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

Annotations already indicate destructiveHint=true and readOnlyHint=false, which the description aligns with but adds almost nothing beyond 'in your account'. It does not disclose what fields will be updated, whether changes are reversible, or any side effects, so the behavioral coverage is minimal.

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 short but redundant: 'Update a Private Network by id - Update a Private Network by id in your account' repeats the same content in two clauses. This is under-specification rather than concise writing; every sentence should add value, and the second part adds negligible value.

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?

For a mutation tool with no output schema and two body parameters (name, description), the description is critically incomplete. It fails to state the update behavior, effect on existing fields, required header parameters, or any return value expectations. The tool's complexity is not addressed at all.

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?

Schema description coverage is 0%, and the description provides zero parameter detail. It does not mention that privateNetworkId identifies the target, that patchPrivateNetworkBody contains updatable fields like name and description, or that x-request-id is required. The schema's inline descriptions for body properties are not enough to compensate for the complete lack of parameter explanation in the description.

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 states the action ('Update') and the resource ('a Private Network by id'), making the tool's purpose unambiguous. However, it does not distinguish this from sibling tools like createPrivateNetwork or deletePrivateNetwork beyond the implied update semantics, so it falls short of a 5.

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?

There is no guidance on when to use this tool versus alternatives, no mention of prerequisites (e.g., existing private network), and no exclusions. The description simply repeats the tool's name and title, offering no contextual decision-making support.

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