update_nat_outbound_mode

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already indicate idempotentHint=true and destructiveHint=false, but the description adds no further behavioral context. It does not disclose that this modifies a global firewall setting, whether it affects existing connections, or whether it is reversible. The description alone provides no transparency beyond the annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single short sentence with no wasted words, but it borders on under-specification. It is concise and front-loaded but lacks substance to the point of being almost a restatement of the tool name, so it does not fully earn its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite having an output schema and complete parameter schemas, the description is too sparse for a configuration-writing tool. It does not explain the reach of the change (global vs per-interface), any prerequisite steps, or relationship to other NAT apply tools. The context signals show a complex environment with many siblings, and this description does not provide enough operational context.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has full description coverage for both parameters (mode and apply_immediately), so the description does not need to explain them. However, it also adds no additional semantic context, such as the meaning of the mode values or the effect of apply_immediately. Baseline 3 is appropriate given the schema's completeness.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly identifies the action (update) and the resource (outbound NAT mode), distinguishing it from the read-only sibling get_nat_outbound_mode. However, it lacks any detail about what the mode controls or what the update entails, making it minimally informative but not a pure tautology.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool, prerequisites, or alternatives. It does not mention that changes may need to be applied via apply_nat_changes, nor does it contrast with update_nat_outbound_mapping for modifying individual mappings, leaving the agent without context for selection.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.