Codex

Custom instructions with AGENTS.md agents.md is read before doing any work How codex discovers guidance: The instruction chain: 1.Global scope: in your Codex directory(default~/.codex): u can also use AGENTS.override.md,but only the first non-empty AGENTS.md is read 2.Project scope: At the project root in each directory along the path,it checks for AGENTS.override.md ,then AGENTS.md,then any fallback names in project_doc_fallback_filenames. Codex includes at most one file per directory 3.Merge order: The later ,the higher : because they appear later in the prompt ...

Personalize GPT set preference and carry useful context across chats: Choose a personality: Friendly, pragmatic,or None Add custom instructions: In your global AGENTS.md Carry context forward with memories: Memories are separate from required project guidance. Keep instructions that must always apply in AGENTS.md or checked-in project documentation. Add recent activity with Computer History Review what Computer History includes before enabling it Manage personalization: pen Settings to update your personality, custom instructions, memories, and other available personalization controls. See ChatGPT desktop app settings for an overview of everyday preferences.

Skills & Plugins Helps to complete repeatable work with the right instructions,resources,and tools,They reduce the need to paste the same prompt ,template,requirements,or process into every chat. Skill: A skill packages instructions and supporting resources for a specific task or workflow. Plugin: A plugin is an installable bundle that can include skills, connectors, or both. Connectors are backed by Model Context Protocol (MCP) servers and can optionally include custom ChatGPT UI. ...

Prompting overview Larger task,plz include these parts: Goal Context Output: format,length,level of detail Boundaries Describe the result u need: not detailed list,but needed details those change what AI should produce Add useful context: for example: necessary attach file; visual work: screenshot,image;and point out which area matters web search: Explicitly( 显式地 ) ask to use Web Search in the conversation. share resources: using a directory Use connected sources: name where it should look and what if should find ...