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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the description is not needed for the safety profile. It still adds real value by disclosing what the tool actually produces: a link that opens the app ready for the user to press Generate, meaning nothing is generated server-side. The defaults-fill behavior for shape, size and relief is also stated.

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?

Front-loaded with the outcome (settings plus a ready-to-generate link) before the usage condition and input options. Sentences carry distinct information with little repetition, though the closing defaults sentence partly restates schema defaults.

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 8 parameters and no output schema, the description fills the gap by describing the returned artifact (a deep link with settings filled in) rather than raw data. Input modes, defaults, and the required world context are all covered, leaving nothing an agent needs in order to call it correctly.

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 semantics beyond the schema: place comes from search_places, coordinates are an alternative input mode that loses the settings payload, and shape/size/relief are optional with app defaults substituting. That coordinate-link caveat is not obvious from the parameter definitions alone.

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 (suggest) and resource (OrbitStudio model settings for a 3D-printed puzzle or ornament of a place), plus the concrete deliverable: a link that opens the app with settings prefilled. An agent can distinguish this from search_places (a data source it names) and from the other siblings without opening the schema.

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?

"Use it when the user wants to make or print a model of a specific place" gives a clear trigger, and it names search_places as the prerequisite for place input. It also warns that a coordinate link cannot carry settings, which steers the agent toward named places. It stops short of explicitly excluding sibling tools such as get_preview or star_map_link.

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