List articles in a category (visibility: 1=public).
AI agents call list_kb_articles_by_category to retrieve information from InvGate Service Desk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries knowledge base articles filtered by category. It performs no modification, deletion, execution, or financial action. The visibility parameter only filters what is returned, not what is changed. This is a straightforward read operation with minimal blast radius if misused.
From the tool's definition Tool name 'list_kb_articles_by_category' and description 'List articles in a category' indicate a retrieval/query operation with no side effects. The mention of visibility levels (public) confirms it retrieves existing knowledge base data.
Attacks that exploit this kind of access
List articles in a category (visibility: 1=public). It is categorised as a Read tool in the InvGate Service Desk MCP Server, which means it retrieves data without modifying state.
Register the InvGate Service Desk MCP server in PolicyLayer and add a rule for list_kb_articles_by_category: 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 InvGate Service Desk. Nothing to install.
list_kb_articles_by_category 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 list_kb_articles_by_category 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 list_kb_articles_by_category. 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.
list_kb_articles_by_category is provided by the InvGate Service Desk MCP server (oci:ghcr.io/tracegazer/invgate-service-desk-mcp:0.2.0). 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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