Design a fallback strategy when tools are unavailable, degraded, or unauthorized.

Instruction: Describe how you would design graceful degradation for the tool layer.

Context: Assesses whether the candidate can design a practical architecture and explain the main tradeoffs. Describe how you would design graceful degradation for the tool layer.

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I would make fallback depend on why the tool path failed. Unauthorized should produce a clear boundary explanation and, if appropriate, a reconnection path. Degraded or unavailable should trigger either a narrower read-only answer, a delayed retry path, or escalation depending on workflow risk.

The important rule is that fallback...

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