set_browser · Social Video MCP: Risk & Policy

WHAT IT DOES

What set_browser does on Social Video

AI agents use set_browser to create or update resources in Social Video — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Social Video environment.

WHY IT NEEDS A POLICY

Why set_browser needs a policy

This tool modifies a configuration setting (which browser is used for authentication/cookies), which is a reversible state change. It does not delete data, execute code, or involve financial transactions. The blast radius is low since it only changes which browser the server uses for its authenticated sessions.

From the tool's definition Switch which browser

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

set_browser Rate-limited

set_browser stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_browser": {
      "limits": [
        {
          "counter": "set_browser_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Social Video, so you can run agents against it safely.

FAQ

Questions about set_browser

What does the set_browser tool do? +

Switch which browser. It is categorised as a Write tool in the Social Video MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_browser? +

Register the Social Video MCP server in PolicyLayer and add a rule for set_browser: 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 Social Video. Nothing to install.

What risk level is set_browser? +

set_browser is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_browser? +

Yes. Add a rate_limit block to the set_browser 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 set_browser completely? +

Set action: deny in the PolicyLayer policy for set_browser. 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 set_browser? +

set_browser is provided by the Social Video MCP server (ronantakizawa/social-video-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.