local_ydb_create_tenant

SERVERLocal Ydb SOURCE@astandrik/local-ydb-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/local-ydb/local-ydb-create-tenant.md

WHAT IT DOES

What local_ydb_create_tenant does on Local Ydb

AI agents use local_ydb_create_tenant to create or update resources in Local Ydb, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Local Ydb environment.

RISK

Why local_ydb_create_tenant is rated Medium

The tool creates a new tenant resource in a YDB deployment. This is a Write operation because it creates/adds a configuration resource that can be modified or removed. It is not Destructive because tenant creation is reversible (tenants can be deleted).

From the tool's definition Tool description states 'Create the configured CMS tenant' and 'creates nothing' only without confirm=true, indicating it performs a reversible creation operation when executed with confirmation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs local_ydb_create_tenant safely

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

local_ydb_create_tenant Rate-limited

local_ydb_create_tenant stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "local_ydb_create_tenant": {
      "limits": [
        {
          "counter": "local_ydb_create_tenant_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about local_ydb_create_tenant

What does the local_ydb_create_tenant tool do? +

Create the configured CMS tenant when the static node is already running. Use before local_ydb_start_dynamic_node for tenant topologies; without confirm=true this returns the planned status/create command and creates nothing. It is categorised as a Write tool in the Local Ydb MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on local_ydb_create_tenant? +

Register the Local Ydb MCP server in PolicyLayer and add a rule for local_ydb_create_tenant: 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 Local Ydb. Nothing to install.

What risk level is local_ydb_create_tenant? +

local_ydb_create_tenant is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit local_ydb_create_tenant? +

Yes. Add a rate_limit block to the local_ydb_create_tenant 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 local_ydb_create_tenant completely? +

Set action: deny in the PolicyLayer policy for local_ydb_create_tenant. 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 local_ydb_create_tenant? +

local_ydb_create_tenant is provided by the Local Ydb MCP server (@astandrik/local-ydb-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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