Identify hash types from hash strings (MD5, SHA, bcrypt, NTLM, etc.)
AI agents call hash_identify to retrieve information from Kali MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes metadata about hash strings (determining their type/algorithm) with no side effects, state changes, or external operations. It is purely informational analysis, analogous to a lookup or classification query. Even in a penetration testing context, identifying hash types does not constitute execution, modification, or destruction of data—it merely characterizes input.
From the tool's definition Tool name 'hash_identify' and description 'Identify hash types from hash strings' indicates a query/analysis operation that examines input data without modifying, executing, or deleting anything. It passively classifies cryptographic hashes.
Documented attack patterns abuse exactly the kind of access hash_identify gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kali MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for hash_identify:
{
"version": "1",
"default": "deny",
"tools": {
"hash_identify": {}
}
}hash_identify is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Identify hash types from hash strings (MD5, SHA, bcrypt, NTLM, etc.). It is categorised as a Read tool in the Kali MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kali MCP Server MCP server in PolicyLayer and add a rule for hash_identify: 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 MCP Server. Nothing to install.
hash_identify 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 hash_identify 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 hash_identify. 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.
hash_identify is provided by the Kali MCP Server MCP server (k3nn3dy-ai/kali-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kali MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
36 Kali MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.