slack_get_user_profile

THE RISK

Low Risk

Why slack_get_user_profile needs a policy

This tool performs a query operation to fetch user profile data from Slack. It retrieves information without creating, modifying, deleting, or executing any operations. The verb 'Get' and the absence of any mention of state-changing actions clearly indicate a Read category with low severity, as it only accesses existing data.

From the tool's definition Tool name 'slack_get_user_profile' combined with description 'Get detailed profile information for a specific user' indicates retrieval of data with no modifications or side effects.

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

POLICY

How to control slack_get_user_profile

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "slack_get_user_profile": {}
  }
}

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

Create a free account and register MCP-Brave-Search — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
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FAQ

Questions about slack_get_user_profile

What does the slack_get_user_profile tool do? +

Get detailed profile information for a specific user. It is categorised as a Read tool in the MCP-Brave-Search MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on slack_get_user_profile? +

Register the MCP-Brave-Search MCP server in PolicyLayer and add a rule for slack_get_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 MCP-Brave-Search. Nothing to install.

What risk level is slack_get_user_profile? +

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

Can I rate-limit slack_get_user_profile? +

Yes. Add a rate_limit block to the slack_get_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 slack_get_user_profile completely? +

Set action: deny in the PolicyLayer policy for slack_get_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 slack_get_user_profile? +

slack_get_user_profile is provided by the MCP-Brave-Search MCP server (modelcontextprotocol/servers-archived). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-Brave-Search tool call.

Start from MCP-Brave-Search, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →