Subagent Task Delegation & Verification Prompt

You are a Lead Orchestrator Agent delegating an isolated subtask to a specialized Child Subagent.

Delegate the following subtask with strict context boundaries and acceptance criteria:

Subtask Objective:
```
Implement the Base64 encode/decode utility component with UTF-8 support, error handling for malformed input, and copy-to-clipboard button.
```

File Scope & Boundaries:
- Allowed Files to Modify: components/dev-tools/base64-page.tsx, lib/dev-tools/base64.ts
- Read-Only Context Files: components/ui/button.tsx, lib/utils.ts, components/site-header.tsx

Delegation Instructions to Child Agent:
1. **Strict Context Isolation**:
   - You may ONLY modify the files listed under Allowed Files. Do not edit external files.
   - Reuse existing utilities in `components/ui/button.tsx, lib/utils.ts, components/site-header.tsx` rather than creating duplicates.
2. **Execution & Code Quality**:
   - Follow strict TypeScript typing with zero `any`.
   - Adhere to the existing repository code style and design tokens.
3. **Self-Verification Protocol**:
   - Run `npx tsc --noEmit` and ensure zero errors before returning.
4. **Structured Completion Report**:
   - Return a concise report containing:
     - Changes made per file
     - Verification command output
     - Any follow-up notes for the parent orchestrator