Chef_AI(@itschef_ai):I built a harness for gpt5.5 with Mastra that outperformed fable5 on select @terminalbench 2.0 tasks with 92% accuracy by just running it on a loop. Having built agents for quite sometime now, I can confidently say that Mastra is one of the only real and complete options for any dev migrating/integrating agentic workflows with past exp of JS/TS/web dev/tool/api/platform devs. They have a complete ecosystem for any dev as an enterprise use case and especially within the personal agent space given generous free tiers. With this CLI, it’s going to make building and monitoring agents really easy. Going to share that harness soon:)

2026.06.22 19:50

I built a harness for gpt5.5 with Mastra that outperformed fable5 on select @terminalbench 2.0 tasks with 92% accuracy by just running it on a loop. Having built agents for quite sometime now, I can confidently say that Mastra is one of the only real and complete options for any dev migrating/integrating agentic workflows with past exp of JS/TS/web dev/tool/api/platform devs. They have a complete ecosystem for any dev as an enterprise use case and especially within the personal agent space given generous free tiers. With this CLI, it’s going to make building and monitoring agents really easy. Going to share that harness soon:)