Get field mappings and data types for a catalog
AI agents call get_catalog_field_mappings to retrieve information from Iterable 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 metadata about catalog field mappings and their data types. It performs a query operation with no side effects, no data modification, no code execution, and no irreversible actions. The read-only nature is evident from the 'get_' pattern and the descriptive verb 'Get' combined with the informational nature of 'field mappings and data types'.
From the tool's definition Tool name contains 'get_' prefix and description states 'Get field mappings and data types' - both indicate pure data retrieval with no modification or execution of operations.
Documented attack patterns abuse exactly the kind of access get_catalog_field_mappings gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Iterable MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_catalog_field_mappings:
{
"version": "1",
"default": "deny",
"tools": {
"get_catalog_field_mappings": {}
}
} get_catalog_field_mappings is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get field mappings and data types for a catalog. It is categorised as a Read tool in the Iterable MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Iterable MCP Server MCP server in PolicyLayer and add a rule for get_catalog_field_mappings: 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 Iterable MCP Server. Nothing to install.
get_catalog_field_mappings 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 get_catalog_field_mappings 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 get_catalog_field_mappings. 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.
get_catalog_field_mappings is provided by the Iterable MCP Server MCP server (iterable/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Iterable MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
78 Iterable MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.