High Risk →

wait_for

Wait for element/text to appear or disappear.

How to control wait_for ↓

What wait_for does on MCP Camoufox

AI agents invoke wait_for to trigger actions in MCP Camoufox. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

High Risk

Why wait_for needs a policy

This is Execute rather than Read because it doesn't merely query state—it actively waits/blocks execution flow based on conditions, orchestrating the timing of subsequent automated actions. In undetectable web automation contexts, this enables coordinated attacks (scraping protected content, bypassing detection).

From the tool's definition wait_for triggers conditional browser operations that depend on runtime element/text states. The tool executes a blocking operation with side effects (pauses execution, monitors DOM/text changes) that control subsequent automation actions.

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

How to control wait_for

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

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "wait_for": {
      "limits": [
        {
          "counter": "wait_for_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

wait_for stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register MCP Camoufox — 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.
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Related tools and policies

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Questions about wait_for

What does the wait_for tool do? +

Wait for element/text to appear or disappear. It is categorised as a Execute tool in the MCP Camoufox MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on wait_for? +

Register the MCP Camoufox MCP server in PolicyLayer and add a rule for wait_for: 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 Camoufox. Nothing to install.

What risk level is wait_for? +

wait_for is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit wait_for? +

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

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

wait_for is provided by the MCP Camoufox MCP server (robithyusuf/mcp-camoufox). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP Camoufox tool call.

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

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102 MCP Camoufox tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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