AI agents call scan_secret_text to retrieve information from Todos without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a detection/analysis tool that reads input text and returns metadata (counts of detected secrets) without modifying data, executing commands, or exposing sensitive values. It is purely a read operation with built-in safeguards against exposing secrets.
From the tool's definition Tool 'scans text for secret-like values and return counts without exposing values' — it retrieves and analyzes data (reads text) to detect patterns, but performs no write, execute, destructive, or financial operations. Returns counts only, not actual secrets.
Attacks that exploit this kind of access
Scan text for secret-like values and return counts without exposing values. It is categorised as a Read tool in the Todos MCP Server, which means it retrieves data without modifying state.
Register the Todos MCP server in PolicyLayer and add a rule for scan_secret_text: 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 Todos. Nothing to install.
scan_secret_text 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 scan_secret_text 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 scan_secret_text. 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.
scan_secret_text is provided by the Todos MCP server (@hasna/todos). 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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