AI agents call get_today_prices to retrieve information from Elpriser without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only queries and returns electricity pricing information without any side effects, modifications to system state, or irreversible actions. It is a straightforward data retrieval function similar to its sibling tools (get_current_price, get_price_forecast) which are all informational in nature.
From the tool's definition Tool retrieves hourly electricity price data for a specified date and price zone. Description indicates it 'Get[s] all 24 hourly electricity prices' with no indication of modification, deletion, or execution capability.
Attacks that exploit this kind of access
Get all 24 hourly electricity prices for a given date (default: today) in a price zone. Use for. It is categorised as a Read tool in the Elpriser MCP Server, which means it retrieves data without modifying state.
Register the Elpriser MCP server in PolicyLayer and add a rule for get_today_prices: 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 Elpriser. Nothing to install.
get_today_prices 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_today_prices 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_today_prices. 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_today_prices is provided by the Elpriser MCP server (x2q/elpriser-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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