get_storage_fees

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

No annotations exist, so description must cover transparency. It describes a read-only operation (retrieve fees) but doesn't confirm safety, permissions, or data refresh considerations. Adequate for a simple query but lacks explicit behavioral disclaimers.

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?

Two sentences efficiently convey purpose and outputs. No redundant words, front-loaded with key information.

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?

Description mentions 'by SKU' but the schema lacks a SKU parameter, creating a gap. No output schema exists, so return structure is inferred but not explicit. Sibling tool get_longterm_storage_fees isn't differentiated. Adequate but could clarify filtering and result shape.

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% with both parameters described in the schema. Description adds no extra meaning beyond stating outputs; it doesn't explain date range significance or format caveats. Baseline 3 applies.

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 clearly states the verb 'Get' and resource 'FBA monthly storage fee charges by SKU'. It mentions specific outputs (storage costs, volume, utilization) and distinguishes from siblings like get_longterm_storage_fees by focusing on monthly fees.

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 (e.g., get_longterm_storage_fees). No prerequisites, exclusions, or context about optimal usage are provided.

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