Claude quota failover to Codex for overnight plan lanes

Use when:

• you launched a large overnight planning-only wave with claude -p
• some lanes fail with You've hit your limit · resets ...
• other lanes are still healthy and should not be restarted
• each lane already has its own isolated worktree and committed prompt file

Why this exists

In the 2026-04-23 10-agent pre-plan-review wave, several Claude workers exited due to quota exhaustion while other workers were still making progress. Restarting the entire batch would have wasted work and increased git contention risk. The reliable recovery was lane-by-lane failover to Codex, reusing the exact same worktree and prompt file.

Preconditions

• each issue has its own isolated worktree
• each worktree already contains a self-contained worker prompt file
• the lane is planning-only or otherwise safe to rerun without user interaction
• Codex CLI is installed and authenticated