OpenAI has integrated a skills feature into both ChatGPT and the Codex CLI, allowing users to create and utilize skills with minimal setup. A skill consists of a folder containing a Markdown file, and potentially other resources. For ChatGPT, users can access a new skills directory via the Code Interpreter, which currently supports handling spreadsheets, documents, and PDFs. The approach for PDFs involves converting them to PNG images to preserve layout and graphics during processing. This is a shift from traditional text extraction methods, enhancing the quality of the output. In the Codex CLI, the skills feature became available in a recent update, with users able to create skills by simply placing folders in the designated skills directory. The documentation indicates that any folder here can function as a skill. An example is provided where a user created a Datasette plugin skill, demonstrating the ease of use. By running Codex with the skills option enabled, users can efficiently generate plugins or other components based on their prompts. The overall integration of skills into these tools reflects OpenAI's commitment to enhancing user functionality and flexibility in their applications.