Quick security grade check for an agent skill, plugin, or MCP server.
AI agents call prism_grade to retrieve information from Prism Scanner without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a security assessment lookup that returns a grade (A-F) for scanning purposes. It retrieves existing security grade data without side effects, reversible changes, code execution, data deletion, or financial impact.
From the tool's definition Tool name 'prism_grade' and description 'Quick security grade check for an agent skill, plugin, or MCP server' indicates a read-only operation that retrieves or queries security grade information without modifying any data or triggering external operations.
Attacks that exploit this kind of access
Quick security grade check for an agent skill, plugin, or MCP server. It is categorised as a Read tool in the Prism Scanner MCP Server, which means it retrieves data without modifying state.
Register the Prism Scanner MCP server in PolicyLayer and add a rule for prism_grade: 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 Prism Scanner. Nothing to install.
prism_grade 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 prism_grade 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 prism_grade. 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.
prism_grade is provided by the Prism Scanner MCP server (aidongise-cell/prism-scanner). 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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