Get OVS cart

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

Annotations already declare readOnlyHint, idempotentHint, and non-destructive behavior, but the description adds specific context about what is deliberately omitted (customer and address data). This exceeds the annotation coverage and clarifies the tool's scope, which is valuable for an agent deciding whether this tool meets the needs.

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, succinct sentence that is front-loaded with the core action ('Read the connected account cart') and immediately clarifies the scope. Every word contributes meaning, with no filler or redundancy.

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 tool with zero parameters, an output schema, and comprehensive annotations, the description is fully sufficient. It clarifies the key behavioral nuance (no customer/address data), and the sibling tool names provide enough context to understand the tool's role in the cart workflow.

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?

The tool has zero parameters, so the input schema is empty. Per the rubric, a baseline of 4 applies for zero-parameter tools. The description adds no parameter-related meaning, but none is needed since no parameters exist.

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 uses a specific verb ('Read') and resource ('the connected account cart'), making the purpose unambiguous. It also explicitly excludes customer/address data, which differentiates this read-only cart retrieval from the write operations (add_to_cart, remove_from_cart) and other sibling tools.

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 clear context for when to use the tool: to read the connected account cart. It doesn't explicitly name alternatives or state when not to use it, but the sibling context and the read-only nature make the use case obvious. No exclusions are mentioned.

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