List all URL collections
AI agents call list_collections to retrieve information from 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 and displays existing URL collections without creating, modifying, or deleting data. It is a simple read operation with minimal security risk. The user's own collections are listed, posing low blast radius if an AI agent calls it.
From the tool's definition Tool name 'list_collections' and description 'List all URL collections' indicate a query/retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
List all URL collections. It is categorised as a Read tool in the MCP-Server MCP Server, which means it retrieves data without modifying state.
Register the MCP-Server 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 MCP-Server. 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 MCP-Server MCP server (surbhimotghare/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.
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