ons_ingest · Open Neural Substrate MCP: Risk & Policy

WHAT IT DOES

What ons_ingest does on Open Neural Substrate

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

WHY IT NEEDS A POLICY

Why ons_ingest needs a policy

'Ingest' typically means importing or writing new data into a system. In the context of a knowledge graph server, this likely creates or adds new neuron entries. The empty description lowers confidence significantly. Severity is medium because ingesting data into a persistent knowledge graph could have meaningful side effects, but it appears reversible (sibling tool ons_delete exists).

From the tool's definition Tool name 'ons_ingest' on a server described as a knowledge graph manager with 'memory consolidation' capabilities; no description provided.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ons_ingest Rate-limited

ons_ingest 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": {
    "ons_ingest": {
      "limits": [
        {
          "counter": "ons_ingest_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 Open Neural Substrate, so you can run agents against it safely.

FAQ

Questions about ons_ingest

What does the ons_ingest tool do? +

ons_ingest. It is categorised as a Write tool in the Open Neural Substrate MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ons_ingest? +

Register the Open Neural Substrate MCP server in PolicyLayer and add a rule for ons_ingest: 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 Open Neural Substrate. Nothing to install.

What risk level is ons_ingest? +

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

Can I rate-limit ons_ingest? +

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

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

ons_ingest is provided by the Open Neural Substrate MCP server (pedroknigge/open-neural-substrate). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.