AI agents call http_check to retrieve information from Idig Dns without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a diagnostic tool that queries HTTP/HTTPS endpoints and inspects responses. It retrieves information about server status and configuration without modifying anything, executing arbitrary code, or triggering state changes. It aligns with the Read category pattern of other sibling tools (dns_lookup, diagnose, etc.) on this DNS diagnostics server.
From the tool's definition Tool performs HTTP/HTTPS reachability checks that retrieve and analyze status codes, redirect chains, and headers (HSTS).
Attacks that exploit this kind of access
HTTP/HTTPS reachability: status codes, redirect chain, HSTS header, HTTP→HTTPS redirect detection. It is categorised as a Read tool in the Idig Dns MCP Server, which means it retrieves data without modifying state.
Register the Idig Dns MCP server in PolicyLayer and add a rule for http_check: 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 Idig Dns. Nothing to install.
http_check 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 http_check 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 http_check. 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.
http_check is provided by the Idig Dns MCP server (https://mcp.softricks.net/sse). 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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