list_blocked_phones
List blocked phone numbers (e.g. blacklisted customers).
This record as markdown: /tools/webcake-storefront/list-blocked-phones.md
What list_blocked_phones does on Webcake Storefront
AI agents call list_blocked_phones to retrieve information from Webcake Storefront without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_blocked_phones is rated Low
The tool performs a read-only query to retrieve blocked phone numbers. It does not create, modify, delete, execute code, or commit financial transactions. The blast radius of misuse is minimal — an attacker gains visibility into blocked customer data but cannot alter blocking rules or other system state.
From the tool's definition Tool name is 'list_blocked_phones' and description states 'List blocked phone numbers' — this is a retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs list_blocked_phones safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Webcake Storefront, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_blocked_phones, this is the rule to start with:
list_blocked_phones is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Webcake Storefront, apply this rule, and every list_blocked_phones call is checked against it from then on.
Questions about list_blocked_phones
List blocked phone numbers (e.g. blacklisted customers). It is categorised as a Read tool in the Webcake Storefront MCP Server, which means it retrieves data without modifying state.
Register the Webcake Storefront MCP server in PolicyLayer and add a rule for list_blocked_phones: 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 Webcake Storefront. Nothing to install.
list_blocked_phones 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 list_blocked_phones 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 list_blocked_phones. 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.
list_blocked_phones is provided by the Webcake Storefront MCP server (webcake-storefront-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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