update_app_proxy
Update an app proxy configuration
This record as markdown: /tools/uvu-store-shopify-graphql-mcp/update-app-proxy.md
What update_app_proxy does on Shopify Graphql
AI agents use update_app_proxy to create or update resources in Shopify Graphql, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Shopify Graphql environment.
Why update_app_proxy is rated Medium
This tool creates or modifies app proxy configuration, which is a reversible write operation. While app proxy misconfiguration could redirect requests or expose security risks (raising severity to medium), the operation itself can be undone by reverting the configuration. It does not delete data (Destructive), execute arbitrary code (Execute), move money (Financial), or retrieve data (Read).
From the tool's definition Tool description states 'Update an app proxy configuration' — 'update' indicates reversible modification of existing configuration data. App proxy configurations control request routing and security policies, making misuse impactful but not destructive.
Attacks that exploit this kind of access
The rule that runs update_app_proxy safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Shopify Graphql, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_app_proxy, this is the rule to start with:
update_app_proxy 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Shopify Graphql, apply this rule, and every update_app_proxy call is checked against it from then on.
Questions about update_app_proxy
Update an app proxy configuration. It is categorised as a Write tool in the Shopify Graphql MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Shopify Graphql MCP server in PolicyLayer and add a rule for update_app_proxy: 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 Shopify Graphql. Nothing to install.
update_app_proxy is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the update_app_proxy 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.
Set action: deny in the PolicyLayer policy for update_app_proxy. 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.
update_app_proxy is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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