Signal 4: UK electricity generation mix from Carbon Intensity API.
AI agents call get_uk_generation_mix to retrieve information from SIGNALS Market Readiness MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves current or historical electricity generation mix data (e.g., percentage of power from coal, gas, renewables) from a public API. It is a passive data query with no side effects, no code execution, no data modification, and no financial impact. It falls squarely into the Read category.
From the tool's definition Tool name 'get_uk_generation_mix' and description 'Signal 4: UK electricity generation mix from Carbon Intensity API' indicate a read-only query operation that retrieves public energy market data without modifying, executing, or deleting anything.
Attacks that exploit this kind of access
Signal 4: UK electricity generation mix from Carbon Intensity API. It is categorised as a Read tool in the SIGNALS Market Readiness MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SIGNALS Market Readiness MCP Server MCP server in PolicyLayer and add a rule for get_uk_generation_mix: 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 SIGNALS Market Readiness MCP Server. Nothing to install.
get_uk_generation_mix 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_uk_generation_mix 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_uk_generation_mix. 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_uk_generation_mix is provided by the SIGNALS Market Readiness MCP Server MCP server (markloveridge-rex/signals-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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