Skill Factory

Creates Claude Code skills with built-in best practices from Anthropic’s official documentation.

Why Skills?

Claude can’t hold everything in mind at once. Squirrel!

Skills solve the problem of distracted agent by releasing information gradually:

1. Startup: Only name + description loaded (~100 tokens per skill)
2. When triggered: Full instructions loaded
3. As needed: References loaded only when the task requires them

This keeps context lean while making rich knowledge available on demand.

Skills vs slash commands:

• Skills are model-invoked (Claude applies them when relevant based on the frontmatter and then relevant links in SKILL.md).
• Slash commands are user-invoked (/command).

Quick Start

1. Open this folder in Claude Code
2. Ask it to create a new skill
3. Answer a few questions — point to references or ask Claude to search online
4. Find your skill in output_skills/[category]/[skill-name]/

Using Your Skill

This repo includes a ./skills helper script for global installation.

Global (all projects) — use the script to symlink to ~/.claude/skills/:

./skills toggle    # interactive picker
./skills status    # check what's installed

Edits to output_skills/ apply immediately since it’s a symlink.

Local (single project) — copy the skill folder to your project’s .claude/skills/ or create a symlink in your project yourself.

STARTER_CHARACTER

Each skill defines a STARTER_CHARACTER = [emoji] at the top. This is a visual indicator that Claude has loaded the skill and is following its instructions. For example, the nullables skill uses ⭕️ and TDD uses 🔴/🌱/🌀.

To activate this, add the following to your global ~/.claude/CLAUDE.md:

Always start replies with STARTER_CHARACTER + space (default: 🍀). Stack emojis when requested, don't replace.

Pick any default emoji you like — it confirms Claude is reading your ground rules. When a skill activates, its emoji stacks on top: 🍀 ⭕️ means both your global rules and the nullables skill are active.

Without this line in your global CLAUDE.md, the STARTER_CHARACTER lines in skills might have unpredictable behavior.

Updating Best Practices

./update-docs

Pulls latest skill patterns from Anthropic.

Structure

docs/           — Skill creation knowledge and patterns
output_skills/  — Generated skills organized by category