Codex execution plans (ExecPlans)

This skill describes how to author, discuss, and implement an execution plan ("ExecPlan"). An ExecPlan is a living design-and-delivery document that a coding agent (or human) can follow to ship a demonstrably working change.

Treat the reader as a complete beginner to this repository. Assume they have:

• only the current working tree,
• only the single ExecPlan file you provide,
• no memory of prior plans,
• no external context.

The bar is high: the ExecPlan must be self-contained and sufficient for end-to-end delivery, including validation and observable behaviour.

When to use this skill

Use this skill when: