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

The description goes far beyond the annotations (destructiveHint=true, idempotentHint=true) by detailing permanence and no-undo, the impact on documents and in-progress signers, billing consequences (no refund, billed instance release), and the prerequisite relationship with delete_link. It contradicts nothing in the annotations; the idempotent hint aligns with 'cannot be undone' because repeated calls have no additional effect.

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?

Each sentence delivers high-value information: permanent destruction, effect on documents/signers, billing, confirmation requirement, and relationship to delete_link. Although the description is longer than average, there is no fluff and it is front-loaded with the core purpose and permanence warning, making it efficient for agent consumption.

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?

With only one parameter, no output schema, and rich annotations, the description covers all essential operational aspects: permanence, document access, signer interruption, billing, prerequisite ordering, permissions, and confirmation. Nothing an agent needs to decide whether and how to invoke the tool is missing.

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 schema covers linkId with a clear description ('Unique identifier of the public link to disable'), so the parameter meaning is fully provided by the schema. The description adds no extra semantic detail about this parameter, which is acceptable given the 100% schema coverage; baseline 3 is appropriate.

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 opens with the specific verb-resource pair 'Switches a public link off PERMANENTLY', clearly distinguishing it from siblings like update_link (which implies reversible changes) and delete_link (the subsequent deletion step). It also names duplicate_link as the only way to get a new link, reinforcing its unique role.

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?

It explicitly states the tool is the 'REQUIRED FIRST STEP before delete_link', provides a mandatory confirmation guideline ('Always confirm with the user first, naming the link'), and clarifies that anyone with account access may use it. This gives an agent both the when-to-use and how-to-use context, and distinguishes it from the other destruction tool.

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