ebay_launch_campaign
Launch campaign through the eBay Marketing API.
This record as markdown: /tools/yosefhayim-ebay-mcp/ebay-launch-campaign.md
What ebay_launch_campaign does on Ebay
AI agents invoke ebay_launch_campaign to trigger actions in Ebay. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why ebay_launch_campaign is rated High
Launching a marketing campaign on eBay initiates an active advertising campaign that begins incurring costs and running ads. While it has financial implications (ad spend), it is primarily an execution trigger for an external marketing operation. The blast radius is high because an AI agent could inadvertently launch unintended campaigns, potentially causing significant unplanned ad spend and marketplace exposure.
From the tool's definition 'Launch campaign through the eBay Marketing API' — launching a campaign triggers an external operation on eBay's platform that activates ad spend and marketing activity.
Attacks that exploit this kind of access
The rule that runs ebay_launch_campaign 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_launch_campaign, this is the rule to start with:
ebay_launch_campaign stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. 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_launch_campaign call is checked against it from then on.
Questions about ebay_launch_campaign
Launch campaign through the eBay Marketing API. It is categorised as a Execute tool in the Ebay MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Ebay MCP server in PolicyLayer and add a rule for ebay_launch_campaign: 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_launch_campaign is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the ebay_launch_campaign 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_launch_campaign. 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_launch_campaign 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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