OpenAI Codex 0.143–0.144: Remote Plugins GA, Bedrock GPT-5.6, MCP Tool Search Default-On
OpenAI
Three releases over July 8–9. Codex 0.143.0 enabled remote plugins by default with richer catalog displays, added system proxy routing on macOS and Windows, introduced a 'codex remote-control pair' command for manual pairing codes, added Amazon Bedrock GPT-5.6 models with reasoning support, and turned MCP tool search on by default. Codex 0.144.0 added usage-limit reset credits, a new 'writes' app-approval mode for controlled read-only operations, allowed MCP tools to request interactive authentication without experimental opt-in, and let app-server hosts provide Codex authentication at runtime. Codex 0.144.1 patched standalone install bugs and added a fallback to embedded runtime.
Why it matters
Enabling remote plugins and MCP tool search by default significantly lowers the configuration barrier for teams integrating external tooling; Bedrock GPT-5.6 adds a new hosted inference path for enterprise AWS customers.
Importance: 3/5
Multiple significant features across 3 releases: remote plugins GA, Bedrock GPT-5.6, MCP search on by default