Low Risk

build_user_profile

Builds comprehensive user profile with equity, cash, and dividend totals.

How to control build_user_profile ↓

What build_user_profile does on Open Stocks MCP

AI agents call build_user_profile to retrieve information from Open Stocks MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why build_user_profile needs a policy

The tool aggregates and computes a summary of the user's financial data (equity, cash, dividends) without modifying any state. It reads and consolidates existing account information into a profile view. No write, execute, destructive, or financial transaction operations are indicated.

From the tool's definition Builds comprehensive user profile with equity, cash, and dividend totals

Documented attack patterns abuse exactly the kind of access build_user_profile gives an agent:

How to control build_user_profile

PolicyLayer is an MCP gateway — it sits between your AI agents and Open Stocks MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for build_user_profile:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "build_user_profile": {}
  }
}

build_user_profile is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Open Stocks MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CAP THIS TOOL →

Free to start. No card required.

Related tools and policies

Go deeper

Questions about build_user_profile

What does the build_user_profile tool do? +

Builds comprehensive user profile with equity, cash, and dividend totals. It is categorised as a Read tool in the Open Stocks MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on build_user_profile? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for build_user_profile: 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 Open Stocks MCP. Nothing to install.

What risk level is build_user_profile? +

build_user_profile is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit build_user_profile? +

Yes. Add a rate_limit block to the build_user_profile 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.

How do I block build_user_profile completely? +

Set action: deny in the PolicyLayer policy for build_user_profile. 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.

What MCP server provides build_user_profile? +

build_user_profile is provided by the Open Stocks MCP server (open-agent-tools/open-stocks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Open Stocks MCP tool call.

Start from Open Stocks MCP, 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.

152 Open Stocks MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

// GET IN TOUCH

Have a question or want to learn more? Send us a message.

Message sent.

We'll get back to you soon.