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env_vars

Manage environment variables (CRUD)

Risk signalsCan delete or expose env variables

Part of the Coolify server.

env_vars can permanently delete data in Coolify, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents may call env_vars to permanently remove or destroy resources in Coolify. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call env_vars in a loop, permanently destroying resources in Coolify. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

policy.json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "env_vars"
  ]
}

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These attack patterns abuse exactly the kind of access env_vars gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so env_vars only ever does what you allow.

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Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.

What does the env_vars tool do? +

Manage environment variables (CRUD). It is categorised as a Destructive tool in the Coolify MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on env_vars? +

Register the Coolify MCP server in PolicyLayer and add a rule for env_vars: 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. Nothing to install.

What risk level is env_vars? +

env_vars is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit env_vars? +

Yes. Add a rate_limit block to the env_vars 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 env_vars completely? +

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

env_vars is provided by the Coolify MCP server (@masonator/coolify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Coolify tool call.

Deterministic rules across all 39 Coolify tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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4,600+ MCP servers and 31,000+ tools scanned and risk-classified.

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