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Jun 6, 2026 · Artificial Intelligence

When a Tool Call Ends: Observation Layer as the Quality‑Check Station for AI Agents

The article explains why AI agents often produce unreliable answers after a tool call finishes, identifies the missing observation layer as the quality‑check station, and details how to format, classify, grade errors, perform self‑critique, enforce a Definition of Done, and prevent loops or premature termination.