Worked on the openai/codex repository to improve the onboarding experience for Codex CLI users by adding a comprehensive example configuration file to the documentation. Leveraging AI-assisted development and configuration management skills, created a sample config.toml that details all configurable keys, default values, and explanations, using TOML as the primary language. Documentation artifacts were generated with GPT-5 to ensure clarity and accuracy, directly addressing common setup challenges and reducing configuration errors for new users and contributors. All changes were linked to a specific commit for traceability, reflecting a focused approach to documentation and user enablement within a short project period.