Get information about alerting and recording rules
AI agents call get-rules to retrieve information from Prometheus without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves alerting and recording rule information without modifying, executing, or deleting any data. It is a read-only operation that queries Prometheus metadata. The blast radius is minimal—misuse would only expose rule configuration details, not trigger unwanted actions or data loss. Severity is low because rule metadata exposure is informational only.
From the tool's definition Tool name 'get-rules' and description 'Get information about alerting and recording rules' indicate a retrieval operation.
Attacks that exploit this kind of access
Get information about alerting and recording rules. It is categorised as a Read tool in the Prometheus MCP Server, which means it retrieves data without modifying state.
Register the Prometheus MCP server in PolicyLayer and add a rule for get-rules: 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 Prometheus. Nothing to install.
get-rules 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 get-rules 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 get-rules. 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.
get-rules is provided by the Prometheus MCP server (mateusdata/prometheus-mcp-server). 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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