compare_names

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

No annotations provided; description only states it scores and ranks but does not describe scoring methodology, return values, or whether it is a read/mutation operation. Limited behavioral insight.

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?

Two concise sentences, front-loaded with key purpose. Efficient but could include more structured bullet points for clarity.

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?

Adequate for basic usage but lacks behavioral details and parameter semantics. No output schema makes return type unclear. With 2 params and siblings, minimal but acceptable completeness.

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 50% with 'names' described as 'Candidate usernames' in schema. Description adds no new parameter details; 'lang' and scoring logic remain 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?

Description clearly states it scores and ranks multiple username candidates (max 20), distinguishing it from sibling 'score_name' which likely handles single names. Specific verb 'score' and resource 'username candidates' are present.

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?

Explicitly says 'Use when choosing between name options for a brand, bot, channel or investment.' Provides clear context for use but does not mention when not to use or alternatives.

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