diff --git a/packages/tools/src/vercel/util.ts b/packages/tools/src/vercel/util.ts
index 6fc8df03..49ab30c5 100644
--- a/packages/tools/src/vercel/util.ts
+++ b/packages/tools/src/vercel/util.ts
@@ -9,6 +9,12 @@ import type {
 	LanguageModelV3StreamPart,
 } from "@ai-sdk/provider"
 
+// Re-export shared types for backward compatibility
+export type {
+	ProfileStructure,
+	ProfileMarkdownData,
+} from "../shared"
+
 // Union types for dual SDK version support (V2 = SDK 5, V3 = SDK 6)
 export type LanguageModel = LanguageModelV2 | LanguageModelV3
 export type LanguageModelCallOptions =
@@ -21,26 +27,6 @@ export type LanguageModelStreamPart =
 	| LanguageModelV2StreamPart
 	| LanguageModelV3StreamPart
 
-export interface ProfileStructure {
-	profile: {
-		static?: Array<{ memory: string; metadata?: Record<string, unknown> }>
-		dynamic?: Array<{ memory: string; metadata?: Record<string, unknown> }>
-	}
-	searchResults: {
-		results: Array<{ memory: string; metadata?: Record<string, unknown> }>
-	}
-}
-
-export interface ProfileMarkdownData {
-	profile: {
-		static?: string[]
-		dynamic?: string[]
-	}
-	searchResults: {
-		results: Array<{ memory: string }>
-	}
-}
-
 export type OutputContentItem =
 	| { type: "text"; text: string }
 	| { type: "reasoning"; text: string }
@@ -58,46 +44,32 @@ export type OutputContentItem =
 			title: string
 	  }
 
-/**
- * Convert profile data to markdown format
- * @param data Profile data with string arrays for static and dynamic memories
- * @returns Markdown string with profile sections
- */
-export function convertProfileToMarkdown(data: ProfileMarkdownData): string {
-	const sections: string[] = []
+// Re-export convertProfileToMarkdown from shared for backward compatibility
+export { convertProfileToMarkdown } from "../shared"
 
-	if (data.profile.static && data.profile.static.length > 0) {
-		sections.push("## Static Profile")
-		sections.push(data.profile.static.map((item) => `- ${item}`).join("\n"))
-	}
-
-	if (data.profile.dynamic && data.profile.dynamic.length > 0) {
-		sections.push("## Dynamic Profile")
-		sections.push(data.profile.dynamic.map((item) => `- ${item}`).join("\n"))
-	}
-
-	return sections.join("\n\n")
-}
-
-export const getLastUserMessage = (params: LanguageModelCallOptions) => {
+export const getLastUserMessage = (
+	params: LanguageModelCallOptions,
+): string | undefined => {
 	const lastUserMessage = params.prompt
 		.slice()
 		.reverse()
 		.find((prompt: LanguageModelMessage) => prompt.role === "user")
 
-	const content = lastUserMessage?.content
-	if (!content) return undefined
+	if (!lastUserMessage) {
+		return undefined
+	}
 
-	// Handle string content (allowed by Vercel AI SDK)
+	const content = lastUserMessage.content
+
+	// Handle string content directly
 	if (typeof content === "string") {
 		return content
 	}
 
-	// Handle array content
-	// biome-ignore lint/suspicious/noExplicitAny: Union type compatibility between V2 and V3
-	return (content as any[])
+	// Handle array content - extract text parts
+	return content
 		.filter((part) => part.type === "text")
-		.map((part) => part.text || "")
+		.map((part) => (part as { type: "text"; text: string }).text)
 		.join(" ")
 }