Start with working AGENTS.md setups, reusable workflow baselines, and one-command Claude-to-Codex migration paths.
A migration sprint broke on day one because half the team had `.claude` assets and the other half had `.codex` assets. We were copying by hand and introducing subtle drift in perm…
The first Codex week at FRE|Nxt had one repeated failure mode: each thread started with good intent, then drifted because project guardrails were implicit.