How do I trigger a specific skill in Claude Code?

Skills are triggered automatically based on keywords in your prompt, specific file paths being edited, or intent patterns defined in the skill-rules.json configuration file.

What is a Claude Code Skill?

A Claude Code Skill is a specialized capability that enhances Claude's behavior by providing domain-specific guidance, best practices, and implementation patterns through automated triggers.

What is the 500-line rule in Claude Skills?

The 500-line rule is a performance best practice requiring SKILL.md files to stay under 500 lines, using reference files for more detailed documentation to keep the AI's context window efficient.

What are the different enforcement levels for skills?

Skills use three main levels: BLOCK (prevents action until the skill is acknowledged), SUGGEST (provides proactive context), and WARN (offers advisory reminders without stopping the workflow).

Claude Skill Developer

Name: Claude Skill Developer
Author: Microck

byMicrock

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Developer Tools

Streamlines the creation, configuration, and management of Claude Code skills using Anthropic's best practices and automated trigger systems.

About

Claude Skill Developer provides a comprehensive framework for building and managing specialized capabilities within Claude Code. It simplifies the implementation of complex activation triggers—including keyword, intent, and file path patterns—while ensuring compliance with Anthropic's performance standards like the 500-line rule. By leveraging a dual-hook architecture for proactive suggestions and critical guardrails, this skill allows developers to enforce coding standards, automate domain-specific guidance, and manage session-aware notifications efficiently.

Key Features

Automated skill activation using keyword, regex, and intent patterns
Built-in session tracking to prevent repetitive user notifications
Standardized templates for YAML frontmatter and progressive disclosure patterns
Granular enforcement levels including block, suggest, and warn mechanisms
Dual-hook architecture for proactive suggestions and post-response reminders
81 GitHub stars

Use Cases

Implementing project-wide coding guardrails to prevent common architectural errors
Debugging and refining skill-rules.json configurations for team-wide Claude Code setups
Creating domain-specific documentation assistants for complex internal libraries

About

Key Features

Automated skill activation using keyword, regex, and intent patterns
Built-in session tracking to prevent repetitive user notifications
Standardized templates for YAML frontmatter and progressive disclosure patterns
Granular enforcement levels including block, suggest, and warn mechanisms
Dual-hook architecture for proactive suggestions and post-response reminders
81 GitHub stars

Use Cases

Implementing project-wide coding guardrails to prevent common architectural errors
Debugging and refining skill-rules.json configurations for team-wide Claude Code setups
Creating domain-specific documentation assistants for complex internal libraries