AI agents call rucio_get_rse_protocols 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.
This tool retrieves and lists metadata about RSE (Rucio Storage Element) capabilities. It performs a read-only query to discover available transfer protocols, with no ability to modify, delete, or execute operations. The blast radius if misused by an AI agent is minimal, as it only returns informational data about storage infrastructure configuration.
From the tool's definition Tool name 'rucio_get_rse_protocols' uses 'get' verb and description states 'List the transfer protocols supported by an RSE' — a pure query operation with no data modification or side effects.
Attacks that exploit this kind of access
List the transfer protocols supported by an RSE. 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_get_rse_protocols: 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_get_rse_protocols 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_get_rse_protocols 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_get_rse_protocols. 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_get_rse_protocols 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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