snow_discover_table_fields

Discover table schema with fields, types, relationships, and metadata

SERVERSerac SOURCEserac-labs/serac

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/serac/snow-discover-table-fields.md

WHAT IT DOES

What snow_discover_table_fields does on Serac

AI agents call snow_discover_table_fields to retrieve information from Serac without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why snow_discover_table_fields is rated Low

This tool retrieves schema/metadata information about a table — field names, types, relationships. It is purely a read/query operation with no side effects.

From the tool's definition Discover table schema with fields, types, relationships, and metadata

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs snow_discover_table_fields safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Serac, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For snow_discover_table_fields, this is the rule to start with:

snow_discover_table_fields Allowed

snow_discover_table_fields is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Serac, apply this rule, and every snow_discover_table_fields call is checked against it from then on.

FAQ

Questions about snow_discover_table_fields

What does the snow_discover_table_fields tool do? +

Discover table schema with fields, types, relationships, and metadata. It is categorised as a Read tool in the Serac MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on snow_discover_table_fields? +

Register the Serac MCP server in PolicyLayer and add a rule for snow_discover_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 Serac. Nothing to install.

What risk level is snow_discover_table_fields? +

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

Can I rate-limit snow_discover_table_fields? +

Yes. Add a rate_limit block to the snow_discover_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 snow_discover_table_fields completely? +

Set action: deny in the PolicyLayer policy for snow_discover_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 snow_discover_table_fields? +

snow_discover_table_fields is provided by the Serac MCP server (serac-labs/serac). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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