AI agents call cap_sample_data to retrieve information from Sflight without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays data without side effects. It returns sample rows and schema information for inspection purposes only, consistent with the Read category (search, list, get, fetch operations). The blast radius is minimal—viewing sample data poses no risk of data loss, corruption, or unintended operations.
From the tool's definition Tool description states 'Preview sample rows from any entity in the database. Shows column names and actual data values.' The verb 'preview' and action of displaying sample data indicates read-only retrieval with no modification or deletion.
Attacks that exploit this kind of access
Preview sample rows from any entity in the database. Shows column names and actual data values. It is categorised as a Read tool in the Sflight MCP Server, which means it retrieves data without modifying state.
Register the Sflight MCP server in PolicyLayer and add a rule for cap_sample_data: 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 Sflight. Nothing to install.
cap_sample_data 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 cap_sample_data 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 cap_sample_data. 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.
cap_sample_data is provided by the Sflight MCP server (mindsetconsulting/sflight-mcp). 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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