Claude Code skill: four-phase plan hardening (recon, interrogate, Codex adversarial review, cross-model build & inspection) — two AI models harden your plan before a line of code exists, then swap jobs to build it. Whoever built it never grades it.
Skill Claude CodeCodex
Part of claudex-loop
SUPERSEDED by /claudex-loop (formerly /crucible; adds a Phase 0 research/recon pass + rebuilt interview) — prefer that skill unless you explicitly want this one. Two-act plan hardening. ACT 1 (you ↔ Claude) — Claude interviews you relentlessly about a plan or design, one question at a time, recommending an answer for…
Skill Claude CodeCodex
Part of claudex-loop
SUPERSEDED by /claudex-loop (formerly /crucible; its docs-aware mode covers this variant) — prefer that skill unless you explicitly want this one. Two-act plan hardening with living documentation. ACT 1 (you ↔ Claude) — Claude interviews you relentlessly about a plan, one question at a time, challenging it against…
Skill Claude CodeCodex
Part of claudex-loop
Four-phase plan hardening (renamed from /crucible 2026-08-16; old triggers still work) — supersedes /grill-me-codex and /grill-with-docs-codex. PHASE 0 RECON — Claude scouts first (codebase + docs on brownfield; prior art, stack, and pitfalls research on greenfield) and drafts an assumptions ledger. PHASE 1…
Skill Claude CodeCodex
Part of claudex-loop
Hand a frozen spec (PLAN.md or any locked plan) to OpenAI Codex to IMPLEMENT with full write access, while Claude stays the spec-writer and reviewer — the exact role-flip of /codex-review. Codex builds from the spec in a --yolo sandbox, Claude reads the full diff like a contributor PR, runs the proof test, and…
Skill Claude CodeCodex
Part of claudex-loop
A standalone adversarial PLAN-review loop where Claude Code (builder) and OpenAI Codex (read-only critic) tag-team an implementation plan before any code is written. Use this when you ALREADY have a plan or a clear idea and just want the cross-model stress-test — no requirements interview first. Claude drafts/loads…
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