variables_create

[WRITE] Create a GTM variable. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true.

SERVERSamarth Gtm Mcp SOURCEsamarth-gtm-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/io-github-samarthanalytics-sj-samarth-gtm-mcp/variables-create.md

WHAT IT DOES

What variables_create does on Samarth Gtm Mcp

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

RISK

Why variables_create is rated Medium

This tool creates (not modifies or deletes) GTM variables, which are reversible configuration changes. Creating incorrect variables could affect tracking logic but can be undone by deletion or overwrite. The gating mechanism (explicit flag + confirmation) reduces blast radius.

From the tool's definition Tool name 'variables_create' and description '[WRITE] Create a GTM variable' explicitly indicate creation of new data. The description confirms it requires 'GTM_MCP_ENABLE_WRITES=true and confirm=true', showing this is a gated write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs variables_create safely

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

variables_create Rate-limited

variables_create 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": {
    "variables_create": {
      "limits": [
        {
          "counter": "variables_create_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 Samarth Gtm Mcp, apply this rule, and every variables_create call is checked against it from then on.

FAQ

Questions about variables_create

What does the variables_create tool do? +

[WRITE] Create a GTM variable. Requires GTM_MCP_ENABLE_WRITES=true and confirm=true. It is categorised as a Write tool in the Samarth Gtm Mcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on variables_create? +

Register the Samarth Gtm MCP server in PolicyLayer and add a rule for variables_create: 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 Samarth Gtm Mcp. Nothing to install.

What risk level is variables_create? +

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

Can I rate-limit variables_create? +

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

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

variables_create is provided by the Samarth Gtm MCP server (samarth-gtm-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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