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udaykapur

stripe-mcp-server

by udaykapur

Create Coupon

create_coupon

Create a discount coupon for Stripe subscriptions or invoices. Set percentage or fixed amount off, duration, and redemption limits.

Instructions

Create a Stripe coupon for discounts on subscriptions or invoices.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
percent_offNoPercentage discount (use this OR amount_off)
amount_offNoFixed amount discount in smallest currency unit
currencyNoCurrency for amount_off (required if using amount_off)
durationYesHow long the coupon applies
duration_in_monthsNoNumber of months (required when duration is "repeating")
nameNoCoupon display name
max_redemptionsNoMax times this coupon can be redeemed
redeem_byNoUnix timestamp after which coupon can no longer be redeemed
metadataNoMetadata
idempotency_keyNoOptional idempotency key for safe retries
Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states the broad purpose and does not mention idempotency, rate limits, error scenarios, or what happens upon creation (e.g., unique constraints, validation).

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

Conciseness4/5

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

The description is a single, front-loaded sentence with no redundant information. However, it could be structured to include more behavioral or usage context without being verbose.

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

Completeness2/5

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

Given the tool has 10 parameters, no output schema, and involves creating a resource with potential interactions (e.g., linking to subscriptions/invoices), the description lacks details about return value, error handling, and prerequisites, making it incomplete.

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?

The input schema has 100% description coverage for all parameters, so the baseline is 3. The description adds no additional context beyond the schema's parameter descriptions, earning the baseline score.

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 states the verb 'create', the resource 'coupon', and the purpose 'for discounts on subscriptions or invoices', distinguishing it from sibling tools like 'create_subscription' or 'create_invoice'.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives (e.g., using a promotion code or applying a discount directly on an invoice). No explicit 'when not to use' or alternative tool references are given.

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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