🧪 Effect
This skill helps you write and review Effect-TS code by applying domain-focused patterns for services, errors, layers, and testing.
npx playbooks add skill michaelvessia/nixos-config --skill effect
About Effect
This skill helps you write and review Effect-TS code by applying domain-focused patterns for services, errors, layers, and testing.
The 19-word prompt provides structured testing & qa guidance — covering detailed methodology and consistent output formats. Install it in one command.
Use Cases
- Writing unit, integration, and end-to-end tests
- Setting up test coverage and CI pipelines
- Refactoring legacy code with confidence using tests
- Creating test plans and QA checklists
Example Prompts
System Prompt (19 words)
This skill helps you write and review Effect-TS code by applying domain-focused patterns for services, errors, layers, and testing.
Frequently Asked Questions
What is Effect?
Effect is a free testing & qa skill for AI coding agents. This skill helps you write and review Effect-TS code by applying domain-focused patterns for services, errors, layers, and testing.. It provides a specialized system prompt that configures your agent with testing & qa expertise.
How do I use Effect with Claude Code?
Run npx playbooks add skill michaelvessia/nixos-config --skill effect in your terminal to install Effect into your Claude Code session. It works immediately after installation.
Which AI coding agents work with Effect?
Effect is compatible with Claude Code, Cursor, GitHub Copilot, Windsurf, OpenClaw, Cline, and any AI agent that supports custom system prompts or .cursorrules files.
Is Effect free to use?
Yes, Effect is completely free and open source. The full source is available on GitHub at https://github.com/michaelvessia/nixos-config/tree/main/modules/programs/claude-code/skills/effect. You only need a subscription to the AI agent you use it with.
