What problem does it solve? Long-running autonomous Codex runs fail when prompts are vague, lack stop conditions, or drift without verification. This Skill turns a task into a precise /goal contract so Codex can loop plan-act-test-review until a verifiable condition is met. ## Core Features & Use Cases - 4-Part Goal Contract: Structures every goal with an objective, constraints, an exact validation command, and a verifiable stop condition. - One-Paragraph Goal Drafting: Produces dense, ready-to-paste /goal instructions with templates for migrations, coverage lifts, and TDD builds. - Lifecycle Operations: Covers launching in the Codex TUI, pausing, resuming, replacing drifting goals, and troubleshooting common failures. - Use Case: You want Codex to migrate a project from Pydantic v1 to v2 overnight. Use this Skill to draft a goal that pins the validation command (pytest -q), forbids public API changes, and stops when the suite passes with zero deprecation warnings. ## Quick Start Ask the assistant to write a one-paragraph Codex /goal instruction for your task, including the validation command and stop condition.