List all indexes on a MongoDB collection
AI agents call mongodb_list_indexes to retrieve information from Multi-Database MCP Server 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 existing indexes on a MongoDB collection. It performs a read-only query that returns information without modifying, creating, or deleting any data or indexes. There are no side effects or reversible changes. This is a classic Read operation with low severity since it only exposes structural metadata that is typically non-sensitive in most database configurations.
From the tool's definition Tool name 'mongodb_list_indexes' and description 'List all indexes on a MongoDB collection' indicate a query/retrieval operation with no data modification or deletion.
Attacks that exploit this kind of access
List all indexes on a MongoDB collection. It is categorised as a Read tool in the Multi-Database MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Multi-Database MCP Server MCP server in PolicyLayer and add a rule for mongodb_list_indexes: 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 Multi-Database MCP Server. Nothing to install.
mongodb_list_indexes 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 mongodb_list_indexes 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 mongodb_list_indexes. 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.
mongodb_list_indexes is provided by the Multi-Database MCP Server MCP server (nam088/mcp-server). 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.
Teams ship this data inside their own products. See what a licence covers →