hook-generator
Creates and configures Claude Code hooks for event-driven automation. Activates when user wants to automate tasks, create event handlers, add formatting/logging/notifications, or ensure deterministic behaviors. Updates settings.json safely with hook configurations. Use when user mentions "create hook", "automate", "on save", "pre/post tool", "notification", "formatting hook", or wants always-on behaviors.
Security Assessment
Detected risks:
About hook-generator
The hook-generator skill is designed to facilitate the creation and configuration of Claude Code hooks, enabling users to implement event-driven automation within their development workflow. It addresses the challenge of manually setting up automation triggers for various events, ensuring that tasks execute deterministically at specific points in Claude Code's lifecycle. By providing a structured approach to hook creation, this skill reduces the risk of misconfiguration and streamlines repetitive or critical operations, allowing developers to focus on higher-level logic rather than the underlying automation plumbing.
The skill's main features include the ability to design effective hooks, generate valid configurations for the settings.json file, and provide templates for common automation patterns. It supports a wide range of events such as pre- and post-tool execution, user prompt submission, notifications, session start and end, and other lifecycle moments within Claude Code. Users can safely update configurations without breaking existing setups, choose appropriate events based on the intended automation, and follow best practices for hook commands, including handling stdin input, keeping commands simple, and managing error codes appropriately. The skill also guides users through tool matching, scope selection, and blocking behavior where relevant.
Ideal use cases include auto-formatting code after edits, validating files before saving, logging commands, sending desktop notifications, running automated tests after changes, session tracking, and creating backups before critical operations. The target users are developers, DevOps engineers, and automation enthusiasts who want to enhance their productivity through reliable, deterministic event-driven automation. It is particularly useful for teams that require compliance logging, pre- and post-processing of files, or seamless integration with external notification systems like Slack or Discord.
FAQ
How do I create a new hook using this skill?
You start by defining the purpose of the hook and selecting the event that should trigger it. Optionally, you can specify the tools it applies to, the scope (user-level or project-level), and whether it should block operations for certain events.
Which events are supported by the hook-generator?
Supported events include PreToolUse, PostToolUse, UserPromptSubmit, Notification, Stop, SubagentStop, PreCompact, SessionStart, and SessionEnd.
Can this skill safely update my settings.json without breaking existing hooks?
Yes, it is designed to modify the settings.json file safely, ensuring that existing hook configurations remain intact while adding new hooks.
Are there limitations on the complexity of hook commands?
Hook commands should remain simple, with complex logic delegated to external scripts. The skill encourages proper error handling and using stdin input when available.
Who is this skill intended for?
This skill is targeted at developers, DevOps engineers, and anyone looking to implement deterministic event-driven automation within Claude Code workflows.
Install hook-generator
Quick Setup:
- Copy the skill folder to
.claude/skills/ - Claude will automatically detect and use the skill
Repository
squirrelsoft-dev/claude-builder