create_guardrail

Create a guardrail with checks and actions for request filtering. Create it first, then reference it from configs; the new version becomes the policy anchor for downstream use.

SERVERPortkey Admin SOURCEcodeswhat/portkey-admin-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/codeswhat-portkey-admin-mcp/create-guardrail.md

WHAT IT DOES

What create_guardrail does on Portkey Admin

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

RISK

Why create_guardrail is rated Medium

The tool creates and modifies a guardrail policy that becomes an enforced 'policy anchor for downstream use.' This is a Write operation (creates new data/configuration) rather than Read (it modifies system state).

From the tool's definition Tool creates a guardrail with checks and actions for request filtering; description explicitly states 'Create it first, then reference it from configs; the new version becomes the policy anchor for downstream use.' This is a reversible creation/modification…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_guardrail safely

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

create_guardrail Rate-limited

create_guardrail 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": {
    "create_guardrail": {
      "limits": [
        {
          "counter": "create_guardrail_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 Portkey Admin, apply this rule, and every create_guardrail call is checked against it from then on.

FAQ

Questions about create_guardrail

What does the create_guardrail tool do? +

Create a guardrail with checks and actions for request filtering. Create it first, then reference it from configs; the new version becomes the policy anchor for downstream use. It is categorised as a Write tool in the Portkey Admin MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_guardrail? +

Register the Portkey Admin MCP server in PolicyLayer and add a rule for create_guardrail: 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 Portkey Admin. Nothing to install.

What risk level is create_guardrail? +

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

Can I rate-limit create_guardrail? +

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

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

create_guardrail is provided by the Portkey Admin MCP server (codeswhat/portkey-admin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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