AI agents call rucio_list_dataset_replicas to retrieve information from Rucio without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on the naming convention and context of sibling tools (get_*, list_* patterns indicate read operations while write/destructive operations use add_, delete_, etc.), this tool appears to list or query dataset replica information. No indication of data modification, deletion, or execution of arbitrary operations.
From the tool's definition Tool name contains 'list' which indicates a retrieval operation. The name pattern 'rucio_list_dataset_replicas' suggests querying replica metadata without modification. Description is empty, reducing confidence slightly.
Attacks that exploit this kind of access
rucio_list_dataset_replicas. It is categorised as a Read tool in the Rucio MCP Server, which means it retrieves data without modifying state.
Register the Rucio MCP server in PolicyLayer and add a rule for rucio_list_dataset_replicas: 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 Rucio. Nothing to install.
rucio_list_dataset_replicas 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 rucio_list_dataset_replicas 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 rucio_list_dataset_replicas. 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.
rucio_list_dataset_replicas is provided by the Rucio MCP server (kratsg/rucio-mcp). 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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