Create category

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

Annotations already declare write (readOnlyHint=false), non-destructive, non-idempotent, closed-world behavior, so the safety profile is covered. The description adds a genuine domain constraint that the annotations cannot express: ZenMoney permits only one nesting level. It still says nothing about duplicate handling, permission requirements, or the creation response.

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?

A single front-loaded sentence with no filler; the nesting constraint is stated inline where it is most useful. Every clause earns 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?

There is no output schema, so the description need not explain returns, and annotations cover the mutation profile. Still, for a write tool with a parent-reference parameter, it omits how an unknown parent is handled, whether titles must be unique, and what the caller receives back – gaps an agent would hit in practice.

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 high (75%) and the schema already documents parent as 'Top-level parent category (name or id)' and kind as defaulting to the parent's kind. The description reinforces the one-level nesting rule and the optionality of parent, but adds little beyond the schema; baseline 3 is appropriate.

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?

States a specific verb and resource ('Create a category') and adds a scoping constraint ('optionally as a subcategory of a top-level category'). This clearly separates it from create_account, create_transactions, and update_category, though it never names those siblings explicitly.

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?

Usage is implied by the verb 'Create' and the option to nest, which lets an agent infer this is for new categories rather than update_category. However, there is no explicit when-to-use/when-not guidance, no prerequisites, and no mention of what happens if the category already exists.

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