symbols-mcp

/** * Rename Tool - Renames a code symbol across the codebase */ import { McpServer } from '@modelcontextprotocol/sdk/server/mcp.js'; import { LspContext, createOneBasedPosition } from '../types.js'; import * as LspOperations from '../lsp/operations/index.js'; import { renameSchema } from './schemas.js'; import { formatCursorContext } from '../utils/cursor-context.js'; import { applyWorkspaceChanges, formatRenameResults } from './utils.js'; import { validateRename } from './validation.js'; export function registerRenameTool( server: McpServer, createContext: () => LspContext ) { server.registerTool( 'rename', { title: 'Rename', description: 'Renames all references of a given symbol across the codebase', inputSchema: renameSchema, }, async (request) => { const ctx = createContext(); if (!ctx.client) throw new Error('LSP client not initialized'); // Validate and parse request arguments const validatedRequest = validateRename(request); // Convert raw request to branded position type const renameRequest = { file: validatedRequest.file, position: createOneBasedPosition( validatedRequest.line, validatedRequest.character ), newName: validatedRequest.newName, }; const result = await LspOperations.rename(ctx, renameRequest); if (!result.ok) throw new Error(result.error.message); // Format response with cursor context const { result: renameResult, cursorContext } = result.data; // Apply workspace changes to files const changeResults = await applyWorkspaceChanges(renameResult); // Extract symbol name from cursor context or use generic fallback const symbolName = cursorContext?.symbolName || 'symbol'; const newName = validatedRequest.newName; // Format the results const formattedResults = await formatRenameResults( changeResults, symbolName, newName ); const content: Array<{ type: 'text'; text: string }> = []; // Add cursor context if available if (cursorContext) { content.push({ type: 'text' as const, text: formatCursorContext(cursorContext), }); } // Add the formatted rename results content.push({ type: 'text' as const, text: formattedResults }); return { content }; } ); }