OpenAI Codex April Update: First-Class Plugins, Multi-Agent v2 with Path-Based Addressing, and Dynamic Bearer Tokens

OpenAI Developers·medium signal

Codex CLI shipped several significant updates in April 2026: plugins are now a first-class workflow with startup sync, /plugins browser, and auth handling; sub-agents use readable path-based addresses (/root/agent_a) with structured inter-agent messaging for multi-agent v2; Windows sandbox now enforces OS-level egress rules; and custom model providers can dynamically refresh short-lived bearer tokens. Also added ChatGPT device-code sign-in and prompt-plus-stdin for 'codex exec'. Plugin ecosystem maturation closes a gap versus Claude Code's skills system.