This tool gets all project and library variable set variables for a given project. Projects can contain variables (specific to a project), library variable sets (shared collections of variables associated with many projects), and tenant variables (variables related to a tenants connected to the p...
AI agents call get_variables to retrieve information from Octopus Deploy MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and queries configuration data (variables) from an Octopus Deploy instance. It has no capability to create, modify, delete, or execute operations. While variables may contain sensitive information like credentials, the tool itself is strictly read-only with no destructive or side effects.
From the tool's definition Tool description states it 'gets all project and library variable set variables' - this is a retrieval operation with no modification or side effects.
Documented attack patterns abuse exactly the kind of access get_variables gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Octopus Deploy MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_variables:
{
"version": "1",
"default": "deny",
"tools": {
"get_variables": {}
}
}get_variables is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
This tool gets all project and library variable set variables for a given project. Projects can contain variables (specific to a project), library variable sets (shared collections of variables associated with many projects), and tenant variables (variables related to a tenants connected to the project) If you want to retrieve tenant variables for a tenant connected to the project, use the get_tenant_variables tool. It is categorised as a Read tool in the Octopus Deploy MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Octopus Deploy MCP Server MCP server in PolicyLayer and add a rule for get_variables: 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 Octopus Deploy MCP Server. Nothing to install.
get_variables is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_variables 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 get_variables. 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.
get_variables is provided by the Octopus Deploy MCP Server MCP server (octopusdeploy/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 30 Octopus Deploy MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
30 Octopus Deploy MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.