AI agents call list-documents to retrieve information from Mcp Pinecone without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metadata about documents stored in a vector database index. It has no capability to modify, delete, or execute operations—it only returns information about existing documents. The blast radius if misused by an AI agent is minimal; the worst outcome would be information disclosure of document names/IDs already in the system. Classified as Read with low severity.
From the tool's definition Tool name 'list-documents' and description 'List all documents in the Pinecone index' indicate a retrieval operation with no modification or side effects.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access list-documents gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Pinecone, and nothing reaches the server without passing your rules. This is the rule we recommend for list-documents:
{
"version": "1",
"default": "deny",
"tools": {
"list-documents": {}
}
}list-documents is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all documents in the Pinecone index. It is categorised as a Read tool in the Mcp Pinecone MCP Server, which means it retrieves data without modifying state.
Register the Mcp Pinecone MCP server in PolicyLayer and add a rule for list-documents: 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 Pinecone. Nothing to install.
list-documents 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-documents 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-documents. 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-documents is provided by the Mcp Pinecone MCP server (sirmews/mcp-pinecone). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Mcp Pinecone tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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5 Mcp Pinecone tools catalogued and risk-classified — across an index of 42,500+ MCP servers.