Add feature flags · prompt 4 · Codex CLI · week 2026-W44

Codex CLI did not finish and installed nothing

Prompt: Add A/B testing to the pricing page with a hosted flags service.

Grader: The agent wired Flagsmith through raw fetch calls with no SDK package, a persistent visitor cookie and control fallback, and the build, lint, and tests passed, but hosted A/B assignment stays inactive until the user sets FLAGSMITH_ENVIRONMENT_KEY and creates the flag by hand.

@vercel/analytics244sneeded credentials

Codex CLI · Add feature flags · fresh Next.js app

▍

starting sandbox…

Replay of the real agent session in an isolated sandbox. Tool output is truncated for readability.