Reference for agents authoring or revising prompt text — agent skill definitions (SKILL.md), standalone system prompts, embedded subagent templates, and tool description fields. Organized around eight evaluator lenses; each section maps to a lens prefix (SI, IC, LIR, AE, TS, OC, SCL, TDQ) used in review findings.
Targets: Claude Opus 4.7 behavioral defaults. Applies to 4.x-family unless noted otherwise.