crow_browser_screenshot

Take a screenshot of the current page or a specific element.

SERVERCrow SOURCEkh0pper/crow

High RISK CLASS

Category Execute

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/kh0pper-crow/crow-browser-screenshot.md

WHAT IT DOES

What crow_browser_screenshot does on Crow

AI agents invoke crow_browser_screenshot to trigger actions in Crow. 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.

RISK

Why crow_browser_screenshot is rated High

Taking a screenshot is a browser action that operates on an active browser context. It is not a passive read of stored data but an execution of a browser operation. While it only reads visual output, it requires actively controlling a browser, placing it in the Execute category. Misuse could expose sensitive information visible in the browser, hence medium severity.

From the tool's definition 'Take a screenshot of the current page or a specific element' — triggers a browser action (screenshot capture) that interacts with a live browser session

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs crow_browser_screenshot safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Crow, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For crow_browser_screenshot, this is the rule to start with:

crow_browser_screenshot Rate-limited

crow_browser_screenshot 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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "crow_browser_screenshot": {
      "limits": [
        {
          "counter": "crow_browser_screenshot_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Crow, apply this rule, and every crow_browser_screenshot call is checked against it from then on.

FAQ

Questions about crow_browser_screenshot

What does the crow_browser_screenshot tool do? +

Take a screenshot of the current page or a specific element. It is categorised as a Execute tool in the Crow MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on crow_browser_screenshot? +

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

What risk level is crow_browser_screenshot? +

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

Can I rate-limit crow_browser_screenshot? +

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

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

crow_browser_screenshot is provided by the Crow MCP server (kh0pper/crow). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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