app_click · Claude Pascal MCP Server MCP: Risk & Policy

WHAT IT DOES

What app_click does on Claude Pascal MCP Server

AI agents invoke app_click to trigger actions in Claude Pascal MCP Server. 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.

THE RISK

High Risk

Why app_click needs a policy

Based on the server context (GUI automation, ADB interaction) and the tool name 'app_click', this tool most likely triggers a click action on a UI element in a desktop or Android application. Clicking is an external operation that can trigger arbitrary application behavior. The empty description lowers confidence, but the Execute category fits best given the automation context.

From the tool's definition Tool name 'app_click' on a server that performs GUI automation and Android device interaction via ADB; description is empty.

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

POLICY

How to control app_click

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

policy.json

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

app_click 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.

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

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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All 53 Claude Pascal MCP Server tools →

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Go deeper

High-risk tools in Claude Pascal MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about app_click

What does the app_click tool do? +

app_click. It is categorised as a Execute tool in the Claude Pascal MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on app_click? +

Register the Claude Pascal MCP Server MCP server in PolicyLayer and add a rule for app_click: 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 Claude Pascal MCP Server. Nothing to install.

What risk level is app_click? +

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

Can I rate-limit app_click? +

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

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

app_click is provided by the Claude Pascal MCP Server MCP server (tina4stack/claude-pascal-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Claude Pascal MCP Server tool call.

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

CHECK YOUR STACK →

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53 Claude Pascal MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.