Find nearby Vinmonopolet stores

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

Annotations already declare read-only, idempotent, and non-destructive. The description adds useful context: latitude/longitude default to configured home location, and the return includes address, distance, category, and opening hours. This goes beyond the annotations.

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?

The description is well-structured with an Args/Returns layout and front-loaded purpose. However, the Args list largely duplicates schema descriptions, which is slightly redundant but not wasteful enough to drop below 4.

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 simple read-only tool with no output schema, the description adequately explains return values (list of stores with address, distance, category, opening hours) and optional parameter defaults. No critical behavioral details are missing for an agent to use 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 description coverage is 100%, so the schema already documents all parameters. The description repeats the defaults (home location, maxResults=5) without adding new semantics about formatting, constraints, or edge cases, so baseline 3 is appropriate.

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 states 'Find the closest Vinmonopolet stores to a given location' with a specific verb and resource, clearly distinguishing from siblings focused on beer stock/new releases. The return list of stores with address, distance, etc. reinforces the purpose.

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?

It provides clear context for when to use (nearby store lookup) and what it returns, but does not explicitly mention alternatives or when not to use it. The sibling polvenn_search_new_beers_near_store could be confused, but the description's focus on store details differentiates it.

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