Ennea Mooirai

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

Annotations already indicate readOnlyHint=true, destructiveHint=false, idempotentHint=true. The description adds no behavioral context (e.g., what the classification produces, what happens with invalid input). It does not contradict annotations.

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 very short but this is under-specification, not conciseness. It lacks essential information and the structure is minimal. The example is incomplete.

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?

Given the tool has 11 parameters, no output schema, and many siblings, the description is severely incomplete. It does not explain what the tool returns, how to construct a valid request, or how it differs from other classification tools.

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 0% and the description does not explain any of the 11 parameters. The example request body '{...chart...}' is misleading because the schema has no 'chart' parameter. No parameter meaning is conveyed beyond the schema.

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 is essentially a tautology: 'Nine fates classification' restates the tool title 'Ennea Mooirai' which means nine fates. It does not use a specific verb or clarify the resource being classified. The group tag provides some context but does not distinguish the tool from sibling Hellenistic Schmidt tools.

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 on when to use this tool versus alternatives. There are many sibling Hellenistic Schmidt tools, but the description does not explain when one would need a 'nine fates classification' over other classification methods.

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