Product Engineering · 8 min read
From agent demo to dependable product
A compelling loop proves possibility. Production requires the less glamorous work of states, limits, recovery, evaluation, and operations.
APP MY AGENT · August 15, 2026A demo optimizes for the happy path
A production product must explain waiting, degraded inputs, tool failure, partial completion, conflicting instructions, expired permissions, and model uncertainty. These are not edge cases once real users depend on the system.
Make state visible
Users should be able to distinguish thinking, waiting, acting, blocked, and complete. Product language, interface states, and backend events need to share the same model or the experience will feel arbitrary.
Evaluate the experience, not only the model
Model accuracy matters, but so do intervention rate, successful recovery, time to useful outcome, repeat correction, and trust-sensitive abandonment. Evaluation should connect technical behavior to user and business outcomes.
Build the operating layer
Logs, traces, policy controls, release gates, and support tools are part of the product. They let the team improve agent behavior without asking users to rediscover every failure.