Agentic Eval skill: what it does and how to install it

What it does. Provides patterns for generating, evaluating, critiquing and refining outputs in bounded loops. It covers self-reflection, evaluator-optimizer designs, code refinement through tests, rubric scoring and structured JSON evaluation, with convergence checks and iteration logging.

When to use it. For quality-critical code, reports or analysis with clear success criteria, style requirements or compliance standards. It also applies when measuring and improving agent response quality.