Get Category

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

The description adds the constraint '[1 API call]' which provides useful context about efficiency/rate limits beyond the readOnlyHint annotation. However, it doesn't describe other behavioral aspects like error conditions, response format, or whether it returns nested data. With annotations covering safety, this adds some value but not rich behavioral context.

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 extremely concise (one sentence plus API call note) with zero wasted words. It's front-loaded with the core purpose and efficiently includes the API call constraint without unnecessary elaboration.

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 read-only tool with good annotations and full schema coverage, the description is minimally adequate. However, without an output schema, it should ideally describe what 'details' include or the response structure. The API call note helps but doesn't fully compensate for missing output information.

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 schema already fully documents both parameters (budget_id and category_id). The description doesn't add any parameter-specific information beyond what's in the schema, so it meets the baseline for high schema coverage.

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 the tool's purpose with a specific verb ('Get details') and resource ('a single category'), making it immediately understandable. However, it doesn't explicitly differentiate from sibling tools like 'list_categories' or 'get_month_category', which would have required 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 provides no guidance on when to use this tool versus alternatives like 'list_categories' (for multiple categories) or 'get_month_category' (for category data in a specific month). It mentions '[1 API call]' which hints at efficiency but doesn't clarify usage context or prerequisites.

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