custom-emission-calculation

THE RISK

Low Risk

Why custom-emission-calculation needs a policy

This tool performs a carbon emissions calculation using a specified activity_id and emission factor. It retrieves/computes a result from the Climatiq API without creating, modifying, or deleting any data. It is functionally a query/read operation that returns climate impact insights. No side effects beyond an API read call are indicated.

From the tool's definition "Calculate emissions using any specific emission factor" — performs a calculation/query against the Climatiq API to retrieve an emissions value

Documented attack patterns abuse exactly the kind of access custom-emission-calculation gives an agent:

POLICY

How to control custom-emission-calculation

PolicyLayer is an MCP gateway — it sits between your AI agents and Climatiq MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for custom-emission-calculation:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "custom-emission-calculation": {}
  }
}

custom-emission-calculation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Climatiq MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about custom-emission-calculation

What does the custom-emission-calculation tool do? +

Calculate emissions using any specific emission factor identified by its activity_id, allowing for precise and flexible carbon calculations. It is categorised as a Read tool in the Climatiq MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on custom-emission-calculation? +

Register the Climatiq MCP Server MCP server in PolicyLayer and add a rule for custom-emission-calculation: 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 Climatiq MCP Server. Nothing to install.

What risk level is custom-emission-calculation? +

custom-emission-calculation is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit custom-emission-calculation? +

Yes. Add a rate_limit block to the custom-emission-calculation 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.

How do I block custom-emission-calculation completely? +

Set action: deny in the PolicyLayer policy for custom-emission-calculation. 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.

What MCP server provides custom-emission-calculation? +

custom-emission-calculation is provided by the Climatiq MCP Server MCP server (jagan-shanmugam/climatiq-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Climatiq MCP Server tool call.

Start from Climatiq MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →