Claude Code skill: dual-codex premortem review of plans (gpt-5.5 + gpt-5.4 xhigh, in parallel, until they converge)
KamakuraCrypto/claude-codex-review
Skill Codex
Use when Claude has written a plan and the user wants codex to premortem it — by default runs gpt-5.5 and gpt-5.4 at xhigh reasoning in parallel, iterates until both converge. Also supports single-shot codex runs, resume, and edit/network sandboxes as escape hatches.
KamakuraCrypto/claude-codex-review
Skill Codex
Use when Claude has written a plan and the user wants codex to verify it against the actual codebase — runs gpt-5.5 and gpt-5.4 at xhigh reasoning in parallel with full shell access, iterates until both converge. Strict prompt-level prohibition on destructive operations. Prefer /codex-review for fast, deterministic…