edit_library · NASA SciX MCP Server MCP: Risk & Policy

WHAT IT DOES

What edit_library does on NASA SciX MCP Server

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

WHY IT NEEDS A POLICY

Why edit_library needs a policy

An AI agent can call edit_library faster than any human can review — one bad instruction and it creates or modifies resources in NASA SciX MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

edit_library Rate-limited

edit_library 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": {
    "edit_library": {
      "limits": [
        {
          "counter": "edit_library_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 NASA SciX MCP Server, so you can run agents against it safely.

FAQ

Questions about edit_library

What does the edit_library tool do? +

Edit library metadata (name, description, public status). It is categorised as a Write tool in the NASA SciX 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 edit_library? +

Register the NASA SciX MCP Server MCP server in PolicyLayer and add a rule for edit_library: 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 NASA SciX MCP Server. Nothing to install.

What risk level is edit_library? +

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

Can I rate-limit edit_library? +

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

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

edit_library is provided by the NASA SciX MCP Server MCP server (thostetler/scix-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.