stateset_apply_checkout_coupon
Applies a coupon code to a checkout session. Validates the coupon and applies any applicable discounts.
This record as markdown: /tools/stateset-mcp-server/stateset-apply-checkout-coupon.md
What stateset_apply_checkout_coupon does on Stateset
AI agents use stateset_apply_checkout_coupon to create or update resources in Stateset, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Stateset environment.
Why stateset_apply_checkout_coupon is rated Medium
This tool modifies checkout state by applying a coupon/discount, which changes the cart or order data reversibly. While it affects pricing and financial outcomes, it does not directly move money or commit financial obligations—it only modifies transaction data before payment. This is a Write operation (modifies data reversibly) rather than Financial (which requires actual money movement).
From the tool's definition Applies a coupon code to a checkout session. Validates the coupon and applies any applicable discounts.
Attacks that exploit this kind of access
The rule that runs stateset_apply_checkout_coupon safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Stateset, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For stateset_apply_checkout_coupon, this is the rule to start with:
stateset_apply_checkout_coupon stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Stateset, apply this rule, and every stateset_apply_checkout_coupon call is checked against it from then on.
Questions about stateset_apply_checkout_coupon
Applies a coupon code to a checkout session. Validates the coupon and applies any applicable discounts. It is categorised as a Write tool in the Stateset MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Stateset MCP server in PolicyLayer and add a rule for stateset_apply_checkout_coupon: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Stateset. Nothing to install.
stateset_apply_checkout_coupon is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the stateset_apply_checkout_coupon rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for stateset_apply_checkout_coupon. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
stateset_apply_checkout_coupon is provided by the Stateset MCP server (stateset/stateset-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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