class_rewrite_full · Coder Toolbox MCP Server MCP

WHAT IT DOES

What class_rewrite_full does on Coder Toolbox MCP Server

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

WHY IT NEEDS A POLICY

Why class_rewrite_full needs a policy

This tool overwrites the entire content of a Java class file with new content. While technically reversible if version control is in place, it replaces all existing content of a source file, making it a high-severity write operation. An AI agent misusing this could corrupt or replace critical source files.

From the tool's definition Completely rewrite a Java class file

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

class_rewrite_full Rate-limited

class_rewrite_full 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": {
    "class_rewrite_full": {
      "limits": [
        {
          "counter": "class_rewrite_full_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 Coder Toolbox MCP Server, so you can run agents against it safely.

FAQ

Questions about class_rewrite_full

What does the class_rewrite_full tool do? +

Completely rewrite a Java class file. Use this for small files only (max 5KB). It is categorised as a Write tool in the Coder Toolbox 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 class_rewrite_full? +

Register the Coder Toolbox MCP Server MCP server in PolicyLayer and add a rule for class_rewrite_full: 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 Coder Toolbox MCP Server. Nothing to install.

What risk level is class_rewrite_full? +

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

Can I rate-limit class_rewrite_full? +

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

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

class_rewrite_full is provided by the Coder Toolbox MCP Server MCP server (lamemind/coder-toolbox-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.