A starter shelf of official documentation:
https://modelcontextprotocol.io/ — Model Context Protocol
https://developer.mozilla.org/ — web platform references
https://docs.python.org/3/ — Python documentation
https://www.sqlite.org/docs.html — SQLite documentation
https://git-scm.com/doc — Git documentation
Before adopting a tool, check its current version, authentication requirements, rate limits, write permissions, license, and maintenance status.
When recommending a resource here, explain what it helps with and add one limitation. Please suggest additions with primary links rather than affiliate links.