Installing Skills System

Overview

Installs the clank skills repository to ~/.clank/clank and configures Claude to use it.

For Claude agents: Follow the "Installation Steps for Claude" section below.

For humans: Follow the "Quick Install" section.

Installation Steps for Claude

When instructed to install clank, follow these steps exactly:

Step 1: Clone Repository

With GitHub CLI (if available):

mkdir -p ~/.clank
cd ~/.clank
gh repo fork obra/clank --clone --remote-name upstream

Without GitHub CLI:

mkdir -p ~/.clank
cd ~/.clank
git clone https://github.com/obra/clank.git

Step 2: Run Installer

cd ~/.clank/clank
./skills/meta/installing-skills/install.sh

This creates symlinks for skills and commands.

Step 3: Update CLAUDE.md

Use the Edit tool to add this XML section to the very beginning of ~/.claude/CLAUDE.md:

<EXTREMELY_IMPORTANT>
You have a personal skills wiki at ~/.claude/skills/ with proven techniques, patterns, and tools that give you new capabilities.

STOP. Before doing ANYTHING else in this conversation, read this file: skills/getting-started

That file tells you how to find and use your skills.

ONLY after reading getting-started, are you allowed to proceed with the user's request.

CRITICAL: If a skill exists for your task, you MUST use it - even if you think you're already good at that. You're not. The skill prevents mistakes you don't know you make. SKILLS EXIST AND YOU DIDN'T USE THEM = FAILED TASK.

</EXTREMELY_IMPORTANT>

Step 4: Verify Installation

ls -la ~/.claude/skills
ls -la ~/.claude/commands
~/.claude/skills/getting-started/skills-search 'test.*driven'

Step 5: Restart

Tell your human partner: "Installation complete. Please restart your Claude session to pick up the new CLAUDE.md configuration."

Quick Install (for humans)

curl -fsSL https://raw.githubusercontent.com/obra/clank/main/skills/meta/installing-skills/install.sh | bash
# Then manually add CLAUDE.md section from Step 3 above

What install.sh Does

1. Validates you're running from clank repo root (expects ~/.clank/clank)
2. Backs up existing ~/.claude/skills (if exists) to timestamped backup
3. Creates skills symlink: ~/.claude/skills → ~/.clank/clank/skills
4. Symlinks individual commands from ~/.clank/clank/commands/*.md to ~/.claude/commands/
5. Verifies tools available (skills-search at ~/.claude/skills/getting-started/skills-search)
6. Prints CLAUDE.md XML snippet to add and verification steps

Verification

After installation, verify it worked:

# Should show symlink to ~/.clank/clank/skills
ls -la ~/.claude/skills

# Should show individual command symlinks
ls -la ~/.claude/commands/

# Test skills-search tool
~/.claude/skills/getting-started/skills-search 'test.*driven'

What Gets Installed

Skills (~/.claude/skills/):

• Library of proven techniques, patterns, and tools
• Referenced with @ syntax in code and documentation
• Searchable with skills-search tool

Commands (~/.claude/commands/):

• Individual symlinks to clank command files
• Slash commands for Claude (/brainstorm, /write-plan, /execute-plan)
• Each command references a skill using @ syntax
• Makes common workflows one command away

Tools (~/.claude/skills/getting-started/):

• skills-search - Find relevant skills using grep patterns
• Logs failed searches for gap analysis

Why Fork?

Forking lets you:

• Customize skills and commands for your workflow
• Contribute improvements back via PR (see skills/contributing-skills)
• Stay synced with upstream updates (git pull upstream main)
• Track your customizations in version control

Configure CLAUDE.md

After installation, edit your ~/.claude/CLAUDE.md and add this section:

<extremely_important_skills_library>
You have a personal skills wiki at `~/.claude/skills/` with proven techniques, patterns, and tools that give you new capabilities.

STOP. Before doing ANYTHING else in this conversation, read this file: `skills/getting-started`

That file tells you:
- Which phrases trigger brainstorming automatically (like "I've got an idea", "Let's make...")
- How to search for skills before ANY task
- When to announce which skill you're using

After reading getting-started, proceed with the user's request.

CRITICAL: If a skill exists for your task, you MUST use it - even if you think you're already good at that. You're not. The skill prevents mistakes you don't know you make. SKILLS EXIST AND YOU DIDN'T USE THEM = FAILED TASK.
</extremely_important_skills_library>

This enables:

• Automatic skill discovery before every task
• Mandatory skill usage enforcement
• Gap tracking for missing skills (logged searches)

Updating Skills

After initial install, update with:

cd ~/.clank/clank
git pull origin main    # Pull your changes
git pull upstream main  # Pull upstream updates (if configured)

The symlinks stay valid - no need to reinstall.

Troubleshooting

"Error: Not running from clank repository root"

The script expects to be run from ~/.clank/clank/. Clone it first:

mkdir -p ~/.clank
cd ~/.clank
gh repo fork obra/clank --clone
cd clank
./skills/meta/installing-skills/install.sh

"~/.claude/skills already exists"

The installer automatically backs it up with timestamp. Check backups:

ls -la ~/.claude/skills.backup.*

Symlinks broken

Remove and reinstall:

rm ~/.claude/skills
rm ~/.claude/commands/*.md  # Remove individual command symlinks
cd ~/.clank/clank
./skills/meta/installing-skills/install.sh

Uninstalling

# Remove symlinks
rm ~/.claude/skills
rm ~/.claude/commands/brainstorm.md
rm ~/.claude/commands/write-plan.md
rm ~/.claude/commands/execute-plan.md

# Restore backup if desired
mv ~/.claude/skills.backup.YYYY-MM-DD-HHMMSS ~/.claude/skills

# Remove from CLAUDE.md
# Delete the "Skills Library" section from ~/.claude/CLAUDE.md

# Remove cloned repo
rm -rf ~/.clank/clank

Implementation

See @install.sh for the installation script.