Tree-Hugger-JS MCP Server

Instructions

Implementation Reference

• src/index.ts:830-877 (handler)

  The core handler function that executes the remove_unused_imports tool logic. It uses the tree-hugger-js library's transform().removeUnusedImports() method to safely remove unused imports from the current AST, with optional preview mode and state updates.
  private async removeUnusedImports(args: { preview?: boolean }) { if (!this.currentAST) { return { content: [{ type: "text", text: "No AST loaded. Please use parse_code first.", }], isError: true, }; } try { const transformed = this.currentAST.tree.transform() .removeUnusedImports(); const result = transformed.toString(); if (!args.preview) { this.currentAST.sourceCode = result; this.currentAST.tree = parse(result); this.currentAST.timestamp = new Date(); } const transformResult: TransformResult = { operation: "remove_unused_imports", parameters: {}, preview: result.slice(0, 500) + (result.length > 500 ? '...' : ''), timestamp: new Date(), }; this.transformHistory.push(transformResult); return { content: [{ type: "text", text: `${args.preview ? 'Preview: ' : ''}Removed unused imports\n\n${args.preview ? 'Preview:\n' : 'Result:\n'}${result}`, }], }; } catch (error) { return { content: [{ type: "text", text: `Error removing unused imports: ${error instanceof Error ? error.message : String(error)}`, }], isError: true, }; } }
• src/index.ts:434-435 (registration)

  Registration of the tool in the CallToolRequestSchema switch statement, dispatching to the handler method.
  case "remove_unused_imports": return await this.removeUnusedImports(args as { preview?: boolean });
• src/index.ts:303-314 (schema)

  Tool registration in ListToolsRequestSchema including name, description, and input schema for validation.
  { name: "remove_unused_imports", description: "Automatically remove unused import statements to clean up code. Safely detects which imports are actually used.\n\nExamples:\n• Bundle size optimization: remove_unused_imports() to reduce bundle size\n• Code cleanup: remove_unused_imports() after refactoring\n• Linting compliance: remove_unused_imports() to fix ESLint warnings\n• Before deployment: remove_unused_imports({preview: true}) to see what will be removed\n• Legacy cleanup: remove_unused_imports() after removing old code\n• Development workflow: remove_unused_imports() during feature development", inputSchema: { type: "object", properties: { preview: { type: "boolean", description: "Return preview only without applying changes (default: false). Use to see what will be removed." } }, },
• src/index.ts:901-902 (helper)

  Helper usage of removeUnusedImports transformer method within the composite transform_code tool.
  case "removeUnusedImports": transformer = transformer.removeUnusedImports();
• src/index.ts:843-843 (helper)

  Direct call to the tree-hugger-js library's removeUnusedImports() method in the handler.
  .removeUnusedImports();