List collections in a MongoDB database with optional prefix filtering.
AI agents call list-collections to retrieve information from Universal Mcp Toolkit without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata about MongoDB collections without creating, modifying, deleting, or executing any operations. It is a straightforward enumeration query with no side effects, fitting the Read category. Severity is low because listing collections exposes database schema information but does not access sensitive data or permit harmful actions.
From the tool's definition Tool description explicitly states 'List collections in a MongoDB database' with 'optional prefix filtering'. The verb 'list' and the absence of any modification, deletion, or execution keywords indicate a read-only query operation.
Attacks that exploit this kind of access
List collections in a MongoDB database with optional prefix filtering. It is categorised as a Read tool in the Universal Mcp Toolkit MCP Server, which means it retrieves data without modifying state.
Register the Universal Mcp Toolkit MCP server in PolicyLayer and add a rule for list-collections: 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 Universal Mcp Toolkit. Nothing to install.
list-collections 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-collections 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-collections. 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-collections is provided by the Universal Mcp Toolkit MCP server (markgatcha/universal-mcp-toolkit). 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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