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FailWatch is a Python SDK that blocks AI agents from performing dangerous actions by intercepting tool calls before they execute (e.g., unauthorized refunds, hallucinations). It acts as a synchronous circuit breaker in production, enforcing safety policies in real time with deterministic policy checks, hard blocks on numeric limits, budget constraints, and audit rules. By preventing risky actions, FailWatch reduces production risk in domains like e-commerce and banking.
AI named FailWatch in January 2026.