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

With no annotations, the description carries the full behavioral burden, but it only restates the check in question form. It does not disclose whether the tool uses live Tor exit lists, how it handles invalid input, whether it distinguishes exit nodes from relays, or what the result represents.

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 one sentence and contains no obvious fluff, so it is concise. However, it is under-specified, and the 'Tor Exit Check:' prefix is partly redundant with the question that follows.

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 tool with a single undocumented parameter and no annotations, the description is too thin. The agent cannot tell what 'q' expects, what happens when it is empty (0 required params and a default of '' suggest it may be optional), or how this differs from the sibling 'tor' tool, even though an output schema exists.

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?

The schema provides only the parameter name 'q' with type string and no description, so schema description coverage is 0%. The description never mentions 'q' or defines the expected input format, and the default empty value's behavior is unexplained.

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 a specific operation: checking whether something is a Tor exit node ('Tor Exit Check: Is this a Tor exit node?'). It is more informative than the bare title, and the word 'exit' helps distinguish it from general Tor-related tools. However, it never explicitly says the input is an IP address or hostname.

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?

No guidance is given about when to use this tool versus alternatives such as the sibling 'tor' tool, nor any conditions or context for use. The agent is left to infer when this check is appropriate.

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