CS
Codex Skin PlaygroundInteractive theme preview
Codex Preview · Unofficial simulator
New task
Build with an agent

What do you want to make?

Describe a task, ask about your codebase, or start from a recent thread.

Local environment · main
Refactor authentication12 files changed · 8m ago
Build analytics pagePlan ready · 31m ago
YOU
You

Refactor the authentication middleware so token validation is isolated and fully tested.

CX
Codex

I found the middleware and its existing integration tests. I’ll extract token validation without changing the public request flow.

✓ Read src/auth/middleware.ts · tests/auth.test.ts
src/auth/validate-token.ts
export function validateToken(token: string) {
  if (!token) return { ok: false, reason: 'missing' }
  return verifySignature(token)
}
Agent is working

Refactor authentication middleware

Applying the approved plan and checking behavior after every change.

Inspect current middleware and tests
Add token validation tests
Extract validation module
Run full test suite
COMMAND FAILED · EXIT 1

Two authentication tests failed

Expected an expired token to return 401, but the extracted validator returned a generic invalid-token response. The original behavior must be preserved before continuing.

npm test · auth.test.ts
AssertionError: expected 401 "token_expired" received 401 "invalid_token"