Codex Retrospective

A structured self-improvement loop for Codex.

This skill turns Codex from a one-off collaborator into a system that gets meaningfully better at working with you over time by systematically eating its own usage history.

Why This Exists

Most people improve their agent usage by manually maintaining AGENTS.md or skills when they notice problems. This skill makes that process deliberate, regular, and high-leverage.

It is directly inspired by strong practices from heavy users (especially Greg Brockman's emphasis on updating the "constitution" from real failures and friction), but executed as a repeatable arsenal-style workflow.

Core Principle

Minimal effective change, grounded in evidence from actual history.