Why Your AI Agent Keeps Quitting Early (And the Fix That Actually Works)

Full architectural breakdown + diagrams: https://arize.com/blog/how-to-build-planning-into-your-agent Most AI agents don't fail because they lack capability. They fail because they forget what they were supposed to do. We break down the planning architecture we built into Alyx 2.0: structured tool calls instead of prompt instructions, a four-status task system, a PlanMessage injected at a fixed position every iteration, and a hard enforcement gate that prevents the agent from finishing before it's actually done. We also cover what we learned studying how Claude Code and Cursor handle complex workflows, and the emergent capabilities that showed up once planning was in place.