install_app

Install a Nextcloud app from the App Store via occ app:install

SERVERAIquila — Nextcloud MCP Server SOURCEelgorro/aiquila

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/aiquila-nextcloud-mcp-server/install-app.md

WHAT IT DOES

What install_app does on AIquila — Nextcloud MCP Server

AI agents invoke install_app to trigger actions in AIquila — Nextcloud 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.

RISK

Why install_app is rated High

This tool executes a system-level command (occ app:install) that installs software on the Nextcloud server. Running arbitrary app installations can introduce new code, change server behavior, and expand the attack surface significantly. It is an Execute-category action (running an external system command), with high severity due to the blast radius of installing potentially malicious or unstable apps on a server.

From the tool's definition Install a Nextcloud app from the App Store via occ app:install

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs install_app safely

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

install_app Rate-limited

install_app 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": {
    "install_app": {
      "limits": [
        {
          "counter": "install_app_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 AIquila — Nextcloud MCP Server, apply this rule, and every install_app call is checked against it from then on.

FAQ

Questions about install_app

What does the install_app tool do? +

Install a Nextcloud app from the App Store via occ app:install. It is categorised as a Execute tool in the AIquila — Nextcloud 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 install_app? +

Register the AIquila — Nextcloud MCP Server MCP server in PolicyLayer and add a rule for install_app: 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 AIquila — Nextcloud MCP Server. Nothing to install.

What risk level is install_app? +

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

Can I rate-limit install_app? +

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

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

install_app is provided by the AIquila — Nextcloud MCP Server MCP server (elgorro/aiquila). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on AIquila — Nextcloud MCP Server, and thousands of servers like it.

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disable_passenger_app on cPanel MCP Server → All high-risk MCP tools → The MCP Attack Database →

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