Author Claude Code hooks with syntax rules and exit-code contracts.
npx skills add https://github.com/viktorbezdek/skillstack --skill plugin-hooks
Please help me install this Agent Skill. Skill: plugin-hooks Source: https://github.com/viktorbezdek/skillstack/tree/main/plugin-dev/skills/plugin-hooks Command: npx skills add https://github.com/viktorbezdek/skillstack --skill plugin-hooks
Many developers struggle with the complexity of Claude Code hooks, often falling into common traps such as non‑blocking exit codes, incorrect matcher syntax, and unsafe updatedInput handling. This Skill provides a clear, authoritative guide to writing correct, secure hooks and avoids the most frequent pitfalls.
hooks.json examples for PreToolUse blockers, PostToolUse formatters, SessionStart context injection, Stop loop guards, Notification alerts, FileChanged watchers, and WorktreeCreate provisioning.Use the plugin-hooks skill to get step‑by‑step guidance for creating a PreToolUse hook that blocks risky commands.
High-intent search queries and answers about installing and using this skill.
To write a Claude Code PreToolUse hook, define a JSON configuration with the correct event matcher and a command handler that returns a non-zero exit code to block unsafe tool actions. This Skill provides step-by-step guidance and reference implementations for creating these blockers safely.
Claude Code hooks fail to block execution when using the exit-code-1 trap, a common anti-pattern. Correct hook authoring requires following specific exit-code contracts where exit code 2 blocks the tool action and outputs the stderr to the model, ensuring safe automation.
Claude Code hooks support over 24 event-driven automation triggers including PreToolUse, PostToolUse, SessionStart, Stop, Notification, FileChanged, and WorktreeCreate. These events allow you to intercept and automate workflows across various stages of tool execution and session management.
Yes, Claude Code hooks are designed for event-driven security and workflow automation. You can implement safe handlers across events like PreToolUse and FileChanged to prevent unsafe tool actions, inject context, and format outputs automatically.
Common Claude Code hook matcher mistakes include incorrect regex syntax and non-blocking exit codes. This Skill provides an anti-pattern checklist covering the 14 most frequent errors, such as matcher regex pitfalls and infinite Stop loops, to ensure correct configuration.
To prevent infinite Stop loops in Claude Code hooks, implement loop guards as specified in the hook exit-code contracts. This Skill details how to avoid these anti-patterns by providing practical reference implementations for Stop event handlers.
SensLiaoGuide Claude Code configuration setup, usage, and maintenance for projects and globally.
yu-iskwImplement and validate Claude Code hook configurations and executable scripts.
kangju2000Manage GitHub pull requests, issues, workflows, releases, and repositories via the gh CLI.
AmidVoshakulAutomate Git hook configuration for linting, formatting, and commit message validation.