AI agents call check_queue_status to retrieve information from Ebb Ai without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves task queue information and associated metadata (carbon receipts). It has no mutative, destructive, executable, or financial effects. The action is purely informational retrieval, consistent with the 'Read' category. Confidence is high because the description explicitly describes reporting and returning data without any modifications or side effects.
From the tool's definition Tool 'check_queue_status' performs retrieval-only operations: 'Report on the ebb-ai task queue' and 'returns a compact summary' or 'returns full detail' with no side effects.
Attacks that exploit this kind of access
Report on the ebb-ai task queue. With no arguments, returns a compact summary of all known tasks. With task_id, returns full detail for one task including any carbon receipt. It is categorised as a Read tool in the Ebb Ai MCP Server, which means it retrieves data without modifying state.
Register the Ebb Ai MCP server in PolicyLayer and add a rule for check_queue_status: 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 Ebb Ai. Nothing to install.
check_queue_status 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 check_queue_status 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 check_queue_status. 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.
check_queue_status is provided by the Ebb Ai MCP server (vitalini/ebb-ai). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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