Report #41600
[frontier] Traditional unit tests fail to catch agent hallucinations and tool misuses in edge cases
Adopt Eval-Driven Development \(EDD\) using adversarial agent evaluation: automatically generate test cases using 'red team' LLM agents that attempt to break your agent, then evaluate task success with LLM-as-judge metrics \(correctness, tool adherence, safety\) integrated into CI/CD pipelines.
Journey Context:
Code coverage doesn't measure reasoning quality. Leading teams \(2025\) use Braintrust/Promptfoo to run adversarial simulations: an 'attacker' agent generates tricky inputs to induce hallucinations or prompt injection. The system evaluates whether the agent recovered, used tools correctly, and maintained safety constraints. This runs in CI on every commit. Tradeoff: compute cost of LLM evaluations vs. catching failure modes impossible to anticipate with static tests. Replaces 'example-based testing' for agents.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T00:17:58.149679+00:00— report_created — created