add_stack_user_to_package

Add a Stack user to a hosting package

SERVER20i MCP Server SOURCEcbrown35/20i-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/cbrown35-20i-mcp/add-stack-user-to-package.md

WHAT IT DOES

What add_stack_user_to_package does on 20i MCP Server

AI agents use add_stack_user_to_package to create or update resources in 20i MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 20i MCP Server environment.

RISK

Why add_stack_user_to_package is rated Medium

This tool creates or modifies access permissions by adding a user to a hosting package. It is a Write operation because it makes reversible changes to resource configuration without deleting data or executing arbitrary code. The severity is medium because misconfiguration could grant unintended access to hosting infrastructure, but the change is auditable and reversible.

From the tool's definition Tool name 'add_stack_user_to_package' and description 'Add a Stack user to a hosting package' indicate creation/modification of user access to hosting resources. The action is reversible (users can be removed).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_stack_user_to_package safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 20i MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_stack_user_to_package, this is the rule to start with:

add_stack_user_to_package Rate-limited

add_stack_user_to_package 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": {
    "add_stack_user_to_package": {
      "limits": [
        {
          "counter": "add_stack_user_to_package_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 20i MCP Server, apply this rule, and every add_stack_user_to_package call is checked against it from then on.

FAQ

Questions about add_stack_user_to_package

What does the add_stack_user_to_package tool do? +

Add a Stack user to a hosting package. It is categorised as a Write tool in the 20i 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 add_stack_user_to_package? +

Register the 20i MCP Server MCP server in PolicyLayer and add a rule for add_stack_user_to_package: 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 20i MCP Server. Nothing to install.

What risk level is add_stack_user_to_package? +

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

Can I rate-limit add_stack_user_to_package? +

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

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

add_stack_user_to_package is provided by the 20i MCP Server MCP server (cbrown35/20i-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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