Extract deterministic structured JSON from a page using the camofox-browser structured extraction schema.
AI agents call extract_structured to retrieve information from Camofox without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads and extracts existing data from a webpage into JSON format. Although it operates within a browser automation context, the extraction operation itself is passive and read-only, producing no side effects on the target page or system.
From the tool's definition Tool name and description indicate it "Extract[s] deterministic structured JSON from a page" without modifying or executing operations. No language indicates creation, deletion, or code execution—only data retrieval and parsing.
Documented attack patterns abuse exactly the kind of access extract_structured gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Camofox, and nothing reaches the server without passing your rules. This is the rule we recommend for extract_structured:
{
"version": "1",
"default": "deny",
"tools": {
"extract_structured": {}
}
}extract_structured is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Extract deterministic structured JSON from a page using the camofox-browser structured extraction schema. It is categorised as a Read tool in the Camofox MCP Server, which means it retrieves data without modifying state.
Register the Camofox MCP server in PolicyLayer and add a rule for extract_structured: 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 Camofox. Nothing to install.
extract_structured 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 extract_structured 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 extract_structured. 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.
extract_structured is provided by the Camofox MCP server (redf0x1/camofox-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 47 Camofox tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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47 Camofox tools catalogued and risk-classified — across an index of 42,500+ MCP servers.