Shell Ergonomics Skills

A Claude Code plugin focused on shell ergonomics: AI-powered statusline enhancements, session tracking, intelligent summaries, and developer experience improvements.

Features

✅ AI-Powered Statusline - 3-line status display with Starship integration ✅ Session Names - Auto-generated meaningful session names using Claude Haiku ✅ AI Summaries - Intelligent session summaries based on your actual work ✅ Plan Tracking - Correlate Claude Code plans with sessions ✅ Tool Usage Display - Show top 3 tools used in current session ✅ Smart Caching - Message-count-based invalidation (idle sessions keep state) ✅ Intelligent Cleanup - Threshold-based cache management (only when > 100MB)

Installation

From Plugin Marketplace (Recommended)

Step 1: Add the Marketplace

/plugin marketplace add wildcard/shell-ergonomics-skills

Step 2: Install the Plugin

/plugin install shell-ergonomics-skills@wildcard

Step 3: Configure Statusline

Add to ~/.claude/settings.json:

{
  "statusLine": {
    "type": "command",
    "command": "bash ~/.claude/plugins/cache/shell-ergonomics-skills/skills/advanced-statusline/scripts/statusline-wrapper.sh"
  }
}

Then restart Claude Code.

Development Installation

# Clone the repository
git clone git@github.com:wildcard/shell-ergonomics-skills.git

# Run Claude Code with the plugin loaded
claude --plugin-dir ./shell-ergonomics-skills

For development, configure statusline in ~/.claude/settings.json:

{
  "statusLine": {
    "type": "command",
    "command": "bash /path/to/your/clone/shell-ergonomics-skills/skills/advanced-statusline/scripts/statusline-wrapper.sh"
  }
}

Replace /path/to/your/clone with your actual clone path, then restart Claude Code.

Requirements

• Starship - brew install starship
• jq - brew install jq
• Claude Code CLI

Statusline Output

The statusline displays 3 lines:

🦀 Claude 3.5 Sonnet | main via 🦀 v1.74.0 | 45% ctx
Creating plugin project with tests 🔧 Read, Write, Edit | 1370c291
Shell ergonomics skills 📋 curious-noodling-catmull

Line 1: Workspace emoji, model, git branch (via Starship), context percentage Line 2: AI-generated summary, tool usage, session ID Line 3: Session name, plan indicator

How It Works

Hooks

The plugin registers hooks that run automatically:

• UserPromptSubmit: Generate session names, track plans
• PostToolUse: Record tool usage for display
• SessionStart: Initialize plan tracking

Caching Strategy

• Message-count-based: Only regenerate when NEW user messages arrive
• Idle preservation: Sessions idle for days keep their cached state
• Cleanup threshold: Only delete old files when cache > 100MB
• Age-based retention: Keep files < 7 days old

AI Integration

Uses Claude Haiku with structured output for:

• Session summaries (60 char max)
• Session names (40 char max, 3-5 words)
• Prompt caching for fast subsequent calls

Testing

See tests/README.md for the test suite using bats-core.

# From the plugin directory
bats tests/*.bats

Troubleshooting

Statusline shows errors:

• Install Starship: brew install starship
• Install jq: brew install jq

Hooks don't run:

• Restart Claude Code (hooks load at session start)
• Check script permissions: ls -la hooks/scripts/

AI summaries timeout:

• First run takes longer (no cache)
• Subsequent runs use prompt caching (faster)
• Fallback to user messages if timeout occurs

License

MIT