Agents are software—but most teams build them as notebooks: tightly coupled to specific LLMs, brittle infrastructure dependencies, impossible to version, unreproducible, and nightmarish for collaboration.

Traditional agent development entangles logic with API calls, specific model names, hardcoded credentials, database assumptions. Change the LLM provider? Rewrite half the code. Move from cloud to edge? Redesign everything. Add a second engineer? Merge conflicts and inconsistency.