Execute a VQL (Velociraptor Query Language) query on the Velociraptor server. This tool allows you to run custom VQL queries to retrieve information about clients, artifacts, hunts, or any other Velociraptor data. Requires
AI agents invoke RunVQLQueryTool to trigger actions in Velociraptor MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool executes arbitrary VQL queries against a Velociraptor DFIR server. While primarily used for data retrieval, VQL is a turing-complete query language capable of executing code and triggering external operations.
From the tool's definition Execute a VQL (Velociraptor Query Language) query on the Velociraptor server. This tool allows you to run custom VQL queries to retrieve information about clients, artifacts, hunts, or any other Velociraptor data.
Documented attack patterns abuse exactly the kind of access RunVQLQueryTool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Velociraptor MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for RunVQLQueryTool:
{
"version": "1",
"default": "deny",
"tools": {
"RunVQLQueryTool": {
"limits": [
{
"counter": "runvqlquerytool_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}RunVQLQueryTool stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Execute a VQL (Velociraptor Query Language) query on the Velociraptor server. This tool allows you to run custom VQL queries to retrieve information about clients, artifacts, hunts, or any other Velociraptor data. Requires. It is categorised as a Execute tool in the Velociraptor MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Velociraptor MCP Server MCP server in PolicyLayer and add a rule for RunVQLQueryTool: 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 Velociraptor MCP Server. Nothing to install.
RunVQLQueryTool is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the RunVQLQueryTool 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 RunVQLQueryTool. 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.
RunVQLQueryTool is provided by the Velociraptor MCP Server MCP server (socfortress/velociraptor-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Velociraptor MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
11 Velociraptor MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.