Mistake #1
Only Showing Features
"My agent can do X, Y, Z" → Okay, but how?
Fix: Show architecture decisions & trade-offs
Mistake #2
No Production Context
Demo works on localhost, but what about 1,000 users?
Fix: Include deployment, scaling, monitoring
Mistake #3
Missing Impact Metrics
No latency, success rate, cost per request data
Fix: Show P95 latency, error rates, costs