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get_promo_code

Fetch complete details of a promo code by its ID to review discount parameters, usage limits, and expiration.

Instructions

Get detailed information about a specific promo code by its ID.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
promo_code_idYesThe promo code ID (e.g. promo_xxxx).
Behavior3/5

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

With no annotations, the description carries full burden. It indicates a read operation ('Get detailed information') but does not disclose any behavioral traits such as authentication needs, rate limits, or side effects. It is adequate for a simple get but lacks depth.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence that contains all necessary information. No wasted words, and the key action and resource are front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple get tool with one parameter and no output schema, the description is fairly complete. It could mention that it returns detailed information or include a brief note about the return format, but it is sufficient for an agent to understand the basic purpose.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with one parameter well-described. The description adds the example format 'promo_xxxx' but the schema already states 'e.g. promo_xxxx'. Thus the description adds minimal meaning beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly specifies the action ('Get'), the resource ('detailed information about a specific promo code'), and the identifier ('by its ID'). It distinguishes from sibling tools like create_promo_code, delete_promo_code, list_promo_codes.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when a specific promo code ID is known, but does not explicitly state when to use it versus alternatives like list_promo_codes, or provide any exclusions or context.

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

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