'codex' exec -m 'gpt-5.5' --dangerously-bypass-approvals-and-sandbox --cd repository -c 'model_reasoning_effort="xhigh"' -c 'plan_mode_reasoning_effort="xhigh"' -c 'web_search="live"' --ephemeral --output-last-message '/workspace/PLAN.md' --json --ignore-user-config --disable apps - < '/workspace/planning-prompt.md'