AI agents call scan_file_for_secrets 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 tool performs a read-only operation: it examines file contents to detect patterns (secrets) but does not modify, delete, or execute anything. It is a preventative security check that queries/analyzes local file data. The blast radius of misuse is minimal—at worst, an agent might scan the wrong file and report false positives, but no data is altered, deleted, or exposed by the tool itself.
From the tool's definition Tool name is 'scan_file_for_secrets' and description states it 'Scan[s] a local file for secret patterns before release or export.' The verb 'scan' indicates data retrieval and analysis without modification or execution of external commands.
Attacks that exploit this kind of access
Scan a local file for secret patterns before release or export. 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_file_for_secrets: 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_file_for_secrets 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_file_for_secrets 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_file_for_secrets. 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_file_for_secrets 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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