Retrieve ESG scores (Environment, Social, Governance), carbon emission data, and stewardship ratings.
AI agents call get_esg_metrics to retrieve information from Northern Trust MCP Layer without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries ESG (Environmental, Social, Governance) data and related metrics. The use of 'Retrieve' and the absence of any modification, deletion, or execution language confirms this is a Read operation. While it provides financial data via a financial services server, the tool itself performs no financial transactions, movements of money, or irreversible changes.
From the tool's definition Tool name 'get_esg_metrics' and description 'Retrieve ESG scores...carbon emission data, and stewardship ratings' indicate data retrieval with no mutation or side effects.
Attacks that exploit this kind of access
Retrieve ESG scores (Environment, Social, Governance), carbon emission data, and stewardship ratings. It is categorised as a Read tool in the Northern Trust MCP Layer MCP Server, which means it retrieves data without modifying state.
Register the Northern Trust MCP Layer MCP server in PolicyLayer and add a rule for get_esg_metrics: 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 Northern Trust MCP Layer. Nothing to install.
get_esg_metrics 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_esg_metrics 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_esg_metrics. 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_esg_metrics is provided by the Northern Trust MCP Layer MCP server (vbzvibin/mcp_v3). 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.
Teams ship this data inside their own products. See what a licence covers →