get_product

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

No annotations are provided, so the description carries the burden. It explicitly says "Read," indicating a non-destructive operation, and specifies a positive numeric ID constraint. However, it does not disclose behavior for missing/invalid IDs, authentication requirements, or return format nuances, leaving gaps beyond the basic read action.

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, front-loaded sentence with no wasted words. It immediately communicates the tool's purpose and key constraint.

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?

The tool is simple with one parameter and an output schema that likely covers return values. The description is largely sufficient, but it does not mention what happens when the product ID does not exist (e.g., error vs. null), which would make it fully complete.

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 schema only defines product_id as an integer with no description (0% coverage). The description adds meaningful semantics: "positive numeric ID" implies a validation constraint and clarifies the parameter's role as an identifier. This exceeds what the bare schema provides.

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 "Read one product by its positive numeric ID" clearly states the verb (Read), resource (product), and scope (one product by ID). It distinguishes from siblings like list_products (multiple), create_product, update_product, and delete_product (mutations).

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 implies the usage context: use when you have a product ID and need a single product. It does not explicitly name alternatives or exclusions, but the contrast with list_products and mutation tools is clear from the wording and sibling context.

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