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

Annotations already declare destructiveHint=true, idempotentHint=true and readOnlyHint=false, so the safety profile is covered. The description adds one piece of value the annotations lack: the required write scope. However, it does not disclose what 'destructive' means here — whether omitted fields are cleared, whether replacing 'structure' rewrites the folder hierarchy, or how is_default conflicts are resolved.

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?

Two short sentences, front-loaded with the action and the identifier, no filler. It is efficient, though it is efficient at conveying very little.

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 rich annotations and a fully documented schema, the scope note plus the action statement is minimally sufficient. The missing piece is update semantics: whether this is a partial patch or a full replace, and what happens to unspecified fields.

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 100%, so id, name, structure, is_default and description are all documented in the schema itself. The description adds nothing about parameter behavior (e.g., partial vs full update semantics), so this sits at the baseline of 3.

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?

States a specific verb+resource ('Update a project document folder template') and identifies the identifier used ('by ID'). The resource name matches the sibling naming family (get_/delete_/list_/create_project_document_folder_template), so an agent can distinguish it from the read and list variants, though no explicit sibling routing is given.

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 gives no when-to-use guidance, no prerequisites beyond the scope string, and no exclusions (e.g., use the list tool to find IDs first, or use create_ for new templates). It is purely a restatement of the action.

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