Skill UI

A comprehensive guide for diagnosing and fixing common integration errors with Customer.io. It covers critical topics such as API status codes (400, 401, 429), authentication failures, incorrect timestamp formatting, and best practices for event tracking and transactional message delivery. Use this resource when troubleshooting campaign failures or API calls failing.

This skill performs visual inspection and validation of website design quality, identifying and fixing issues at the source code level. It supports static sites, SPA frameworks, and full-stack applications. The workflow includes information gathering, visual inspection for layout, responsive, and accessibility issues, followed by source code fixes and re-verification. It ensures responsive design, visual consistency, and accessibility compliance across various viewports.

This guide provides a comprehensive reference for diagnosing and fixing common Notion API errors. It covers critical HTTP statuses and specific error codes (such as 401 Unauthorized, 403 Restricted Resource, 404 Object Not Found, 400 Validation Error, and 429 Rate Limited). Use it when debugging failed Notion integrations, managing permissions, or resolving data structure issues for reliable development.