Rolling mean/std/z-score on weekly forward-filled series.
AI agents call ram_rolling_stats to retrieve information from RAM Prices MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
ram_rolling_stats performs mathematical aggregation and statistical calculations on cached price data. It retrieves and transforms data for analysis but produces no side effects: no data is created, modified, deleted, or committed. The operation is read-only analysis, consistent with the Read category (search, list, get, fetch, and by extension, analytical queries on cached datasets).
From the tool's definition The tool computes rolling statistics (mean, standard deviation, z-score) on existing data series via forward-fill—purely analytical operations that query and derive metrics without modifying, executing external code, deleting, or creating financial…
Attacks that exploit this kind of access
Rolling mean/std/z-score on weekly forward-filled series. It is categorised as a Read tool in the RAM Prices MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RAM Prices MCP Server MCP server in PolicyLayer and add a rule for ram_rolling_stats: 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 RAM Prices MCP Server. Nothing to install.
ram_rolling_stats 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 ram_rolling_stats 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 ram_rolling_stats. 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.
ram_rolling_stats is provided by the RAM Prices MCP Server MCP server (xeonvs/ddr-price-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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