Evaluate if prompt generates complete responses covering expected components
AI agents call prompt.measure_completeness 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.
This tool evaluates or queries the completeness of a prompt's responses. It performs an assessment or measurement operation with no side effects—it reads and analyzes data (the prompt and response) but does not create, modify, delete, or execute anything. The action is purely informational/analytical, making it a Read operation with low risk even if misused by an AI agent.
From the tool's definition Tool name 'measure_completeness' and description 'Evaluate if prompt generates complete responses' indicate analysis/evaluation of existing prompts without modification, deletion, or execution of external operations.
Attacks that exploit this kind of access
Evaluate if prompt generates complete responses covering expected components. 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 prompt.measure_completeness: 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.
prompt.measure_completeness 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 prompt.measure_completeness 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 prompt.measure_completeness. 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.
prompt.measure_completeness 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.
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