mcp_edit_code

Edit MCP server code using find/replace

SERVERClaude C2 SOURCE0xyg3n/claude-c2

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0xyg3n-claude-c2/mcp-edit-code.md

WHAT IT DOES

What mcp_edit_code does on Claude C2

AI agents use mcp_edit_code to create or update resources in Claude C2, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Claude C2 environment.

RISK

Why mcp_edit_code is rated Medium

The tool creates or modifies code files, which is a Write operation. Severity is high because editing MCP server code could alter security properties, access controls, or behavior of a remote system control interface, potentially enabling privilege escalation or unauthorized access when combined with sibling tools like 'amsi_bypass', 'bypassuac', and 'defender_exclude'.

From the tool's definition Tool name contains 'edit' and description states 'Edit MCP server code using find/replace' — this modifies code files reversibly through find/replace operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mcp_edit_code safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Claude C2, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mcp_edit_code, this is the rule to start with:

mcp_edit_code Rate-limited

mcp_edit_code 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": {
    "mcp_edit_code": {
      "limits": [
        {
          "counter": "mcp_edit_code_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Claude C2, apply this rule, and every mcp_edit_code call is checked against it from then on.

FAQ

Questions about mcp_edit_code

What does the mcp_edit_code tool do? +

Edit MCP server code using find/replace. It is categorised as a Write tool in the Claude C2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mcp_edit_code? +

Register the Claude C2 MCP server in PolicyLayer and add a rule for mcp_edit_code: 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 Claude C2. Nothing to install.

What risk level is mcp_edit_code? +

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

Can I rate-limit mcp_edit_code? +

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

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

mcp_edit_code is provided by the Claude C2 MCP server (0xyg3n/claude-c2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Claude C2, and thousands of servers like it.

This server

All 94 Claude C2 tools →

Across the catalogue

edit_screen on Stitch MCP Server → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →