system_is_running

Check whether an app process is currently running by package name (Android only). Returns

SERVERClaude Mobile SOURCEalexgladkov/claude-in-mobile

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/alexgladkov-claude-in-mobile/system-is-running.md

WHAT IT DOES

What system_is_running does on Claude Mobile

AI agents call system_is_running to retrieve information from Claude Mobile without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why system_is_running is rated Low

The tool performs a non-destructive information retrieval operation (checking process state) with no side effects, data modifications, or external impacts. It fits the Read category definition: retrieves or queries data with no side effects. Low severity because misuse (querying whether apps are running) poses minimal risk.

From the tool's definition Tool checks/queries the running state of an app process without modifying anything. Description states 'Check whether an app process is currently running' — a read-only query operation.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs system_is_running safely

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

system_is_running Allowed

system_is_running is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "system_is_running": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about system_is_running

What does the system_is_running tool do? +

Check whether an app process is currently running by package name (Android only). Returns. It is categorised as a Read tool in the Claude Mobile MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on system_is_running? +

Register the Claude Mobile MCP server in PolicyLayer and add a rule for system_is_running: 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 Mobile. Nothing to install.

What risk level is system_is_running? +

system_is_running is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit system_is_running? +

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

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

system_is_running is provided by the Claude Mobile MCP server (alexgladkov/claude-in-mobile). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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