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

With no annotations provided, the description carries the behavioral disclosure burden. It clearly states that only the display name changes, the v<N> identifier is unaffected, both UUID and v<N> are accepted, and empty/whitespace-only names are rejected. It does not mention permissions or response behavior, but the core side effects and validation are transparent.

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?

Three compact sentences each earn their place: one states the operation, one clarifies what is not changed, and one defines accepted inputs and validation. No redundant or filler content.

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 straightforward rename operation with fully documented parameters, the description provides sufficient operational context: target, side effects, accepted identifier forms, and validation constraints. Since there is no output schema, a brief note on the result is missing but not critical for correct invocation.

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 the baseline is 3. The description adds extra value by reinforcing the accepted versionId forms and introducing the whitespace-only rejection detail, which is more specific than the schema's 'non-empty string' constraint.

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 names the exact action ('Rename'), the target resource ('a saved version's human-readable label'), and what the user sees. It also distinguishes itself from sibling rename_* tools and version-management tools by clarifying that the v<N> identifier is unaffected, so an agent can select it unambiguously.

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 intended use is clear from the first sentence: when you need to change the display label of a saved version in the picker. The description does not explicitly name alternatives or state when not to use it, but the scope is specific enough that no competing sibling tool is ambiguous.

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