feat: add buildFunctionCallToolName utility for generating tool names (#6136)

src/main/utils/mcp.ts

@@ -0,0 +1,31 @@
+export function buildFunctionCallToolName(serverName: string, toolName: string) {
+  // Combine server name and tool name
+  let name = toolName
+  if (!toolName.includes(serverName.slice(0, 7))) {
+    name = `${serverName.slice(0, 7) || ''}_${toolName || ''}`
+  }
+
+  // Replace invalid characters with underscores or dashes
+  // Keep a-z, A-Z, 0-9, underscores and dashes
+  name = name.replace(/[^a-zA-Z0-9_-]/g, '_')
+
+  // Ensure name starts with a letter or underscore (for valid JavaScript identifier)
+  if (!/^[a-zA-Z]/.test(name)) {
+    name = `tool_${name}`
+  }
+
+  // Remove consecutive underscores/dashes (optional improvement)
+  name = name.replace(/[_-]{2,}/g, '_')
+
+  // Truncate to 63 characters maximum
+  if (name.length > 63) {
+    name = name.slice(0, 63)
+  }
+
+  // Handle edge case: ensure we still have a valid name if truncation left invalid chars at edges
+  if (name.endsWith('_') || name.endsWith('-')) {
+    name = name.slice(0, -1)
+  }
+
+  return name
+}