nia_scrape · Nia Link MCP: Risk & Policy

WHAT IT DOES

What nia_scrape does on Nia Link

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

WHY IT NEEDS A POLICY

Why nia_scrape needs a policy

An AI agent can call nia_scrape faster than any human can review — one bad instruction and it creates or modifies resources in Nia Link by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

nia_scrape Rate-limited

nia_scrape 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": {
    "nia_scrape": {
      "limits": [
        {
          "counter": "nia_scrape_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 Nia Link, so you can run agents against it safely.

FAQ

Questions about nia_scrape

What does the nia_scrape tool do? +

Scrape a webpage and convert it to clean Markdown with an action map of interactive elements (buttons, inputs, links). Supports fast (HTTP) and visual (browser) modes. It is categorised as a Write tool in the Nia Link MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on nia_scrape? +

Register the Nia Link MCP server in PolicyLayer and add a rule for nia_scrape: 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 Nia Link. Nothing to install.

What risk level is nia_scrape? +

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

Can I rate-limit nia_scrape? +

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

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

nia_scrape is provided by the Nia Link MCP server (nia-atavism/nia-link). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.