update_api_comment

Update an existing API comment (max 10,000 characters)

SERVERPostman SOURCEdelano/postman-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/delano-postman-mcp-server/update-api-comment.md

WHAT IT DOES

What update_api_comment does on Postman

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

RISK

Why update_api_comment is rated Medium

This tool modifies comment data within Postman, which is a reversible write operation. It affects only metadata/documentation (a comment on an API), not executable code or destructive operations. The low severity reflects that comment updates have minimal blast radius and do not alter API functionality, infrastructure, or data integrity.

From the tool's definition Tool name is 'update_api_comment' and description states 'Update an existing API comment', indicating modification of existing metadata/documentation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_api_comment safely

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

update_api_comment Rate-limited

update_api_comment 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_api_comment": {
      "limits": [
        {
          "counter": "update_api_comment_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 Postman, apply this rule, and every update_api_comment call is checked against it from then on.

FAQ

Questions about update_api_comment

What does the update_api_comment tool do? +

Update an existing API comment (max 10,000 characters). It is categorised as a Write tool in the Postman 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_api_comment? +

Register the Postman MCP server in PolicyLayer and add a rule for update_api_comment: 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 Postman. Nothing to install.

What risk level is update_api_comment? +

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

Can I rate-limit update_api_comment? +

Yes. Add a rate_limit block to the update_api_comment 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_api_comment completely? +

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

update_api_comment is provided by the Postman MCP server (delano/postman-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

What update_api_comment does on Postman

Why update_api_comment is rated Medium

The rule that runs update_api_comment safely

Questions about update_api_comment

More on Postman, and thousands of servers like it.