system.warm_service_list
List persistent optional worker state without starting any process.
This record as markdown: /tools/visionmcp/system.warm-service-list.md
What system.warm_service_list does on Visionmcp
AI agents call system.warm_service_list to retrieve information from Visionmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why system.warm_service_list is rated Low
This tool reads or queries existing worker state data to enumerate persistent optional workers. The description explicitly states it does not start any process, confirming no execution or modification occurs. This is a pure read operation with minimal blast radius if misused by an AI agent.
From the tool's definition Tool name includes 'list' and description says 'List persistent optional worker state' — retrieves state information without side effects or process invocation.
Attacks that exploit this kind of access
The rule that runs system.warm_service_list safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Visionmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For system.warm_service_list, this is the rule to start with:
system.warm_service_list is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Visionmcp, apply this rule, and every system.warm_service_list call is checked against it from then on.
Questions about system.warm_service_list
List persistent optional worker state without starting any process. It is categorised as a Read tool in the Visionmcp MCP Server, which means it retrieves data without modifying state.
Register the Vision MCP server in PolicyLayer and add a rule for system.warm_service_list: 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 Visionmcp. Nothing to install.
system.warm_service_list 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 system.warm_service_list 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 system.warm_service_list. 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.
system.warm_service_list is provided by the Vision MCP server (joshuahickscorp/visionmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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