✅ Share
- System and table names
- Column names and types
- Business definitions and rules
- Expected output shape (columns, types, grain)
- Row counts and freshness ranges
- Sample formats (values optional or obviously fake)
🚫 Do not share
- Customer data (PII/PHI), API keys, secrets, credentials
- Proprietary policy documents verbatim (summarize and cite sections instead)
Tips
- Replace real company names with roles (e.g., "Top-3 telecom")
- If in doubt, generalize (e.g., “20–30M rows/day”)