update_pwa

Update the PWA manifest (the full manifest object replaces the existing one).

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-pwa.md

WHAT IT DOES

What update_pwa does on Webcake Storefront

AI agents use update_pwa 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_pwa is rated Medium

The tool updates/replaces the PWA manifest, which is data modification that affects how the progressive web app is configured and presented to users. While reversible (not deletion), this is a critical configuration element that could redirect users, inject malicious scripts, or degrade functionality if misused by an uncontrolled agent.

From the tool's definition Tool name 'update_pwa' and description 'the full manifest object replaces the existing one' indicates modification of PWA configuration. This is reversible write operation on storefront configuration.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

update_pwa Rate-limited

update_pwa 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_pwa": {
      "limits": [
        {
          "counter": "update_pwa_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_pwa call is checked against it from then on.

FAQ

Questions about update_pwa

What does the update_pwa tool do? +

Update the PWA manifest (the full manifest object replaces the existing one). 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_pwa? +

Register the Webcake Storefront MCP server in PolicyLayer and add a rule for update_pwa: 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_pwa? +

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

Can I rate-limit update_pwa? +

Yes. Add a rate_limit block to the update_pwa 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_pwa completely? +

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

update_pwa 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 →

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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 →