

⚙️ Settings

Configure preferences in VS Code Settings (Ctrl + , -> search PatchBack AI):

Setting	Default	Description
`patchBack.confirmBeforeApply`	`true`	Show confirmation prompt showing target function and lines before replacing
`patchBack.autoFormatAfterPatch`	`false`	Automatically trigger document formatting after patching

📦 About KiranLabs

KiranLabs builds developer tooling to make programming with AI fast, seamless, and reliable.

📄 License

MIT License. Free to use, modify, and distribute.

PatchBack AI: Zero-Friction AI Code Patch Inserter

KiranLabs