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

No annotations are provided, so the description carries the full behavioral burden. It only says 'Wikipedia places near a coordinate' and does not disclose input format expectations, output behavior, limitations, or anything about how coordinates are interpreted.

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 a single short sentence with no filler. The leading 'Nearby Places' is somewhat redundant with the tool name, but the overall structure is efficient and easy to parse.

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 one parameter, an output schema, and a one-line description, this is not a complex tool, but the missing coordinate format and lack of usage context leave a real gap. An agent cannot confidently know what to put in 'q'.

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 0%, and the schema only shows a parameter named 'q' with a default of ''. The description hints that the tool is coordinate-based but never explicitly maps 'q' to a coordinate format or explains what values it accepts, leaving the agent to guess.

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 the resource (Wikipedia places) and the selection criterion (near a coordinate), which distinguishes it from siblings like wikipedia or trendingwiki. It lacks an explicit verb like 'get' or 'list', but the intent is unmistakable.

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?

There is no guidance on when to use this tool versus alternatives such as wikipedia, wikisummary, geocode, revgeo, or whatsnearby. The description implies a coordinate-based use case but does not state exclusions or preferred scenarios.

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