hooks
3 free lessons tagged hooks across AI, Programming. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Permissions, Sandboxes and Hooks: Containing an AI Agent
An agent with a shell can make destructive mistakes or follow injected instructions. Learn the four layers of control, from instruction files to OS sandboxes, why command-pattern rules are not a boundary, how hooks add deterministic checks, and how to design out the lethal trifecta.
Claude Code: Niche Features You're Probably Not Using
A tour of the underused Claude Code power features beyond basic prompting: CLAUDE.md memory, plan mode, rewind, custom slash commands, subagents, hooks, MCP servers, statusline, and headless mode.
React Hooks: State and Effects
useState, useEffect, useReducer, and useContext in React 19: the rules, snapshot semantics, dependency arrays, when NOT to useEffect, and the dependency-array footgun that bites everyone.