ebay_find_campaign_by_ad_reference
Find campaign by ad reference through the eBay Marketing API.
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What ebay_find_campaign_by_ad_reference does on Ebay
AI agents call ebay_find_campaign_by_ad_reference to retrieve information from Ebay without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why ebay_find_campaign_by_ad_reference is rated Low
The tool retrieves campaign information based on an ad reference identifier. It queries existing data without creating, modifying, deleting, or executing any operations. The action is read-only, making it a Read category tool with low severity since it only accesses marketing campaign metadata.
From the tool's definition Tool name contains 'find' and description states 'Find campaign by ad reference through the eBay Marketing API' - this is a query/retrieval operation with no side effects.
Attacks that exploit this kind of access
The rule that runs ebay_find_campaign_by_ad_reference 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_find_campaign_by_ad_reference, this is the rule to start with:
ebay_find_campaign_by_ad_reference is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Ebay, apply this rule, and every ebay_find_campaign_by_ad_reference call is checked against it from then on.
Questions about ebay_find_campaign_by_ad_reference
Find campaign by ad reference through the eBay Marketing API. It is categorised as a Read tool in the Ebay MCP Server, which means it retrieves data without modifying state.
Register the Ebay MCP server in PolicyLayer and add a rule for ebay_find_campaign_by_ad_reference: 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.
ebay_find_campaign_by_ad_reference is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ebay_find_campaign_by_ad_reference 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.
Set action: deny in the PolicyLayer policy for ebay_find_campaign_by_ad_reference. 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.
ebay_find_campaign_by_ad_reference 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.
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