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

No annotations are provided, so the description carries the full burden of behavioral disclosure. Six words reveal nothing about side effects, return values, error behavior, or whether the tool is read-only. 'value discarded' is ambiguous and does not clarify the tool's actual behavior.

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?

At six words, the description is short, but this is under-specification rather than effective conciseness. There is no actionable content, front-loaded or otherwise, so brevity does not earn its place.

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 9 parameters, no output schema, and no annotations, this tool needs a substantive description to be usable. The cryptic one-liner leaves agents unable to determine the expected return value, how parameters should be combined, or whether the parameters are alternatives or complements.

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%, so the input schema already documents every parameter, meeting the baseline. However, the tool description adds no meaning about how the parameters relate to the stated 'Hashids alphabet length' purpose, leaving the selection logic unclear.

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 'Hashids alphabet length, value discarded' is a noun phrase with no verb or resource, so it never states what the tool does. It also fails to connect to the heterogeneous parameter set (ref, url, city, feed, host, json, path, zone, query), leaving the operation ambiguous even at a high level. It does not distinguish itself from siblings like validate-json or normalize-url.

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 any sibling. The description does not mention conditions, exclusions, or alternatives, and the parameter descriptions only hint at 'discarded' behaviors without explaining a selection strategy.

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