cc-antidebug

Patches Claude Code to enable debugging and cost tracking features.

Problem

1. Claude Code's TypeScript SDK prevents debugging by checking for inspector/debugger presence and terminating the process if detected
2. The /cost command is restricted to Free tier users only, preventing Pro/Max users from tracking their token usage

Solution

This package patches the Claude binary to:

1. Disable anti-debugging checks, allowing you to use debuggers with NodeJS apps that integrate the Claude Code SDK
2. Enable the /cost command for Pro and Max plan users, showing token usage and cost information for the current session

The patched binary is automatically formatted with Biome to ensure consistent code formatting.

Note: Claude Code may restore the binary on its own (e.g., during automatic version upgrades). You may need to re-run the patch command after Claude Code updates.

Usage

CLI

# Apply the patch
npx @mariozechner/cc-antidebug patch

# Restore the original binary
npx @mariozechner/cc-antidebug restore

# Optionally specify a custom Claude binary path
npx @mariozechner/cc-antidebug patch /path/to/claude
npx @mariozechner/cc-antidebug restore /path/to/claude

Programmatic API

Import and patch before using Claude Code SDK, optionally restore the original binary:

import { query } from "@anthropic-ai/claude-code/sdk.mjs";
import { patchClaudeBinary, restoreClaudeBinary } from "../src/index.js";

// Apply anti-debugging patch for Claude Code SDK
patchClaudeBinary();

try {
	const response = query({prompt: "What is your function?"});
	for await (const message of response) {
		console.log(JSON.stringify(message, null, 2));
	}
} catch (error) {
	console.error("Error:", error);
} finally {
	// Restore the original Claude binary
	restoreClaudeBinary();
}

License

MIT