45 Claude Code Hooks I Use to Automate Code Quality, Security, and Deployment

Hooks in Claude Code are shell commands that run automatically in response to events. Think of them as git hooks, but for your AI coding agent. I run 45 hooks that handle everything from pre-commit quality gates to post-deploy verification. Here are the most impactful ones. What Are Hooks? A hook is a shell command that fires when Claude Code does something. Events include: PreToolUse : Before a tool runs (file edit, bash command, etc.) PostToolUse : After a tool completes UserPromptSubmit : When you send a message Stop : When Claude finishes its response Each hook can inspect the event, modify behavior, or block the action entirely. My Top 10 Hooks (Ranked by Impact) 1. Credential Auto-Injector Event : UserPromptSubmit Detects when the conversation mentions a service (Stripe, GitHub, etc.) and auto-injects available credentials from the vault. No more asking for API keys. 2. Research Reminder Event : PreToolUse (on file writes) Before writing to a file, checks if Claude has READ the f