get-collections · NestJS MCP Server Module MCP

WHAT IT DOES

What get-collections does on NestJS MCP Server Module

AI agents call get-collections to retrieve information from NestJS MCP Server Module without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

WHY IT NEEDS A POLICY

Why get-collections needs a policy

This tool queries and returns a list of available collections without creating, modifying, deleting, or executing anything. It is a passive read operation with no side effects, making it a straightforward Read category tool with low severity.

From the tool's definition Tool name 'get-collections' and description 'Get list of available collections' indicate a retrieval operation with no modification of data.

Attacks that exploit this kind of access

Questions about get-collections

What does the get-collections tool do? +

Get list of available collections. It is categorised as a Read tool in the NestJS MCP Server Module MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-collections? +

Register the NestJS MCP Server Module MCP server in PolicyLayer and add a rule for get-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 NestJS MCP Server Module. Nothing to install.

What risk level is get-collections? +

get-collections is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get-collections? +

Yes. Add a rate_limit block to the get-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.

How do I block get-collections completely? +

Set action: deny in the PolicyLayer policy for get-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.

What MCP server provides get-collections? +

get-collections is provided by the NestJS MCP Server Module MCP server (rekog-labs/mcp-nest). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.