Check if a piece of content contains potential secrets or sensitive information
AI agents call check_secret to retrieve information from Security Scanner MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool analyzes content to detect secrets but does not create, modify, delete, or execute anything. It has no side effects beyond returning analysis results. The blast radius of misuse is minimal—an agent could potentially be fed misleading data about secret detection, but cannot cause harm by invoking the tool itself. Classified as Read with low severity.
From the tool's definition Tool name 'check_secret' and description 'Check if a piece of content contains potential secrets or sensitive information' indicate it performs inspection/analysis without modifying, deleting, or executing code.
Attacks that exploit this kind of access
Check if a piece of content contains potential secrets or sensitive information. It is categorised as a Read tool in the Security Scanner MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Security Scanner MCP Server MCP server in PolicyLayer and add a rule for check_secret: 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 Security Scanner MCP Server. Nothing to install.
check_secret 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 check_secret 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 check_secret. 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.
check_secret is provided by the Security Scanner MCP Server MCP server (rupeedev/security-scanner-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
check_secret is one line of Security Scanner MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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