Codex CLI agent command center: what 0.167.0 changes when you run several agentsCodex CLI 0.167.0 adds an agent command center: one view for every running agent, unread results marked, drafts kept across backends.5 min read·systemdesignsimple.hashnode.dev2d ago
How to create an AI agent skill with one SKILL.md fileAn agent skill is one folder with a SKILL.md file. The one-line description decides when it loads. How we run 23 skills with two agents.6 min read·systemdesignsimple.hashnode.dev2d ago
Codex CLI background server: check it and turn it offSince Codex CLI 0.157.0 a session can start a background server. Three checks to see it (338 MB here) and one command to turn it off.6 min read·systemdesignsimple.hashnode.dev2d ago
Server failover: active-passive vs active-activeOur failover simulation: active-passive lost 111 requests waiting for three 1 s probes; active-active lost 1. Why, and what it costs.10 min read·systemdesignsimple.hashnode.dev1C2d ago