upload_capture_screenshot · Qontinui Web MCP Server MCP

WHAT IT DOES

What upload_capture_screenshot does on Qontinui Web MCP Server

AI agents use upload_capture_screenshot to create or update resources in Qontinui Web MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Qontinui Web MCP Server environment.

WHY IT NEEDS A POLICY

Why upload_capture_screenshot needs a policy

This tool creates or adds screenshot data to an existing capture session, which is a reversible modification. It does not execute arbitrary code, delete data irreversibly, or move money. The medium severity reflects that misuse could pollute or corrupt automation configurations, but the effect is limited to a specific session and reversible.

From the tool's definition Tool name 'upload_capture_screenshot' and description 'Upload a screenshot to a capture session' indicate creation/modification of data within a capture session. The verb 'upload' is characteristic of Write operations that create or add data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

upload_capture_screenshot Rate-limited

upload_capture_screenshot 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": {
    "upload_capture_screenshot": {
      "limits": [
        {
          "counter": "upload_capture_screenshot_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 Qontinui Web MCP Server, so you can run agents against it safely.

FAQ

Questions about upload_capture_screenshot

What does the upload_capture_screenshot tool do? +

Upload a screenshot to a capture session. It is categorised as a Write tool in the Qontinui Web MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on upload_capture_screenshot? +

Register the Qontinui Web MCP Server MCP server in PolicyLayer and add a rule for upload_capture_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 Qontinui Web MCP Server. Nothing to install.

What risk level is upload_capture_screenshot? +

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

Can I rate-limit upload_capture_screenshot? +

Yes. Add a rate_limit block to the upload_capture_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 upload_capture_screenshot completely? +

Set action: deny in the PolicyLayer policy for upload_capture_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 upload_capture_screenshot? +

upload_capture_screenshot is provided by the Qontinui Web MCP Server MCP server (qontinui/qontinui-web-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.