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

No annotations are provided, so the description carries the burden of disclosing behavior. It mentions the optional transformations and that it runs on smart-tools.xyz, but does not explain the output format, ordering behavior, edge cases, or any input limits. The description adds some context but is not comprehensive.

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 and front-loaded with the core functionality. However, the phrase 'Runs on smart-tools.xyz' is unnecessary and does not aid an agent in selecting or invoking the tool. This minor filler prevents a perfect score.

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 six parameters and no output schema, so the description should ideally explain what the tool returns and how the options interact. The current description explains the features but omits return format, input constraints, and algorithmic details. It is adequate for a simple tool but has clear gaps.

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% for all six parameters, so the schema already documents each parameter. The description does not add significant meaning beyond enumerating the options already present in the schema. It maps to parameters but provides no additional value, hence the baseline score of 3.

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 clearly states the tool's function with a specific verb ('Remove duplicate lines') and lists the available options (trim, case-insensitive matching, sorting, only duplicates). This distinguishes it from sibling tools, which are mostly calculators/converters. The purpose is unambiguous.

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?

The description does not provide any guidance on when to use this tool versus alternatives. There is no mention of appropriate use cases, exclusions, or comparison with other text manipulation tools. The usage is only implied by the name and feature list.

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