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

Annotations already declare readOnlyHint, idempotentHint and non-destructive, so the safety profile is covered structurally. The description adds that this only produces a link and that room/style are validated against Roomvana's catalogue, but says nothing about what happens on invalid input, link lifetime, or auth requirements.

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 tight sentences, front-loaded with the transformation, then the downstream user flow, then the validation caveat. No filler text.

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 no output schema, the description carries the burden of explaining the return value (a studio link) and it does so clearly in the first sentence. Missing only edge-case behavior on invalid room/style, which is minor for a 3-param tool.

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 coverage is 100%, so the baseline is 3. The description adds real meaning by stating the chosen options are pre-selected in the generated link and clarifying that notes are merely echoed (not encoded), which helps an agent reason about what actually affects the output.

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?

Names a specific verb+resource: turning a room and style into a Roomvana studio link. The transformation is concrete and clearly different from the sibling listers, though it never explicitly contrasts itself with list_design_styles/list_room_types.

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 implies the use case by narrating the end-to-end flow (user opens the link, uploads a photo, gets a redesign), but gives no explicit when-to-use/when-not-to-use guidance or prerequisites for calling it.

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