script_apply_diff
Apply unified diffs to C# scripts in Unity projects to modify code files directly through patch application.
Instructions
Apply a unified diff to a C# script
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| path | Yes | Path to the script file | |
| diff | Yes | Unified diff content to apply | |
| options | No | Optional diff application settings |
Implementation Reference
- src/tools/unity-mcp-tools.ts:366-377 (handler)Handler for script_apply_diff tool: validates input, calls adapter.applyDiff, and returns formatted success response with stats.
case 'script_apply_diff': { if (!args.path || !args.diff) { throw new Error('path and diff are required'); } const result = await this.adapter.applyDiff(args.path, args.diff, args.options); return { content: [{ type: 'text', text: `Diff applied successfully:\nPath: ${result.path}\nLines added: ${result.linesAdded}\nLines removed: ${result.linesRemoved}` }] }; } - src/tools/unity-mcp-tools.ts:113-140 (registration)Tool registration including name, description, and input schema definition for script_apply_diff.
{ name: 'script_apply_diff', description: 'Apply a unified diff to a C# script', inputSchema: { type: 'object', properties: { path: { type: 'string', description: 'Path to the script file' }, diff: { type: 'string', description: 'Unified diff content to apply' }, options: { type: 'object', description: 'Optional diff application settings', properties: { dryRun: { type: 'boolean', description: 'Preview changes without applying (default: false)' } } } }, required: ['path', 'diff'] } }, - Helper method in UnityHttpAdapter that proxies the diff application request to Unity HTTP server endpoint.
async applyDiff(path: string, diff: string, options?: any): Promise<any> { return this.call('script/applyDiff', { path, diff, options }); }