needle_create_collection · Needle MCP Server MCP

WHAT IT DOES

What needle_create_collection does on Needle MCP Server

AI agents use needle_create_collection to create or update resources in Needle MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Needle MCP Server environment.

WHY IT NEEDS A POLICY

Why needle_create_collection needs a policy

Creating a collection is a Write operation—it creates new data structures within the Needle document management system. The action is reversible (collections can presumably be deleted), so it does not rise to Destructive. Confidence is 0.85 rather than higher because the tool description is empty, requiring inference from naming and context.

From the tool's definition Tool name 'needle_create_collection' indicates creation of a new collection resource. Sibling tools like 'needle_add_file', 'needle_list_collections', and 'needle_get_collection_details' confirm this is a document management system where collections are…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

needle_create_collection Rate-limited

needle_create_collection stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "needle_create_collection": {
      "limits": [
        {
          "counter": "needle_create_collection_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Needle MCP Server, so you can run agents against it safely.

FAQ

Questions about needle_create_collection

What does the needle_create_collection tool do? +

needle_create_collection. It is categorised as a Write tool in the Needle MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on needle_create_collection? +

Register the Needle MCP Server MCP server in PolicyLayer and add a rule for needle_create_collection: 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 Needle MCP Server. Nothing to install.

What risk level is needle_create_collection? +

needle_create_collection is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit needle_create_collection? +

Yes. Add a rate_limit block to the needle_create_collection 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 needle_create_collection completely? +

Set action: deny in the PolicyLayer policy for needle_create_collection. 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 needle_create_collection? +

needle_create_collection is provided by the Needle MCP Server MCP server (needle-ai/needle-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.