update_user_grants

[DEPRECATED] Update a user\

SERVERLinode MCP Server SOURCEtakashito/linode-mcp-server

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/takashito-linode-mcp-server/update-user-grants.md

WHAT IT DOES

What update_user_grants does on Linode MCP Server

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

RISK

Why update_user_grants is rated Medium

This tool modifies user access permissions and grants, which is a reversible write operation on sensitive security configuration. It could allow an AI agent to elevate privileges or modify access controls if misused. High severity due to security implications of unintended access control changes, though marked DEPRECATED so actual risk may be lower in practice.

From the tool's definition Tool name 'update_user_grants' and description 'Update a user' indicate modification of user permissions/access control settings. The ability to modify user grants is a write operation that affects authentication and authorization state.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_user_grants safely

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

update_user_grants Rate-limited

update_user_grants 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": {
    "update_user_grants": {
      "limits": [
        {
          "counter": "update_user_grants_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 Linode MCP Server, apply this rule, and every update_user_grants call is checked against it from then on.

FAQ

Questions about update_user_grants

What does the update_user_grants tool do? +

[DEPRECATED] Update a user\. It is categorised as a Write tool in the Linode MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_user_grants? +

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

What risk level is update_user_grants? +

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

Can I rate-limit update_user_grants? +

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

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

update_user_grants is provided by the Linode MCP Server MCP server (takashito/linode-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Linode MCP Server, and thousands of servers like it.

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aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

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