update_app

Update an installed app

SERVERWebcake Storefront SOURCEwebcake-storefront-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/webcake-storefront/update-app.md

WHAT IT DOES

What update_app does on Webcake Storefront

AI agents use update_app to create or update resources in Webcake Storefront, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Webcake Storefront environment.

RISK

Why update_app is rated Medium

The tool modifies an installed app, which is a reversible write operation. This is not destructive (the previous version is typically recoverable) and not execute (it doesn't run arbitrary code, just updates an app). Severity is medium because updating an app on a storefront could affect site functionality or customer experience, but the operation is not catastrophic and can often be rolled back.

From the tool's definition Tool name 'update_app' and description 'Update an installed app' indicate modification of existing app configuration or version.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs update_app safely

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

update_app Rate-limited

update_app stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "update_app": {
      "limits": [
        {
          "counter": "update_app_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about update_app

What does the update_app tool do? +

Update an installed app. It is categorised as a Write tool in the Webcake Storefront MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on update_app? +

Register the Webcake Storefront MCP server in PolicyLayer and add a rule for update_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 Webcake Storefront. Nothing to install.

What risk level is update_app? +

update_app is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit update_app? +

Yes. Add a rate_limit block to the update_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 update_app completely? +

Set action: deny in the PolicyLayer policy for update_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 update_app? +

update_app is provided by the Webcake Storefront MCP server (webcake-storefront-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Webcake Storefront, and thousands of servers like it.

This server

All 287 Webcake Storefront tools →

Across the catalogue

aroflo_create_or_update_record on AroFlo MCP →team_manager_update_budget on Team Manager MCP → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →