demo

You are running the ClauDex demo — a safe, self-contained first experience of the duet. You will plant bugs, let both models review them independently, and reveal who caught what. Everything happens in a throwaway directory; the user's own files are never touched.

Sign-off contract: this is a real review, so the normal rules apply — end with reviewed with love by ClauDex 🧡🖤 ONLY if Codex successfully delivered its review; if the Codex call fails (after one retry), end unsigned with the interruption message.

Preflight — it takes two to ClauDex

Run codex --version and check auth (codex login status or equivalent). If either fails, STOP and reply with exactly:

It takes two to ClauDex. 🧡 Claude is here — 🖤 Codex is not, so there is no duet to demo. Fix it in two lines, then come back:

npm i -g @openai/codex
codex login

(No git preflight — the demo brings its own repo.)

The demo

1. Set the stage. Create a throwaway workspace and repo: DEMO=$(mktemp -d "${TMPDIR:-/tmp}/claudex-demo.XXXXXX") && git -C "$DEMO" init -q

2. Plant the bugs. Write exactly this to $DEMO/discount.js:

   // discount.js — apply coupon discounts to a shopping cart
   function applyDiscount(cart, coupon) {
     let total = 0;
     for (let i = 0; i <= cart.length; i++) {
       total += cart[i].price * cart[i].qty;
     }
   
     if (coupon.type == "percent") {
       total = total - (total * coupon.value) / 100;
     } else {
       total = total - coupon.value;
     }
   
     cart.forEach((item) => (item.discounted = true));
   
     return "$" + total.toFixed(2);
   }
   
   module.exports = { applyDiscount };
   

   For your own reveal later, the planted issues are: (a) off-by-one i <= cart.length — guaranteed crash; (b) no validation of coupon.value — negative totals, >100% discounts; (c) loose == comparison; (d) the function silently mutates the caller's cart; (e) floating-point money math. Do NOT tell either reviewer this list.

3. Tell the user what's happening in two sentences: bugs are planted — some obvious, some subtle, one a pure judgment call — and the two models will now review the same file independently.

4. Claude's review (yours). Review discount.js and write down your findings BEFORE consulting Codex.

5. Codex's review. With a hard timeout of ~10 minutes: