UpdateDocument

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. It only says an existing document is updated; it does not mention permissions, overwrite behavior, idempotency, side effects, or failure modes. The word 'Existing' adds slight scope but little real behavioral depth.

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 sentence with no wasted words and the action is front-loaded. However, it is so skeletal that it does not provide enough substance to be a strong tool definition, especially given the large sibling set.

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?

Even though there are no parameters and no output schema, the surrounding sibling set includes many specialized update tools and there are no annotations, so an agent needs more context to know which document workflow this belongs to. The description leaves that ambiguity unresolved.

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 zero properties and 100% description coverage, so there are no parameter details for the description to add. With zero parameters, a 4 is the appropriate baseline because nothing is left undocumented by the schema.

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 states a clear action ('Update') and target ('Existing Document'), so an agent can tell at a high level that this modifies an existing document. However, it gives no detail that would distinguish it from sibling tools such as UpdateCompareDocument, UpdateScanDocument, or UpdateProcessIndustryUtilityDocument, so it does not reach 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 about when to use this tool versus the many related document-update siblings. No scenarios, prerequisites, exclusions, or alternatives are mentioned, so the description does not support tool selection.

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