knowledge_ingest_youtube · Chisel Knowledge MCP

WHAT IT DOES

What knowledge_ingest_youtube does on Chisel Knowledge MCP

AI agents use knowledge_ingest_youtube 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_youtube needs a policy

This tool creates new data (transcript content) in the workspace inbox, which is a reversible write operation. While it does involve external network activity to download from YouTube, the core action is data creation/modification within the managed knowledge workspace.

From the tool's definition The tool description states it will 'download a YouTube video transcript' and 'write it into a workspace inbox', which are create/modify operations. The 'write' operation is explicitly mentioned, creating new data in the workspace.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

knowledge_ingest_youtube Rate-limited

knowledge_ingest_youtube 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_youtube": {
      "limits": [
        {
          "counter": "knowledge_ingest_youtube_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_youtube

What does the knowledge_ingest_youtube tool do? +

Download a YouTube video transcript via yt-dlp, clean the subtitle markup, and write it 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_youtube? +

Register the Chisel Knowledge MCP server in PolicyLayer and add a rule for knowledge_ingest_youtube: 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_youtube? +

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

Can I rate-limit knowledge_ingest_youtube? +

Yes. Add a rate_limit block to the knowledge_ingest_youtube 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_youtube completely? +

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

knowledge_ingest_youtube 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.