generate_chapters · YT-NINJA MCP: Risk & Policy

WHAT IT DOES

What generate_chapters does on YT-NINJA

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

WHY IT NEEDS A POLICY

Why generate_chapters needs a policy

This tool creates new data (chapter markers) within a video's metadata structure, making it a Write operation. It's not merely retrieving information (Read) or executing arbitrary code (Execute).

From the tool's definition The tool 'generate_chapters' creates chapter markers for videos, which are metadata additions that modify video structure and organization. The description explicitly states it will 'Generate chapter markers,' indicating data creation/modification.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_chapters Rate-limited

generate_chapters 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": {
    "generate_chapters": {
      "limits": [
        {
          "counter": "generate_chapters_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 YT-NINJA, so you can run agents against it safely.

FAQ

Questions about generate_chapters

What does the generate_chapters tool do? +

Generate chapter markers for video. It is categorised as a Write tool in the YT-NINJA MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generate_chapters? +

Register the YT-NINJA MCP server in PolicyLayer and add a rule for generate_chapters: 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 YT-NINJA. Nothing to install.

What risk level is generate_chapters? +

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

Can I rate-limit generate_chapters? +

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

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

generate_chapters is provided by the YT-NINJA MCP server (satyamkumar420/yt-ninja-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.