Hook Development

Event-driven hooks for Claude Code plugins are created by defining prompt-based or command-based automation triggered by session events such as PreToolUse, PostToolUse, Stop, and SessionStart. You integrate bash scripts and LLM reasoning to execute deterministic and context-aware logic.

Yes, you can validate tool calls before execution by implementing a PreToolUse hook. This intercepts file write operations to prevent accidental modification of system files or sensitive data, ensuring security and consistency.

You can trigger automation hooks on session events including PreToolUse, PostToolUse, Stop, and SessionStart. These event-driven triggers facilitate automated validation, logging, and context-aware actions within your development workflow.

Yes, hook development integrates directly with bash scripts to execute deterministic logic. It combines bash scripting with LLM reasoning to deliver both strict validation rules and context-aware automation for plugin workflows.

You add post-execution feedback by configuring a PostToolUse hook that reacts to tool results. This event-driven mechanism enables automatic logging, result analysis, and triggering further actions after a tool completes.

You should avoid event-driven hooks for logic that requires complex state management across multiple independent sessions. Hooks are designed for discrete, event-triggered validation and automation, not continuous background processing.