update_prompt

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/update-prompt.md

WHAT IT DOES

What update_prompt does on Portkey Admin

AI agents use update_prompt 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 update_prompt is rated Medium

The tool modifies existing prompts by updating specified fields and creating archived versions. This is a Write operation—data is being changed but the action is reversible (prior versions are archived, not destroyed). The severity is medium because incorrect prompt updates could affect AI model behavior and outputs, but the impact is limited to prompts and can be corrected by reverting to archived versions.

From the tool's definition Tool description states 'Update an existing prompt and create a new archived version' with 'Only provided fields change', indicating reversible modification of data.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

update_prompt Rate-limited

update_prompt 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_prompt": {
      "limits": [
        {
          "counter": "update_prompt_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 update_prompt call is checked against it from then on.

FAQ

Questions about update_prompt

What does the update_prompt tool do? +

Update an existing prompt and create a new archived version. Only provided fields change, and publish_prompt is what makes the new version active. For multi-message chat prompts pass messages (preferred) or a JSON-encoded array as string. 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 update_prompt? +

Register the Portkey Admin MCP server in PolicyLayer and add a rule for update_prompt: 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 update_prompt? +

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

Can I rate-limit update_prompt? +

Yes. Add a rate_limit block to the update_prompt 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_prompt completely? +

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

update_prompt 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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