Reference
AI glossary
The words you meet when you build software with coding agents like Claude Code, Codex, Cursor and Grok Build. Each entry explains what the term means, how each tool handles it, and when it's worth using.
Every tool-specific detail comes from the vendor's own documentation, and each entry shows when I last updated it.
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5 terms
A
- Agent hooks
- See Hooks
C
- Context window
- The context window is everything a coding agent can see at once. How to check it, free it and keep it small in Claude Code, Codex, Cursor and Grok Build.
H
- Hooks
- Hooks run your own scripts when a coding agent calls a tool or stops. How hooks work in Claude Code, Codex, Cursor and Grok Build, with examples.
P
- Permission modes
- Permission modes decide what a coding agent can do without asking. The modes in Claude Code, Codex, Cursor and Grok Build, and what YOLO mode really skips.
- Plan mode
- Plan mode makes a coding agent research and propose a plan before it edits code. How it works in Claude Code, Codex, Cursor and Grok Build, and when to use it.
R
S
- Subagents
- A subagent is a helper your coding agent starts with its own context window. How subagents work in Claude Code, Codex, Cursor and Grok Build.