Supercharging Codex with JetBrains MCP at Skyscanner | OpenAI Developers

This post details the integration of OpenAI's Codex CLI with JetBrains IDEs via the Model Context Protocol (MCP) server. This integration allows Codex to access IDE context, such as analyzing files for errors and warnings using IntelliJ inspections and executing predefined run configurations (unit tests, linters, formatters). The post highlights how this provides faster feedback loops, reduces back-and-forth prompting, and leads to higher-quality suggestions by enabling Codex to leverage the same feedback mechanisms human developers use. It also includes custom agent instructions to run tests, linting, and formatting after code edits.