do I need to store prompts for debugging?

Often, yes — but selectively.

Why store prompts?

Storing prompts can help you:

• Debug bad outputs: see exactly what the model saw.
• Reproduce issues: compare prompt/version changes over time.
• Audit behavior: important for compliance and safety review.
• Measure quality: correlate prompt patterns with success/failure.

But be careful

Prompts may contain:

• PII or sensitive user data
• Secrets like API keys, tokens, internal URLs
• Proprietary business info

So you usually should not store raw prompts blindly.

Good practice

A safer approach is to store:

• Prompt templates / versions
• Inputs after redaction or minimization
• Metadata: timestamp, model, parameters, user/session ID, latency, output, error traces
• Hashes or fingerprints for deduplication
• Opt-in full logs only for specific debug sessions

Practical recommendation

For most systems:

1. Store prompt templates in version control.
2. Log actual prompts only in debug mode or for sampled requests.
3. Redact sensitive fields before logging.
4. Set retention limits and access controls.
5. Document what you store for privacy/compliance.

Rule of thumb

• If you’re building a prototype: yes, log prompts for a short time.
• If you’re in production: log minimally, redact aggressively, and keep versions.

If you want, I can suggest a safe prompt logging schema or a redaction policy.