patch-creation

# Patch Creation & Registration ## Overview Patches are code modifications applied to Claude Code's `cli.js` (or native binary). Each patch finds specific patterns in the minified code and replaces/injects new behavior. ## Creating a New Patch ### 1. Create the patch file Create `src/patches/myPatch.ts`: ````typescript // Please see the note about writing patches in ./index import { showDiff } from './index'; /** * Description of what this patch does. * * CC X.Y.Z: * ```diff * // Show before/after of the code change * -oldCode * +newCode * ``` */ export const writeMyPatch = ( file: string, configValue: string // Add parameters as needed ): string | null => { // Pattern to find in minified code // IMPORTANT: Use [$\w]+ for identifiers (not \w+) because $ is valid in JS identifiers // IMPORTANT: Start patterns with a boundary char (,;}{) for HIGH performance (e.g. 1.5s -> 30ms) const pattern = /,somePattern([$\w]+)/; const match = file.match(pattern); if (!match || match.index === undefined) { console.error('patch: myPatch: failed to find pattern'); return null; } const replacement = `,newCode${match[1]}`; const startIndex = match.index; const endIndex = startIndex + match[0].length; const newFile = file.slice(0, startIndex) + replacement + file.slice(endIndex); showDiff(file, newFile, replacement, startIndex, endIndex); return newFile; }; ```` ### 2. Add config type (if patch is configurable) Edit `src/types....