Simple regime/change-point detection using z-score on 1-week returns.
AI agents call ram_regime_detect 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.
This is a purely analytical tool that reads and processes cached price series data to detect statistical patterns. It computes z-scores and identifies change-points in returns, which are read-only analytical operations with no side effects, data modification, or external command execution.
From the tool's definition Tool performs 'regime/change-point detection using z-score on 1-week returns' — a statistical analysis operation that examines existing price data to identify patterns and volatility regimes.
Attacks that exploit this kind of access
Simple regime/change-point detection using z-score on 1-week returns. 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_regime_detect: 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_regime_detect 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_regime_detect 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_regime_detect. 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_regime_detect 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.
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