no-fake-async

Disallow async functions that have no await expression

Category: AI Behavior | Tier: Free

Why This Matters

AI marks functions as async even when they contain no await expressions. This forces the return value into a Promise unnecessarily, adding overhead and misleading callers about whether the operation involves I/O.

Bad Code

// AI marks functions async with no await
async function getUser(id: string) {
  return users.find(u => u.id === id);
}

async function formatName(name: string) {
  return name.trim().toLowerCase();
}

Good Code

// Remove async when no await is needed
function getUser(id: string) {
  return users.find(u => u.id === id);
}

function formatName(name: string) {
  return name.trim().toLowerCase();
}

Configuration

This rule has no configuration options. It is enabled by default in lintmyai:recommended.