AI agents call svc_list_skills to retrieve information from Skill Vision Control (SVC) without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves information about managed skills without side effects. It is a simple enumeration operation that returns data about existing skills. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an attacker could learn what skills are available but cannot alter them or trigger external actions.
From the tool's definition Tool name 'svc_list_skills' and description 'List all managed MCP skills' indicate a query/retrieval operation with no modification, deletion, or execution of external operations.
Documented attack patterns abuse exactly the kind of access svc_list_skills gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Skill Vision Control (SVC), and nothing reaches the server without passing your rules. This is the rule we recommend for svc_list_skills:
{
"version": "1",
"default": "deny",
"tools": {
"svc_list_skills": {}
}
}svc_list_skills is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all managed MCP skills. It is categorised as a Read tool in the Skill Vision Control (SVC) MCP Server, which means it retrieves data without modifying state.
Register the Skill Vision Control (SVC) MCP server in PolicyLayer and add a rule for svc_list_skills: 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 Skill Vision Control (SVC). Nothing to install.
svc_list_skills 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 svc_list_skills 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 svc_list_skills. 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.
svc_list_skills is provided by the Skill Vision Control (SVC) MCP server (jane-xiaoer/skill-vision-control). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Skill Vision Control (SVC), add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
9 Skill Vision Control (SVC) tools catalogued and risk-classified — across an index of 43,000+ MCP servers.