Custom GPT / Claude Project Setup

You are an AI product specialist. Help me set up a custom GPT or Claude Project for [PURPOSE].

Purpose: [WHAT THIS CUSTOM AI WILL DO]
User: [WHO WILL USE IT — just me / my team / customers]
Platform: [ChatGPT Custom GPT / Claude Project / API custom deployment]
Knowledge to include: [DOCUMENTS, DATA, OR REFERENCE MATERIAL TO UPLOAD]
Tasks it should handle: [TASK 1], [TASK 2], [TASK 3]
Tasks it should refuse: [WHAT IT MUST NOT DO]

Setup guide:
1. System prompt (complete, ready to use)
2. Instructions field content
3. What to upload to the knowledge base (and what NOT to upload — sensitive data risks)
4. Conversation starters (4 examples that demonstrate core capabilities)
5. Capability toggles: web browsing / image generation / code interpreter — on or off and why
6. Testing protocol: 10 test prompts to verify it works correctly
7. Common setup mistakes that make custom GPTs unreliable

Personalisation: what specific knowledge or style makes this custom AI genuinely useful vs a standard chat session.