Fetch current offers and promotions from Willys using session-based authentication.
AI agents call mcp__willys_get_offers to retrieve information from Willys MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves publicly or user-accessible promotional information from Willys without creating, modifying, or deleting any data. It has no side effects and poses minimal risk if misused by an AI agent — the worst outcome would be displaying incorrect or outdated offers to a user. No financial, destructive, or execution risks are present.
From the tool's definition Tool description states "Fetch current offers and promotions" — a retrieval operation with no modification of data. Sibling tools confirm context: add_to_cart (Write), checkout (Financial), and get_* variants (Read operations).
Attacks that exploit this kind of access
Fetch current offers and promotions from Willys using session-based authentication. It is categorised as a Read tool in the Willys MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Willys MCP Server MCP server in PolicyLayer and add a rule for mcp__willys_get_offers: 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 Willys MCP Server. Nothing to install.
mcp__willys_get_offers is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the mcp__willys_get_offers 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 mcp__willys_get_offers. 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.
mcp__willys_get_offers is provided by the Willys MCP Server MCP server (jimmystridh/willys-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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