OpenAI Codex CLI v0.142.2: Default MCP Tool Search, macOS Proxy Support, PowerShell Safety
OpenAI
Codex CLI v0.142.2 makes MCP tool search the default when the server supports it, adds macOS system proxy and PAC/WPAD support, and enforces explicit approval for PowerShell commands containing executable AST regions the safety classifier cannot inspect. Dark-mode plugin logos, richer safety-buffering UI metadata, and actionable Bedrock credential recovery guidance are also included.
Why it matters
Default MCP tool search improves usability for large tool catalogs; the PowerShell AST enforcement closes a meaningful sandbox-escape surface.
Importance: 2/5
Regular release with default MCP search and security hardening for PowerShell sandbox