similarweb_search

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

No annotations are provided, so the description should fully disclose behavioral traits. It only states it returns data, but does not mention rate limits, authentication requirements, or what happens on invalid queries. Minimal behavioral context.

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 concise with two sentences and no unnecessary words. It is well-structured, but could be slightly more informative without losing conciseness.

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?

The tool has a single parameter and no output schema, but the description is incomplete for full agent utility. It does not describe the output format or what 'SimilarWeb data' entails, and it does not address the sibling similarweb_web tool.

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% for the single parameter 'q', so the schema already defines its meaning. The description adds 'typically a domain', which is marginally helpful. Baseline 3 is appropriate as the description adds little extra value.

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 it searches SimilarWeb info and returns data for a query (typically a domain). It is clear but vague, as 'SimilarWeb Info' is not specific. It fails to differentiate from the sibling tool 'similarweb_web', which likely provides more detailed or specific SimilarWeb data.

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 provided on when to use this tool versus alternatives like similarweb_web. Without explicit when-to-use or when-not-to-use instructions, the agent is left to infer usage context.

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