A reference document covering the tools and skills of the ChatGPT Work environment was posted to the Hacker News front page. This snapshot reportedly includes 232 tool interfaces and 44 main skill files.
ChatGPT Work Tool and Skill Reference Posted to Hacker News, Including 232 Tools and 44 Skills
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Tools are defined as callable endpoints, while skills are defined as reusable instruction packages that guide the use of those tools. The skill pages contain the full text of the current SKILL.md source, and the tool references maintain the public descriptions and TypeScript type declarations.
Tools are categorized into 223 registry tools and 9 direct session controls, grouped by purposes such as execution, file system editing, process control, planning, and local inspection.
Specific tools mentioned include apply_patch (FREEFORM type) for file editing, exec_command for executing commands via PTY to return output or a session ID, functions.exec for executing JavaScript on a V8 isolate to orchestrate tool calls, and functions.request_user_input for receiving user input via one to three questions.
It is noted that availability may vary depending on session settings, permissions, connected apps, and installed plugins.
Source: ChatGPT Work Tool and Skill Reference (Hacker News Frontpage, 2026-08-31)