knowledge_ingest_url · Chisel Knowledge MCP: Risk & Policy

WHAT IT DOES

What knowledge_ingest_url does on Chisel Knowledge MCP

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

WHY IT NEEDS A POLICY

Why knowledge_ingest_url needs a policy

This tool retrieves content from a URL and stores it in the workspace inbox, which is a write operation (creating new data). It is reversible in principle (the ingested file can be deleted). The blast radius is medium because a misused agent could flood the inbox with unwanted content or ingest malicious URLs.

From the tool's definition 'Ingest a URL into a workspace inbox' — fetches content from a URL and writes it into the workspace inbox directory

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

knowledge_ingest_url Rate-limited

knowledge_ingest_url 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": {
    "knowledge_ingest_url": {
      "limits": [
        {
          "counter": "knowledge_ingest_url_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 Chisel Knowledge MCP, so you can run agents against it safely.

FAQ

Questions about knowledge_ingest_url

What does the knowledge_ingest_url tool do? +

Ingest a URL into a workspace inbox. It is categorised as a Write tool in the Chisel Knowledge 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 knowledge_ingest_url? +

Register the Chisel Knowledge MCP server in PolicyLayer and add a rule for knowledge_ingest_url: 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 Chisel Knowledge MCP. Nothing to install.

What risk level is knowledge_ingest_url? +

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

Can I rate-limit knowledge_ingest_url? +

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

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

knowledge_ingest_url is provided by the Chisel Knowledge MCP server (teknologika/chisel-knowledge-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.