T3 Code - "agent harness control surface"

If you run more than one AI coding agent, you know the routine: one terminal for Claude Code, another for Codex, a third for Cursor. Context scattered everywhere.

𝗧𝟯 𝗖𝗼𝗱𝗲 tackles that. It's an open-source control surface for the coding agents already installed on your machine.

17 AI Testing Tools

This AppSignal article provides a useful overview of 17 AI testing tools, organized into five categories: autonomous agents, AI-assisted platforms, script-generation tools, QA services, and specialized solutions

Curated collection of AI resources

Google - Build with Modern Web Guidance

Hugging Face - LLMs and NLP course

Patterns Dev Skills

Claude Code Tutorial: Beginner to Advanced

Advent of Agents

Pencil is agent driven MCP canvas built around open design format

2025: The State of Generative AI in the Enterprise

Google - Re-imagining textbooks for every learner

Microsoft - 21 Lessons teaching everything you need to know to start building Generative AI applications