Migrate Claude Code Config to OpenAI Codex in One Command
The article introduces a CLI tool called claude2codex that automates the migration of Claude Code configurations to OpenAI Codex, helping teams running both platforms to easily switch to Codex while preserving their existing settings.
Why it matters
The claude2codex tool helps teams using both Claude Code and OpenAI Codex to easily transition to Codex while preserving their existing configurations, reducing the effort and friction involved in the migration process.
Key Points
- 1The tool migrates various Claude Code settings and configurations to their Codex equivalents, including config files, prompts, and MCP server registrations.
- 2It provides a dry-run mode to preview the migration before executing it, and flags any unsupported features for manual adjustment.
- 3The tool has been used by the author's team to migrate nine members' setups, with 95% of the settings working on the first try in Codex.
Details
The article discusses the motivation behind developing the claude2codex tool - the author's team was paying a significant monthly cost for Claude Code Max, but was looking to leverage the cost advantages of Codex for simpler workloads, while still maintaining the capabilities of Claude Code for tasks requiring stronger reasoning or long-term planning. The tool automates the migration process, which the author found to be tedious and error-prone when done manually, as the various configuration files and settings were spread across different locations and formats. The tool is open-sourced and MIT licensed, and the author's team has found it to be effective in their hybrid usage of Claude Code and Codex, with the majority of settings successfully migrating with minimal manual intervention.
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