Get a reference of all available Airtable field types and their schemas
AI agents call list_field_types to retrieve information from Airtable MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns reference information about available field type schemas in Airtable. It performs a read-only query with no side effects, no data modification, no deletion, and no code execution. The low severity reflects minimal risk even if an AI agent misuses this tool, as it only exposes static schema metadata.
From the tool's definition Tool name 'list_field_types' and description 'Get a reference of all available Airtable field types and their schemas' indicate a data retrieval operation that queries metadata without modifying, deleting, or executing operations.
Documented attack patterns abuse exactly the kind of access list_field_types gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Airtable MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for list_field_types:
{
"version": "1",
"default": "deny",
"tools": {
"list_field_types": {}
}
}list_field_types is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get a reference of all available Airtable field types and their schemas. It is categorised as a Read tool in the Airtable MCP MCP Server, which means it retrieves data without modifying state.
Register the Airtable MCP server in PolicyLayer and add a rule for list_field_types: 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 Airtable MCP. Nothing to install.
list_field_types 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_field_types 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_field_types. 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_field_types is provided by the Airtable MCP server (rashidazarang/airtable-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 45 Airtable MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
45 Airtable MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.