ebay_update_negative_keyword

Update negative keyword through the eBay Marketing API.

SERVEREbay SOURCEyosefhayim/ebay-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/yosefhayim-ebay-mcp/ebay-update-negative-keyword.md

WHAT IT DOES

What ebay_update_negative_keyword does on Ebay

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

RISK

Why ebay_update_negative_keyword is rated Medium

This tool modifies negative keyword settings in eBay marketing campaigns, which is a write operation that changes campaign configuration data. It's reversible (keywords can be updated again or removed), so it doesn't qualify as Destructive. It doesn't execute arbitrary code or trigger financial transactions.

From the tool's definition Tool name 'ebay_update_negative_keyword' and description 'Update negative keyword through the eBay Marketing API' indicate modification of marketing campaign settings.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ebay_update_negative_keyword safely

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

ebay_update_negative_keyword Rate-limited

ebay_update_negative_keyword 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": {
    "ebay_update_negative_keyword": {
      "limits": [
        {
          "counter": "ebay_update_negative_keyword_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 Ebay, apply this rule, and every ebay_update_negative_keyword call is checked against it from then on.

FAQ

Questions about ebay_update_negative_keyword

What does the ebay_update_negative_keyword tool do? +

Update negative keyword through the eBay Marketing API. It is categorised as a Write tool in the Ebay MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ebay_update_negative_keyword? +

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

What risk level is ebay_update_negative_keyword? +

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

Can I rate-limit ebay_update_negative_keyword? +

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

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

ebay_update_negative_keyword is provided by the Ebay MCP server (yosefhayim/ebay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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Guides

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