[BUG]

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

I'm instructing the model to use the Vercel AI SDK Prompt Input component, but it think's I'm trying to prompt injection or something against the terms of service.

`'use client';

import {
  PromptInput,
  PromptInputActionAddAttachments,
  PromptInputActionMenu,
  PromptInputActionMenuContent,
  PromptInputActionMenuTrigger,
  PromptInputAttachment,
  PromptInputAttachments,
  PromptInputBody,
  PromptInputButton,
  type PromptInputMessage,
  PromptInputModelSelect,
  PromptInputModelSelectContent,
  PromptInputModelSelectItem,
  PromptInputModelSelectTrigger,
  PromptInputModelSelectValue,
  PromptInputSubmit,
  PromptInputTextarea,
  PromptInputToolbar,
  PromptInputTools,
} from '@/components/ai-elements/prompt-input';
import { GlobeIcon, MicIcon } from 'lucide-react';
import { useState } from 'react';
import { useChat } from '@ai-sdk/react';
import {
  Conversation,
  ConversationContent,
  ConversationScrollButton,
} from '@/components/ai-elements/conversation';
import { Message, MessageContent } from '@/components/ai-elements/message';
import { Response } from '@/components/ai-elements/response';

const models = [
  { id: 'gpt-4o', name: 'GPT-4o' },
  { id: 'claude-opus-4-20250514', name: 'Claude 4 Opus' },
];

const InputDemo = () => {
  const [text, setText] = useState<string>('');
  const [model, setModel] = useState<string>(models[0].id);
  const [useMicrophone, setUseMicrophone] = useState<boolean>(false);
  const [useWebSearch, setUseWebSearch] = useState<boolean>(false);

  const { messages, status, sendMessage } = useChat();

  const handleSubmit = (message: PromptInputMessage) => {
    const hasText = Boolean(message.text);
    const hasAttachments = Boolean(message.files?.length);

    if (!(hasText || hasAttachments)) {
      return;
    }

    sendMessage(
      { 
        text: message.text || 'Sent with attachments',
        files: message.files 
      },
      {
        body: {
          model: model,
          webSearch: useWebSearch,
        },
      },
    );
    setText('');
  };

  return (
    <div className="max-w-4xl mx-auto p-6 relative size-full rounded-lg border h-[600px]">
      <div className="flex flex-col h-full">
        <Conversation>
          <ConversationContent>
            {messages.map((message) => (
              <Message from={message.role} key={message.id}>
                <MessageContent>
                  {message.parts.map((part, i) => {
                    switch (part.type) {
                      case 'text':
                        return (
                          <Response key={`${message.id}-${i}`}>
                            {part.text}
                          </Response>
                        );
                      default:
                        return null;
                    }
                  })}
                </MessageContent>
              </Message>
            ))}
          </ConversationContent>
          <ConversationScrollButton />
        </Conversation>

        <PromptInput onSubmit={handleSubmit} className="mt-4" globalDrop multiple>
          <PromptInputBody>
            <PromptInputAttachments>
              {(attachment) => <PromptInputAttachment data={attachment} />}
            </PromptInputAttachments>
            <PromptInputTextarea
              onChange={(e) => setText(e.target.value)}
              value={text}
            />
          </PromptInputBody>
          <PromptInputToolbar>
            <PromptInputTools>
              <PromptInputActionMenu>
                <PromptInputActionMenuTrigger />
                <PromptInputActionMenuContent>
                  <PromptInputActionAddAttachments />
                </PromptInputActionMenuContent>
              </PromptInputActionMenu>
              <PromptInputButton
                onClick={() => setUseMicrophone(!useMicrophone)}
                variant={useMicrophone ? 'default' : 'ghost'}
              >
                <MicIcon size={16} />
                <span className="sr-only">Microphone</span>
              </PromptInputButton>
              <PromptInputButton
                onClick={() => setUseWebSearch(!useWebSearch)}
                variant={useWebSearch ? 'default' : 'ghost'}
              >
                <GlobeIcon size={16} />
                <span>Search</span>
              </PromptInputButton>
              <PromptInputModelSelect
                onValueChange={(value) => {
                  setModel(value);
                }}
                value={model}
              >
                <PromptInputModelSelectTrigger>
                  <PromptInputModelSelectValue />
                </PromptInputModelSelectTrigger>
                <PromptInputModelSelectContent>
                  {models.map((model) => (
                    <PromptInputModelSelectItem key={model.id} value={model.id}>
                      {model.name}
                    </PromptInputModelSelectItem>
                  ))}
                </PromptInputModelSelectContent>
              </PromptInputModelSelect>
            </PromptInputTools>
            <PromptInputSubmit disabled={!text && !status} status={status} />
          </PromptInputToolbar>
        </PromptInput>
      </div>
    </div>
  );
};

export default InputDemo;`

What Should Happen?

It should read the code structure and use the component as instructed.

Error Messages/Logs

Steps to Reproduce

1. Open claude code
2. Make a prompt to use the component here: https://ai-sdk.dev/elements/components/prompt-input

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

1.0.117

Platform

Other

Operating System

macOS

Terminal/Shell

VS Code integrated terminal

Additional Information

<img width="858" height="95" alt="Image" src="https://github.com/user-attachments/assets/f15bfc95-2ac7-4332-b830-7091d0355ee5" />