AI agents call rc_get_session to retrieve information from Rootcause without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and queries session data without modifying, deleting, or executing any operations. It is a simple read operation used to fetch RCA (root cause analysis) session information, consistent with the Read category pattern of retrieving data without side effects.
From the tool's definition Tool name 'rc_get_session' and description 'Get details of an RCA session by ID' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get details of an RCA session by ID. It is categorised as a Read tool in the Rootcause MCP Server, which means it retrieves data without modifying state.
Register the Rootcause MCP server in PolicyLayer and add a rule for rc_get_session: 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 Rootcause. Nothing to install.
rc_get_session 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 rc_get_session 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 rc_get_session. 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.
rc_get_session is provided by the Rootcause MCP server (u9401066/rootcause-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
rc_get_session is one line of Rootcause's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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