Codex PR Review Loop

Overview

Run a 5-minute polling loop for PR review threads, but enforce a preflight Codex Context gate and capture post-merge learning when Codex churn occurs.

Workflow (Preflight + Loop + Post-Merge)

Preconditions

1. If the user asks for preflight, run Step -1 before PR submission.
2. If PR already exists, proceed to Step 0.
3. gh is authenticated.
4. You are allowed to push/merge as part of this explicit user-requested workflow.

Step -1: Pre-PR Codex Readiness (only when requested)