update_sharegroup_image

Update a shared image in a share group

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-sharegroup-image.md

WHAT IT DOES

What update_sharegroup_image does on Linode MCP Server

AI agents use update_sharegroup_image 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_sharegroup_image is rated Medium

This tool modifies (updates) an existing shared image resource, qualifying it as Write category. Severity is high because unauthorized updates to shared images could affect multiple users who depend on that image, potentially corrupting their deployments or exposing sensitive data embedded in the image. The blast radius extends beyond a single user to all share group members relying on that image.

From the tool's definition update_sharegroup_image updates a shared image in a share group, which modifies existing data in Linode's image sharing infrastructure.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_sharegroup_image 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_sharegroup_image, this is the rule to start with:

update_sharegroup_image Rate-limited

update_sharegroup_image 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_sharegroup_image": {
      "limits": [
        {
          "counter": "update_sharegroup_image_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_sharegroup_image call is checked against it from then on.

FAQ

Questions about update_sharegroup_image

What does the update_sharegroup_image tool do? +

Update a shared image in a share group. 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_sharegroup_image? +

Register the Linode MCP Server MCP server in PolicyLayer and add a rule for update_sharegroup_image: 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_sharegroup_image? +

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

Can I rate-limit update_sharegroup_image? +

Yes. Add a rate_limit block to the update_sharegroup_image 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_sharegroup_image completely? +

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

update_sharegroup_image 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.

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