What are Claude Code Skills?

Claude Code Skills are reusable prompt templates stored as markdown files in your project's .claude/skills/ directory. They let you codify best practices and common workflows into slash commands that Claude follows consistently.

How do I create a Claude Code Skill?

Create a markdown file in .claude/skills/ with instructions for Claude. The filename becomes the command name — for example, .claude/skills/code-review.md can be invoked with /code-review during a Claude Code session.

Can I share skills with my team?

Yes. Skills stored in .claude/skills/ can be committed to version control so every team member has access to the same standardized workflows. You can also organize skills into subdirectories by category.

What is the difference between project and global skills?

Project skills (.claude/skills/) are specific to the current project and are committed to git. Global skills (~/.claude/skills/) are personal skills available across all your projects.

planspec

New

Community RegistryGeneralby elertan

Design-first development workflow: brainstorming, implementation specs, autonomous execution, code review, and security review

Community PluginView Source

Overview

Design-first development workflow for Claude Code. Transform ideas into validated designs, then into actionable implementation plans with built-in review checkpoints.

Installation

code

/plugin marketplace add elertan/planspec
/plugin install planspec@planspec

Skills

Skill	Description
`/brainstorm`	Phase 0-5: Feasibility check → Design → Specification
`/impl-spec`	Generate phased implementation tasks from design specs
`/code-reviewer`	Quality and correctness review at checkpoints
`/security-reviewer`	Security-focused review for sensitive code

Workflow

code

User: "Let's build X"
         │
         ▼
    /brainstorm
    ├── Phase 0: Feasibility check
    ├── Phase 1: Understand problem
    ├── Phase 2: Define success
    ├── Phase 3: Explore approaches
    ├── Phase 4: Present design
    └── Phase 5: Write spec → planspec/designs/x.md
         │
         ▼
    /impl-spec planspec/designs/x.md
    └── Output: planspec/implementations/x.md
         │
         ▼
    Implementation with checkpoints
    ├── Phase 1: Tasks → /code-reviewer
    ├── Phase 2: Tasks → /code-reviewer
    └── Phase 3: Tasks → /code-reviewer + /security-reviewer
         │
         ▼
       Done

Philosophy

•Design before code: Validate approach before investing implementation time
•Feasibility first: Quick viability check before full design
•Implementation-ready specs: Designs contain enough detail to generate concrete tasks
•Review gates: No forward progress with broken or insecure code
•Meaningful tests: Test to verify correctness, not for coverage theater

License

MIT

Install & Usage

Create the skills directory

mkdir -p .claude/skills

Download the skill file

mkdir -p .claude/skills && curl -o .claude/skills/planspec.md https://raw.githubusercontent.com/elertan/planspec/main/SKILL.md

Invoke in Claude Code

/planspec

View source on GitHub

securitycode-reviewdesign

Frequently Asked Questions

What is planspec?

Design-first development workflow: brainstorming, implementation specs, autonomous execution, code review, and security review

How to install planspec?

To install planspec, create the .claude/skills directory in your project, then run the curl command to download the skill file. Once installed, invoke it in Claude Code with /planspec.

What is planspec best for?

planspec is a community categorized under General. It is designed for: security, code-review, design. Created by elertan.