List all services within a given stack.
AI agents call mittwald_stack_ps to retrieve information from Mittwald MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns information about running services without any side effects. It is a read-only operation that retrieves data about the state of a stack, fitting the Read category definition of data retrieval without side effects.
From the tool's definition Tool name includes 'ps' (process/service listing command) and description states 'List all services within a given stack' — purely informational retrieval with no modification, deletion, or execution capability.
Attacks that exploit this kind of access
List all services within a given stack. It is categorised as a Read tool in the Mittwald MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Mittwald MCP Server MCP server in PolicyLayer and add a rule for mittwald_stack_ps: 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 Mittwald MCP Server. Nothing to install.
mittwald_stack_ps 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 mittwald_stack_ps 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 mittwald_stack_ps. 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.
mittwald_stack_ps is provided by the Mittwald MCP Server MCP server (mittwald/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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