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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds nothing beyond that: it does not say whether the category is created at top level or within a section, whether slug/position are auto-assigned, or what happens on name collision. With annotations present, this thin addition earns only a 2.

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 or redundancy. It is efficient, though so terse that it leaves obvious questions unaddressed rather than being a model of well-structured guidance.

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?

For a simple four-parameter create tool with full schema coverage, no nested objects, and annotations covering the safety profile, the description is minimally sufficient. It omits any note on hierarchy (section_id relationship), slug generation, or ordering behavior, which an agent would need to invoke it confidently.

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 all four parameters (name, slug, position, section_id) are already documented in the schema. The description adds no syntax, defaults, or format details beyond that, making the baseline 3 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 (Create) and resource (category in the workspace Help Center), which distinguishes it from kb_create_article and kb_create_section by resource type. However, it does not explicitly contrast itself with siblings such as kb_update_category or kb_list_categories, so it falls short of a 5.

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 gives no indication of when to use this tool versus alternatives like kb_update_category or kb_create_section, nor any prerequisites (e.g., whether a section must exist first). It is purely a statement of action with no routing guidance.

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