update_ad_href · SergeyKrin9/mcp Servers MCP: Risk & Policy

WHAT IT DOES

What update_ad_href does on SergeyKrin9/mcp Servers

AI agents use update_ad_href to create or update resources in SergeyKrin9/mcp Servers — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your SergeyKrin9/mcp Servers environment.

WHY IT NEEDS A POLICY

Why update_ad_href needs a policy

This tool modifies an ad's destination URL (Href) in an advertising platform (Yandex.Direct or Click.ru context). This is a Write operation: it changes data but is reversible—the URL can be updated again or restored. It is not Destructive (the ad still exists), not Execute (doesn't run arbitrary code; just updates a field), and not Financial (doesn't move money, though it affects ad spend).

From the tool's definition Tool name: 'update_ad_href'. Description: 'Update the link (Href) of an existing text ad.' The verb 'Update' combined with 'existing' indicates a modification operation that is reversible.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

update_ad_href Rate-limited

update_ad_href 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_ad_href": {
      "limits": [
        {
          "counter": "update_ad_href_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches SergeyKrin9/mcp Servers, so you can run agents against it safely.

FAQ

Questions about update_ad_href

What does the update_ad_href tool do? +

Update the link (Href) of an existing text ad. It is categorised as a Write tool in the SergeyKrin9/mcp Servers 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_ad_href? +

Register the SergeyKrin9/mcp Servers MCP server in PolicyLayer and add a rule for update_ad_href: 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 SergeyKrin9/mcp Servers. Nothing to install.

What risk level is update_ad_href? +

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

Can I rate-limit update_ad_href? +

Yes. Add a rate_limit block to the update_ad_href 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_ad_href completely? +

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

update_ad_href is provided by the SergeyKrin9/mcp Servers MCP server (sergeykrin9/mcp-servers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.