tool_import_csv · origin- MCP: Risk & Policy

WHAT IT DOES

What tool_import_csv does on origin-MCP

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

WHY IT NEEDS A POLICY

Why tool_import_csv needs a policy

Importing data creates or modifies worksheet contents, fitting the Write category (creates/modifies data reversibly). Severity is low because: (1) the operation is reversible (imported data can be cleared or the worksheet deleted), (2) import is limited to reading external files—no code execution or deletion, (3) blast radius is confined to the target worksheet, and (4) the tool operates within a scientific plotting…

From the tool's definition Tool name 'tool_import_csv' and description explicitly state 'Import data from a CSV/TXT/DAT file into an Origin worksheet', which creates or populates data structures in the application.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tool_import_csv Rate-limited

tool_import_csv 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": {
    "tool_import_csv": {
      "limits": [
        {
          "counter": "tool_import_csv_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 origin-MCP, so you can run agents against it safely.

FAQ

Questions about tool_import_csv

What does the tool_import_csv tool do? +

Import data from a CSV/TXT/DAT file into an Origin worksheet. Supports full or partial row import. It is categorised as a Write tool in the origin-MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on tool_import_csv? +

Register the origin- MCP server in PolicyLayer and add a rule for tool_import_csv: 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 origin-MCP. Nothing to install.

What risk level is tool_import_csv? +

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

Can I rate-limit tool_import_csv? +

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

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

tool_import_csv is provided by the origin- MCP server (zhang-923-ze/origin-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.