get_categories

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

Despite no annotations, the description discloses the step-by-step browsing behavior and constraints (only Level 3 IDs are product-compatible). It also gives user interaction advice, which is helpful. Absence of read-only hint is a minor gap but overall good transparency.

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?

Three sentences, each adding distinct value: purpose, hierarchy explanation, and usage guidance. No filler. Front-loaded with the core action 'Browse categories step by step.'

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 navigational tool with no output schema, the description covers the full workflow: how to start, how to drill down, and what IDs to use with the sibling tool. Complete for agent decision-making.

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 100%, but the description adds hierarchical context beyond the schema: it explains the meaning of parent_id and level in terms of Karat/Collection/Style levels, and how they relate to the sibling tool. This adds significant value.

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 'Browse categories step by step' and explains the hierarchical structure (Level 1=Karat, Level 2=Collection, Level 3=Style). It distinguishes from sibling tool get_category_products by noting that only Level 3 IDs work with that tool.

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?

Provides explicit when-to-use guidance: call with no params for Level 1, pass parent_id for children. It also tells when not to use this tool for getting products (only Level 3 works) and advises asking the user for their goal (karat, collection, style).

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