Update an existing application
AI agents use coolify.update_app to create or update resources in Coolify MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Coolify MCP Server environment.
The tool modifies application configuration or state reversibly (update operation). While it could impact running applications, it does not irreversibly delete data (unlike coolify.delete_app) nor execute arbitrary code (unlike coolify.deploy_app). The severity is high because misconfigured application updates could disrupt services, but the operation is theoretically reversible.
From the tool's definition Tool name 'update_app' and description 'Update an existing application' indicate modification of existing data. Context shows this is part of Coolify's app lifecycle control tools alongside deployment and management operations.
Attacks that exploit this kind of access
Update an existing application. It is categorised as a Write tool in the Coolify MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Coolify MCP Server MCP server in PolicyLayer and add a rule for coolify.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 Coolify MCP Server. Nothing to install.
coolify.update_app 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 coolify.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.
Set action: deny in the PolicyLayer policy for coolify.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.
coolify.update_app is provided by the Coolify MCP Server MCP server (thedurancode/coolify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
coolify.update_app is one line of Coolify MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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