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 21 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.

Parameter	Type	Required	Description
`appId`	string	Yes	App ID to install (e.g. "tasks", "calendar", "mail")
`keepDisabled`	boolean	—	Install but keep the app disabled

Parameters from the server's own tool schema.

RISK

Why install_app is rated High

This tool executes a system-level command (occ app:install) that installs software on the Nextcloud server. This is an Execute category action with high severity because it runs external commands that modify the server environment, could introduce malicious or vulnerable software, and has wide blast radius if misused by an AI agent.

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.

What parameters does install_app accept? +

install_app accepts 2 parameters: appId, keepDisabled. Required: appId. The full parameter table on this page comes from the server's own tool schema.

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

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