local_ydb_set_root_password

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-set-root-password.md

WHAT IT DOES

What local_ydb_set_root_password does on Local Ydb

AI agents use local_ydb_set_root_password 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_set_root_password is rated Medium

While password changes are reversible (the previous password can be set again), this tool modifies authentication credentials that control access to the entire YDB system. This is a Write operation rather than Destructive because password rotations are inherently reversible.

From the tool's definition Tool explicitly performs password rotation via ALTER USER, synchronizes host auth config, and modifies root password file.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs local_ydb_set_root_password 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_set_root_password, this is the rule to start with:

local_ydb_set_root_password Rate-limited

local_ydb_set_root_password 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_set_root_password": {
      "limits": [
        {
          "counter": "local_ydb_set_root_password_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_set_root_password call is checked against it from then on.

FAQ

Questions about local_ydb_set_root_password

What does the local_ydb_set_root_password tool do? +

Rotate the runtime root password with ALTER USER and sync the host auth config and root password file to match. YDB may reject passwords that violate auth_config.password_complexity; this tool requires a non-empty password value. 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_set_root_password? +

Register the Local Ydb MCP server in PolicyLayer and add a rule for local_ydb_set_root_password: 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_set_root_password? +

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

Can I rate-limit local_ydb_set_root_password? +

Yes. Add a rate_limit block to the local_ydb_set_root_password 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_set_root_password completely? +

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

local_ydb_set_root_password 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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