ingest_document · Cardiology Knowledge Graph MCP

WHAT IT DOES

What ingest_document does on Cardiology Knowledge Graph MCP

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

WHY IT NEEDS A POLICY

Why ingest_document needs a policy

This tool reads a document and writes extracted entities/relationships as draft data into the knowledge graph. It creates new data (Write) rather than simply reading, but does not irreversibly destroy or execute arbitrary code. The medical context raises severity since incorrect extraction could introduce erroneous clinical data, but drafts are presumably reversible.

From the tool's definition 'Ingest a cardiology document (PDF path or raw text) and extract draft entities/relationships'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ingest_document Rate-limited

ingest_document 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": {
    "ingest_document": {
      "limits": [
        {
          "counter": "ingest_document_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 Cardiology Knowledge Graph MCP, so you can run agents against it safely.

FAQ

Questions about ingest_document

What does the ingest_document tool do? +

Ingest a cardiology document (PDF path or raw text) and extract draft entities/relationships. It is categorised as a Write tool in the Cardiology Knowledge Graph 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 ingest_document? +

Register the Cardiology Knowledge Graph MCP server in PolicyLayer and add a rule for ingest_document: 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 Cardiology Knowledge Graph MCP. Nothing to install.

What risk level is ingest_document? +

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

Can I rate-limit ingest_document? +

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

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

ingest_document is provided by the Cardiology Knowledge Graph MCP server (ryoureddy/cardiology-knowledge-graph-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.