Part 5: Agent Evals — Automated Benchmarking & Trajectory Validation

Answer-first: Production agent evaluation frameworks eliminate silent regressions from upstream model weight updates by implementing a four-tiered testing hierarchy: deterministic unit assertions, tool schema validation, position-swapped LLM judges calibrated against human experts using Cohen’s Kappa, and SWE-bench sandbox execution to mathematically score reasoning trajectory fidelity and guarantee backward-compatible task completion across enterprise CI/CD release pipelines. Prerequisite: Strong foundation in statistical hypothesis testing, inter-rater reliability metrics (Cohen’s Kappa), CI/CD automated test harness design, and synthetic dataset generation methodologies is recommended. ...