update_shipping_option

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

No annotations are provided, so the description must disclose behavioral traits. It does not specify whether updates are partial or full, what happens to omitted fields, or any error conditions. The requirement for an API key is mentioned, but authorization details beyond that are missing.

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 a single useful sentence with a second short sentence about the API key. No wasted words.

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 mutation tool with 6 parameters, no output schema, and no annotations, the description lacks details on return values, error handling, and update semantics (e.g., partial vs full update). It is insufficient for an agent to safely invoke the tool.

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 baseline is 3. The description does not add significant meaning beyond the schema; it only repeats the concept of updating and adds the API key requirement.

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?

Clearly states it updates an existing shipping option in a specific store (Karrito), distinguishing it from sibling tools like create_shipping_option and delete_shipping_option.

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?

Mentions the required KARRITO_API_KEY environment variable, which is a necessary precondition, but does not provide explicit guidance on when to use this tool versus alternatives (e.g., create_shipping_option for creation, list_shipping_options for reading).

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