sw-enginnering-claude-skills

A collection of software engineering skills for Claude Code CLI. These skills extend Claude's capabilities with specialized knowledge and workflows for common software engineering tasks.

Installation

npm install sw-enginnering-claude-skills

The skills will be automatically installed to ~/.claude/skills/ after installation.

Global Installation

For system-wide access:

npm install -g sw-enginnering-claude-skills

Skills Included

| Skill | Description | |-------|-------------| | code-review-assistant | Comprehensive code review tool for analyzing bugs, security issues, performance problems, and style violations | | database-helper | Database schema design, migration generation, and query optimization | | design-engineer | Audit code for accessibility violations, component quality, and implementation consistency | | product-manager | Create user flows, PRDs, and maintain team alignment | | senior-architect | Technical application design with system architecture, database schemas, and API designs | | skill-creator | Guide for creating effective Claude Code skills | | technical-docs | Generate documentation including READMEs, API references, and ADRs | | testing-generator | Automatically generate comprehensive test suites | | ui-excellence | Apply visual design principles and B2B/enterprise UI patterns | | ux-excellence | UX design patterns and best practices | | ux-jesus | UX discovery agent for product requirements and design briefs |

Usage

After installation, the skills are available in Claude Code. Trigger them using their names or associated keywords:

/code-review-assistant   - Review code for issues
/database-helper         - Help with database tasks
/design-engineer         - Audit code for design issues
/product-manager         - Create PRDs and user flows
/senior-architect        - Design system architecture
/technical-docs          - Generate documentation
/testing-generator       - Generate test suites
/ui-excellence           - Apply UI design principles
/ux-jesus               - UX discovery and design briefs

Token Usage & Cost Tracker

This package includes a terminal widget to track your Claude Code token usage and estimated costs.

View Token Costs

After global installation, run:

claude-token-cost

Or using npm:

npm run token-cost

This displays:

• Total usage by model - Input/output tokens and cache usage with costs
• Last 7 days - Daily breakdown of messages, tool calls, and estimated costs
• Summary - Total sessions, messages, and all-time estimated cost

Cost Tracker Options

claude-token-cost --help    # Show help
claude-token-cost --json    # Output raw JSON data

Pricing

Costs are estimated based on Anthropic's published pricing:

| Model | Input | Output | Cache Read | Cache Write | |-------|-------|--------|------------|-------------| | Claude Opus 4.5 | $15/1M | $75/1M | $1.50/1M | $18.75/1M | | Claude Sonnet 4 | $3/1M | $15/1M | $0.30/1M | $3.75/1M |

Commands

List available skills

npm run list-skills

View token costs

npm run token-cost

Uninstall skills

To remove the skills from ~/.claude/skills/:

npm run uninstall-skills

Reinstall skills

Run the postinstall script manually:

npm run postinstall

Manual Installation

If you prefer to install skills manually:

1. Clone or download this package
2. Copy the contents of the skills/ directory to ~/.claude/skills/

cp -R skills/* ~/.claude/skills/

Updating Skills

To update to the latest version:

npm update sw-enginnering-claude-skills

The postinstall script will automatically overwrite existing skills with the updated versions.

Creating Your Own Skills

Use the included skill-creator skill to create new skills:

/skill-creator

This will guide you through creating a properly structured skill with:

• SKILL.md with frontmatter
• Optional references folder
• Proper triggers and descriptions

License

MIT