diff --git a/scripts/teardown-ai-workspace.sh b/scripts/teardown-ai-workspace.sh
new file mode 100755
index 0000000..624a6c1
--- /dev/null
+++ b/scripts/teardown-ai-workspace.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -e
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(dirname "$DIR")"
+
+echo "Starting AI-Relay-Kit Cleanup..."
+cd "$PROJECT_ROOT"
+
+# Ensure dependencies are installed
+if [ ! -d "node_modules" ]; then
+    echo "Dependencies not found, installing just in case..."
+    npm install
+fi
+
+# Run the cleaner
+npx tsx src/injector/clean.ts
+
+echo "Done."
diff --git a/src/injector/clean.ts b/src/injector/clean.ts
new file mode 100644
index 0000000..5481047
--- /dev/null
+++ b/src/injector/clean.ts
@@ -0,0 +1,18 @@
+import { cleanCodexConfig, cleanEnvConfigs } from './cleaner';
+
+function runCleaner() {
+  console.log('--- Starting AI-Relay-Kit Config Cleanup ---');
+  
+  // 1. Clean Codex
+  cleanCodexConfig();
+
+  // 2. Clean Environment Configs (Claude & Antigravity)
+  cleanEnvConfigs();
+
+  console.log('--- Cleanup Complete ---');
+  console.log('\n💡 Your AI Workspace has been restored to its pure, pristine state.');
+  console.log('   Please restart your terminal to apply the removed environment variables,');
+  console.log('   or manually run `unset ANTHROPIC_BASE_URL OPENAI_BASE_URL` in current sessions.');
+}
+
+runCleaner();
diff --git a/src/injector/cleaner.ts b/src/injector/cleaner.ts
new file mode 100644
index 0000000..f3b5712
--- /dev/null
+++ b/src/injector/cleaner.ts
@@ -0,0 +1,87 @@
+import fs from 'fs';
+import path from 'path';
+import os from 'os';
+
+export function cleanCodexConfig() {
+  const codexConfigPath = path.join(os.homedir(), '.codex', 'config.toml');
+  const codexCatalogPath = path.join(os.homedir(), '.codex', 'custom_model_catalog.json');
+
+  if (fs.existsSync(codexCatalogPath)) {
+    fs.unlinkSync(codexCatalogPath);
+    console.log(`[Codex Cleaner] Removed custom model catalog: ${codexCatalogPath}`);
+  }
+
+  if (fs.existsSync(codexConfigPath)) {
+    let tomlContent = fs.readFileSync(codexConfigPath, 'utf8');
+    let originalLength = tomlContent.length;
+
+    // 1. Remove top-level injected configurations
+    tomlContent = tomlContent.replace(/^model_provider\s*=\s*".*?"\r?\n?/gm, '');
+    tomlContent = tomlContent.replace(/^model_catalog_json\s*=\s*".*?"\r?\n?/gm, '');
+
+    // 2. Remove AI-Relay-Kit injected block
+    const markerStart = '\n# --- UNIFIED RELAY CONFIG START ---';
+    const markerEnd = '# --- UNIFIED RELAY CONFIG END ---\n';
+    
+    // Some older iterations might not have the marker, so let's also specifically target the deepseek-relay block if it exists
+    const fallbackRegex1 = /\[model_providers\.unified-relay\][\s\S]*?(?=\n\[|$)/g;
+    const fallbackRegex2 = /\[model_providers\.deepseek-relay\][\s\S]*?(?=\n\[|$)/g;
+    
+    if (tomlContent.includes(markerStart)) {
+      const regex = new RegExp(`${markerStart}[\\s\\S]*?${markerEnd}`, 'g');
+      tomlContent = tomlContent.replace(regex, '');
+    } else {
+      tomlContent = tomlContent.replace(fallbackRegex1, '');
+      tomlContent = tomlContent.replace(fallbackRegex2, '');
+    }
+
+    // Optional: Remove specific XWorkmate block if desired (as per user context)
+    const xworkmateStart = '# BEGIN XWORKMATE MANAGED MCP BLOCK';
+    const xworkmateEnd = '# END XWORKMATE MANAGED MCP BLOCK';
+    if (tomlContent.includes(xworkmateStart)) {
+      const xworkRegex = new RegExp(`${xworkmateStart}[\\s\\S]*?${xworkmateEnd}\r?\n?`, 'g');
+      tomlContent = tomlContent.replace(xworkRegex, '');
+      console.log(`[Codex Cleaner] Removed XWorkmate managed MCP block`);
+    }
+
+    if (tomlContent.length !== originalLength) {
+      fs.writeFileSync(codexConfigPath, tomlContent.trim() + '\n', 'utf8');
+      console.log(`[Codex Cleaner] Restored ~/.codex/config.toml to pristine state.`);
+    } else {
+      console.log(`[Codex Cleaner] ~/.codex/config.toml is already clean.`);
+    }
+  }
+}
+
+export function cleanEnvConfigs() {
+  const envFilePath = path.join(os.homedir(), '.ai-relay-kit.env');
+  const iacDir = path.join(os.homedir(), '.ai-relay-kit');
+
+  // 1. Delete the generated env file
+  if (fs.existsSync(envFilePath)) {
+    fs.unlinkSync(envFilePath);
+    console.log(`[Env Cleaner] Deleted ${envFilePath}`);
+  }
+
+  // 2. Delete the IaC directory
+  if (fs.existsSync(iacDir)) {
+    fs.rmSync(iacDir, { recursive: true, force: true });
+    console.log(`[Env Cleaner] Deleted IaC output directory ${iacDir}`);
+  }
+
+  // 3. Remove source lines from .bashrc and .zshrc
+  const rcFiles = ['.zshrc', '.bashrc'].map(f => path.join(os.homedir(), f));
+  for (const rcPath of rcFiles) {
+    if (fs.existsSync(rcPath)) {
+      let content = fs.readFileSync(rcPath, 'utf8');
+      if (content.includes('.ai-relay-kit.env')) {
+        const regex = /^.*source\s+.*\.ai-relay-kit\.env.*$/gm;
+        content = content.replace(regex, '');
+        fs.writeFileSync(rcPath, content, 'utf8');
+        console.log(`[Env Cleaner] Removed source line from ${rcPath}`);
+      }
+    }
+  }
+  
+  console.log(`[Env Cleaner] Claude Code and Antigravity third-party environment variables cleaned.`);
+}