Hook Development

by Galaxy-Dawn

Hook Development is an AI Engineering skill for Claude Code, published by Galaxy-Dawn in claude-scholar.

5.1K stars415 forkson Galaxy-Dawn/claude-scholarAdded 2026/08/16+1% in starsRepository updated 2026/07/17

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academic-researchai-agentsclaudeclaude-codecodex-clideveloper-toolskimi-codemcpopenai-codexopencodepaper-writingzotero

Install in seconds

Install Hook Development

Copy Hook Development into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/Galaxy-Dawn/claude-scholar/tree/main/skills/hook-development ~/.claude/skills/hook-development

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/Galaxy-Dawn/claude-scholar.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/hook-development/SKILL.md in Galaxy-Dawn/claude-scholar
Installs to: ~/.claude/skills/hook-development
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Hook Development does

Hook Development provides guidance for creating Claude Code plugin hooks, focusing on prompt-based hooks and event-driven automation. Use it when implementing PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, or other hook events to validate tool use, enforce policies, or add context.

Hook Development is cataloged under AI Engineering on DirSkills. Hook Development comes from a repository tagged academic-research, ai-agents, claude, claude-code and codex-cli.

Documentation

README

Excerpt

Hook Development for Claude Code Plugins

Overview

Hooks are event-driven automation scripts that execute in response to Claude Code events. Use hooks to validate operations, enforce policies, add context, and integrate external tools into workflows.

Key capabilities:

Validate tool calls before execution (PreToolUse)
React to tool results (PostToolUse)
Enforce completion standards (Stop, SubagentStop)
Load project context (SessionStart)
Automate workflows across the development lifecycle

Hook Types

Prompt-Based Hooks (Recommended)

Use LLM-driven decision making for context-aware validation:

{
  "type": "prompt",
  "prompt": "Evaluate if this tool use is appropriate: $TOOL_INPUT",
  "timeout": 30
}

This is the opening of the README. Read the full README on GitHub.

Commands Hook Development provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/hooks

Frequently asked about Hook Development

What else does Galaxy-Dawn publish alongside Hook Development?
Hook Development is one of 25 skills that DirSkills catalogs from Galaxy-Dawn/claude-scholar, the repository it ships in. Its siblings there include Agent Identifier, Architecture Design and Bug Detective. Each one is a separate skill with its own page in this directory, installs the same way Hook Development does, and is maintained by Galaxy-Dawn in that same repository. The rest of the collection is listed on the Galaxy-Dawn/claude-scholar page.
How does Hook Development compare to other AI Engineering skills?
Hook Development ranks #501 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Hook Development against them. Open each page to compare what they document and how they install.