AI agents call sherlock_search to retrieve information from Kali Security MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Sherlock is a reconnaissance tool that searches for usernames across social media and public databases. This is fundamentally a Read operation—it queries external services and retrieves publicly available information without modifying, executing, or deleting anything.
From the tool's definition Tool name 'sherlock_search' typically refers to username/email search functionality (from the Sherlock OSINT tool in Kali Linux). No description provided, so classification is based on standard tool behavior and naming convention.
Documented attack patterns abuse exactly the kind of access sherlock_search gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kali Security MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for sherlock_search:
{
"version": "1",
"default": "deny",
"tools": {
"sherlock_search": {}
}
}sherlock_search is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
sherlock_search. It is categorised as a Read tool in the Kali Security MCP MCP Server, which means it retrieves data without modifying state.
Register the Kali Security MCP server in PolicyLayer and add a rule for sherlock_search: 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 Kali Security MCP. Nothing to install.
sherlock_search 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 sherlock_search 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 sherlock_search. 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.
sherlock_search is provided by the Kali Security MCP server (seac-25/kali-security-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 249 Kali Security MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
249 Kali Security MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.