macos_browser_history
AI agents call macos_browser_history to retrieve information from Velociraptor MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads forensic artifacts (browser history) without modifying or executing code. However, severity is elevated to medium because browser history can contain sensitive personal information (passwords, browsing patterns, authentication tokens), making unauthorized collection a privacy/security concern in misuse scenarios, even though the tool itself performs no destructive or executable actions.
From the tool's definition Tool name 'macos_browser_history' indicates retrieval of browser history data from macOS systems. Description is empty, but the name strongly suggests a read operation querying historical browsing artifacts.
Attacks that exploit this kind of access
macos_browser_history. It is categorised as a Read tool in the Velociraptor MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Velociraptor MCP Server MCP server in PolicyLayer and add a rule for macos_browser_history: 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.
macos_browser_history 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 macos_browser_history 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 macos_browser_history. 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.
macos_browser_history is provided by the Velociraptor MCP Server MCP server (snoe-findley/mcp-velociraptor). 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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