Building the Agent Is Only Half the Job
A functioning workflow does not establish that an agent is reliable. Tina presents evaluations as the mechanism for comparing actual outputs with expected behavior, measuring failures, and iteratively improving prompts instead of relying on subjective impressions.
- Define successful behavior before judging the agent.
- Create test inputs with expected outputs.
- Measure both failure types and failure rates.
- Use evaluation results to refine prompts.
- Starting with five evaluations is better than having none.
“So that's why evaluations is like the other 50%.”
“Otherwise, you're kind of just guessing.”