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AI Agent Evaluation & Testing Framework Spec

How to test agentic systems pre-production, eval metrics, regression testing for prompt and model changes, staging vs production guardrails.

Rinku Diwakar, Senior AI EngineerTarget: QA Engineering Leads, MLOps Engineers & AI Developers10 min read
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Table of Contents & Section Overview

14 Pages Total
01.

Why Traditional Unit Testing Fails for AI

Evaluating non-deterministic software outputs.

02.

Constructing Synthetic Test Benchmark Suites

Generating edge-case datasets with ground-truth labels.

03.

LLM-as-a-Judge Evaluation Metrics

Scoring correctness, faithfulness, and tool selection precision.

04.

Automated CI/CD Regression Gates

Blocking model or prompt pushes that drop evaluation scores.

05.

Appendix: Eval Metric Formulas

Mathematical definitions for precision, recall, and context relevancy.

Problem Statement

"Updating a system prompt or upgrading an underlying LLM version can silently degrade agent performance on previously working edge cases unless automated evaluation gates are integrated into CI/CD pipelines."

Section 3 Excerpt: Automated CI/CD Regression Testing Gates

Incorporate a 100-case evaluation benchmark in GitHub Actions / CI pipelines. Before merging changes to prompts or agent code, execute the benchmark against a candidate model endpoint.

Set strict deployment blocking thresholds: reject PRs if Faithfulness drops below 0.92 or Tool Selection Precision drops below 0.98.

Evaluation Metrics Overview

MetricTarget ScorePrimary GoalEvaluation Method
Tool Selection Precision>0.98Ensure Correct APIs CalledExact Match / Schema
Response Faithfulness>0.92Prevent Hallucinated FactsLLM-as-a-Judge (DeBERTa)
Context Relevancy>0.88Eliminate Prompt BloatCross-Encoder Rank

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