get_table_fields

THE RISK

Low Risk

Why get_table_fields needs a policy

The tool queries and returns metadata about table fields—a pure read operation that explores schema structure as described in the server's purpose. It has no capability to modify, delete, or execute operations. The low severity reflects minimal risk from misuse, as field metadata retrieval cannot directly harm data or systems.

From the tool's definition Tool name 'get_table_fields' and description 'Get fields of a specific table' indicate data retrieval with no modification. This aligns with the Read category pattern: retrieves schema structure information without side effects.

Documented attack patterns abuse exactly the kind of access get_table_fields gives an agent:

POLICY

How to control get_table_fields

PolicyLayer is an MCP gateway — it sits between your AI agents and Teable MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_table_fields:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_table_fields": {}
  }
}

get_table_fields is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Teable MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More Teable MCP Server tools

Destructive delete_field Permanently delete a field from a table (all data in this field will be lost) Destructive delete_record Permanently delete a record (all data will be lost). This operation is irreversible. Destructive delete_table Delete a table (moves to trash, recoverable via restore_table_from_trash) Destructive delete_view Delete a view from a table Destructive permanently_delete_table Permanently and irreversibly delete a table. This cannot be undone. The table must already Write share_view Enable or disable public share link for a view. Returns the share URL when enabled. Write comment_on_record Post a comment on a specific record Write create_field Create a new field in a table

All 29 Teable MCP Server tools →

Read tools on other servers

M-Team MCP Server get_torrent_detail YouTube MCP Server search_channel Android Forensics ADB MCP Server parse_browser_history 0xarchive web3_challenge

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_table_fields

What does the get_table_fields tool do? +

Get fields of a specific table. It is categorised as a Read tool in the Teable MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_table_fields? +

Register the Teable MCP Server MCP server in PolicyLayer and add a rule for get_table_fields: 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 Teable MCP Server. Nothing to install.

What risk level is get_table_fields? +

get_table_fields is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_table_fields? +

Yes. Add a rate_limit block to the get_table_fields 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.

How do I block get_table_fields completely? +

Set action: deny in the PolicyLayer policy for get_table_fields. 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.

What MCP server provides get_table_fields? +

get_table_fields is provided by the Teable MCP Server MCP server (ltphat2204/teable-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Teable MCP Server tool call.

Start from Teable MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →