01One thread. Both agents. Still there tomorrow.
Text it like a coworker. It answers from your machine, your repo, your MCP servers, your env vars. Claude and Codex both live in the same thread, so you do not switch apps to switch agents. When it hits a permission prompt at 12:06, you get the prompt on your phone at 12:06, with the diff.
Anthropic gives you a phone window into one Claude session. OpenAI gives you a phone window into Codex. Tweety Bird gives you one thread into both, on your machine, that is still there tomorrow.
02Your laptop closes at 6. Your agents don't.
Lid closes. Agent keeps going on the mini. The overnight refactor hits a prompt at 11:22 PM, your phone buzzes at 11:22 PM, you tap, it finishes by 2 AM instead of stalling for seven hours. Read-heavy work runs unattended. Anything that spends money or touches prod waits for your tap.
Cloud agents work while you're away by taking your code somewhere else. Tweety Bird works while you're away on the Mac you already own.
03Your agent sends the file back.
"Send me the diff as a file." You get a file, not a summary that says "done." The screenshot of the failing Playwright run, in your thread, in ten seconds, no scp. It knows which file "the report" is, because it is the same agent that just made it.
Every remote lets you send a photo to your agent. Tweety Bird lets your agent send the file back.
04Codex already knows what Claude decided.
Ask Codex to review the migration Claude wrote. It opens the PR already knowing you keep Stripe customer IDs on the org row, and why. It does not flag it. Claude hits the 5-hour cap at 3:30; you text "codex, take it from here," and Codex takes it from there, mid-thought.
Anthropic remembers for Claude, on one machine. OpenAI remembers for Codex, if you turn it on. Tweety Bird remembers for both, and they remember each other.
05It clicks the button you would have opened the laptop for.
A real Chrome, on your Mac, logged into the dashboards you are already logged into. First of the month: Stripe, AWS, Vercel, Supabase invoices, pulled and texted as PDFs. Every morning: it clicks through the real signup flow on prod and only texts you if something broke.
Claude in Chrome needs you at the desktop. Codex computer use needs the desktop app. Zapier needs an API. Tweety Bird needs a text.
06Figure it out once. It runs at 7 AM forever.
Any prompt you have gotten right once becomes a schedule. The scheduled run has today's memory, not a fresh clone that has never met your repo. Actual cron on your box, not a 7-day timer that dies with your terminal. If the Mac was asleep, it catches up.
Every native scheduler either dies with your terminal or starts from a fresh clone. Tweety Bird's runs on your box with today's memory and texts you the result.