list_instances_tool
AI agents call list_instances_tool to retrieve information from MCP Logback Analyzer without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite the empty description creating some ambiguity, the 'list' verb strongly indicates a read-only operation that retrieves instance information. Listing instances has no side effects and fits the Read category pattern. Confidence is moderately high based on naming convention, but lowered slightly due to missing descriptive text.
From the tool's definition Tool name is 'list_instances_tool' with a verb 'list' that retrieves or queries data without modification. The server context (Logback Analyzer) suggests it lists application instances or service instances for analysis purposes.
Attacks that exploit this kind of access
list_instances_tool. It is categorised as a Read tool in the MCP Logback Analyzer MCP Server, which means it retrieves data without modifying state.
Register the MCP Logback Analyzer MCP server in PolicyLayer and add a rule for list_instances_tool: 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 MCP Logback Analyzer. Nothing to install.
list_instances_tool 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_instances_tool 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_instances_tool. 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_instances_tool is provided by the MCP Logback Analyzer MCP server (mengbi-super/mcp-tools). 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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