get_orders_by_customer_id

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

There are no annotations, so the description carries the burden of behavior. It states the return type 'Dict containing the customer's orders or error information' but does not explicitly mention read-only semantics, pagination, or side effects. While it gives some transparency, more detail would be beneficial.

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 concise, front-loaded with the purpose, and follows a clear structure with Args and Returns sections. No redundant text is present.

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 simple retrieval tool with one parameter, the description covers the core purpose, argument, and return shape. An output schema exists, so return details are presumably available, but the description also mentions 'error information' for completeness. It lacks explicit notes on error behavior or pagination, but these are not critical for this simple 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?

The description explains 'customer_id: The customer ID to search for,' adding meaning to the schema's bare string type. With schema description coverage at 0%, this compensation is necessary and adequately clarifies the parameter's purpose.

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 'Retrieve all orders for a specific customer by ID,' providing a specific verb and resource. It distinguishes from siblings like get_order_by_id by indicating 'all orders' for a customer.

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 usage when a customer ID is available and all orders are needed, but it does not explicitly mention alternatives or when not to use this tool. No exclusions are provided, making the guidance implicit rather than explicit.

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