Function wrapToolExecute

src/core/mcp-export.ts:115–133

(tool: Tool)

 * Adds try/catch error handling and toolCallId generation.
 */
export function wrapToolExecute(tool: Tool): (args: any) => Promise<McpToolResult> {
  return async (args: any) => {
    try {
      const result = await tool.execute!(args, {
        toolCallId: crypto.randomUUID(),
        messages: [],
      })
      return { content: toMcpContent(result) }
    } catch (err) {
      // err.message, not `${err}` — a thrown Error stringifies to "Error: <msg>",
      // which the `Error: ` prefix then doubled into "Error: Error: <msg>".
      const message = err instanceof Error ? err.message : String(err)
      return {
        content: [{ type: 'text' as const, text: `Error: ${message}` }],
        isError: true,
      }
    }
  }
}