generate_nuke · VFX Parsers MCP Server MCP: Risk & Policy

WHAT IT DOES

What generate_nuke does on VFX Parsers MCP Server

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

WHY IT NEEDS A POLICY

Why generate_nuke needs a policy

generate_nuke creates new Nuke script files from JSON representations. While the description emphasizes round-trip stability and pipeline automation without modifying files, the tool itself performs write operations by generating .nk files.

From the tool's definition Tool description states 'Generate a Nuke .nk script from a JSON AST', which is a create/write operation that produces file output.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

generate_nuke Rate-limited

generate_nuke 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_nuke": {
      "limits": [
        {
          "counter": "generate_nuke_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 VFX Parsers MCP Server, so you can run agents against it safely.

FAQ

Questions about generate_nuke

What does the generate_nuke tool do? +

Generate a Nuke .nk script from a JSON AST. Round-trip stable: parse(generate(parse(x))) === parse(x). It is categorised as a Write tool in the VFX Parsers MCP Server 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_nuke? +

Register the VFX Parsers MCP Server MCP server in PolicyLayer and add a rule for generate_nuke: 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 VFX Parsers MCP Server. Nothing to install.

What risk level is generate_nuke? +

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

Can I rate-limit generate_nuke? +

Yes. Add a rate_limit block to the generate_nuke 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_nuke completely? +

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

generate_nuke is provided by the VFX Parsers MCP Server MCP server (mabaam/mcp-vfx-parsers). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.