Compute earned value management metrics
AI agents call earned_value_calculator to retrieve information from ContextForge MCP Gateway without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Earned value management is a project management technique that calculates metrics based on input parameters (e.g., planned value, actual cost, actual work performed). The tool computes and returns these metrics without creating, modifying, or deleting underlying data, nor does it execute external commands or commit financial obligations. This is a read operation—it retrieves or derives calculated data.
From the tool's definition The tool name is 'earned_value_calculator' and the description states it 'Compute earned value management metrics.' No modification, deletion, code execution, or financial transaction occurs. It performs a calculation and returns metrics.
Attacks that exploit this kind of access
Compute earned value management metrics. It is categorised as a Read tool in the ContextForge MCP Gateway MCP Server, which means it retrieves data without modifying state.
Register the ContextForge MCP Gateway MCP server in PolicyLayer and add a rule for earned_value_calculator: 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 ContextForge MCP Gateway. Nothing to install.
earned_value_calculator 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 earned_value_calculator 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 earned_value_calculator. 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.
earned_value_calculator is provided by the ContextForge MCP Gateway MCP server (jrmatherly/mcp-context-forge). 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 →