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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so safety is covered. The description still adds real value by disclosing the shape of the result (stop names, categories, coordinates) and the deep-link-plus-store-fallback behavior, which is not derivable from annotations or schema.

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?

It is one front-loaded sentence that leads with the verb and resource before listing payload contents. Slightly dense with parenthetical asides ('narrated audio guide', 'App Store / Google Play fallback'), but every clause carries information.

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 must describe the return value, and it does so concretely down to the stop fields and the app link fallback. What is missing is minor: no note on error cases or how large a stop list can be.

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% and the single parameter's description already states it is a UUID obtainable from search_tours. The prose adds only the redundant phrase 'by its ID', so this sits at the baseline for a fully documented 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 uses a specific verb and resource ('Get full details for a specific Votura tour by its ID') and enumerates the payload (stops with names, categories, coordinates, plus an app deep link with store fallback). It implicitly separates itself from search_tours by requiring an ID, though it never names the sibling the way a top score would.

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?

Usage is only implied: the tool is for 'a specific tour by its ID', and the schema notes the ID comes from search_tours. There is no explicit statement of when to call this versus search_tours, and no mention of behavior for an unknown or malformed ID.

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