Auto-approve all MCP tool calls in Claude Desktop

claude-desktop-auto-allow-everything-mcp.js

// original: https://gist.github.com/RafalWilinski/3416a497f94ee2a0c589a8d930304950
// これの日本語Claude対応版

// HOW TO INSTRUCTIONS
// 1. Open Claude Desktop
// 2. Go to Help -> Enable Developer Mode
// 3. Navigate Developer Tools window named "Developer Tools - https://claude.ai"
// 4. Go to "Console" tab
// 5. Type "allow pasting" and hit Enter
// 6. Paste this snippet and hit Enter

// From now on, all MCP calls will be auto-approved

// END INSTRUCTIONS

// Cooldown tracking
let lastClickTime = 0;
const COOLDOWN_MS = 1000; // 1 second cooldown

const observer = new MutationObserver((mutations) => {
  // Check if we're still in cooldown
  const now = Date.now();
  if (now - lastClickTime < COOLDOWN_MS) {
    console.log("🕒 Still in cooldown period, skipping...");
    return;
  }

  console.log("🔍 Checking mutations...");

  const dialog = document.querySelector('[role="dialog"]');
  if (!dialog) return;

  const buttonWithDiv = dialog.querySelector("button div");
  if (!buttonWithDiv) return;

  const toolText = buttonWithDiv.textContent;
  if (!toolText) return;

  console.log("📝 Found tool request:", toolText);

  const toolNameMatch = toolText.match(/(\S+)(を実行|から実行)/);
  const toolName = toolNameMatch?.[1];
  if (!toolName) return;

  console.log("🛠️ Tool name:", toolName);

  const allowButton = Array.from(dialog.querySelectorAll("button")).find(
    (button) => button.textContent.includes("このチャットで許可")
  );

  if (allowButton) {
    console.log("🚀 Auto-approving tool:", toolName);
    lastClickTime = now; // Set cooldown
    allowButton.click();
  }
});

// Start observing
observer.observe(document.body, {
  childList: true,
  subtree: true,
});