harmony_launch_ability

Launch a HarmonyOS ability with an optional module name. Defaults to EntryAbility.

SERVERClaude Mobile SOURCEalexgladkov/claude-in-mobile

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/alexgladkov-claude-in-mobile/harmony-launch-ability.md

WHAT IT DOES

What harmony_launch_ability does on Claude Mobile

AI agents invoke harmony_launch_ability to trigger actions in Claude Mobile. 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 harmony_launch_ability is rated High

Launching abilities executes code on a device with unpredictable side effects based on which ability is invoked.

From the tool's definition Launch a HarmonyOS ability; triggers external app operations whose effects depend on arguments.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs harmony_launch_ability 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 harmony_launch_ability, this is the rule to start with:

harmony_launch_ability Rate-limited

harmony_launch_ability 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": {
    "harmony_launch_ability": {
      "limits": [
        {
          "counter": "harmony_launch_ability_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 Claude Mobile, apply this rule, and every harmony_launch_ability call is checked against it from then on.

FAQ

Questions about harmony_launch_ability

What does the harmony_launch_ability tool do? +

Launch a HarmonyOS ability with an optional module name. Defaults to EntryAbility. It is categorised as a Execute tool in the Claude Mobile MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on harmony_launch_ability? +

Register the Claude Mobile MCP server in PolicyLayer and add a rule for harmony_launch_ability: 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 harmony_launch_ability? +

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

Can I rate-limit harmony_launch_ability? +

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

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

harmony_launch_ability 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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