Magentic-One
io.github.microsoft/magentic-one
Autogen
Microsoft's generalist five-agent team: an orchestrator directing a web surfer, file surfer, coder, and terminal to solve open-ended tasks.
Agent Patterns Gallery
io.github.openai/agent-patterns-gallery
Custom
Sixteen single-file patterns from OpenAI: deterministic pipelines, agents-as-tools, parallelization, routing, LLM-as-judge, guardrails, human-in-the-loop.