HarnessDelta — Review Agent Config Diffs

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

Review code for quality, maintainability, and correctness. Use when reviewing pull requests, evaluating code changes, or providing feedback on implementations. Focuses on API design, patterns, and actionable feedback.

You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.

14 skills

Development conventions and patterns for everything-claude-code. JavaScript project with conventional commits.

The most loved spec framework. Our philosophy: Follow @0xTab on X for updates · Join the OpenSpec Discord for help and questions. Using OpenSpec in a team? Email here for access to our Slack channel. OpenSpec Dashboard Requires Node.js 20.19.0 or higher. Install OpenSpec globally: Then navigate to your project directory and initialize: Now tell your AI: /opsx:propose If you want the expanded workf