Inbox triage and drafted replies
Reads the inbox, answers the routine mail, and flags what needs you.
Stack0 Agents
An AI teammate that does real work.
Agents signs into your tools, completes scheduled and triggered work, and waits for your approval before anything ships.
Chase the unpaid July invoices and draft follow-ups.
Found 3 unpaid invoices in QuickBooks
Drafted 3 follow-up emails in your voice
3 drafts waiting for your approvalReview
- Works in your tools
- Connects to Gmail, Slack, Attio, QuickBooks, and more.
- Approval before send
- Drafts wait for your sign-off. Nothing ships on its own.
- Schedules and triggers
- Run work on a routine, or when an event fires.
- Learns your voice
- Drafts read like you wrote them, and improve with feedback.
From handoff to done
Assign the work once. Agents runs it, and you stay the approver.
Connect your tools
Sign the agent into the accounts it will work in.
Describe the job
State the task, the schedule or trigger, and the rules in plain language.
Approve the result
Review the drafts and outcomes. The agent ships only after you approve.
Routine work it takes over
The same jobs that fill a founder's morning.
Books and receipts
Matches charges to receipts and drafts the month-end report.
Scheduling
Finds times, sends invites, and handles the reschedules.
Wherever you work
Drive it from the web app, mobile, Slack, or email.
Agents inside Stack0
Mast joined Stack0 as Stack0 Agents. The product is the same; the platform around it grows.
- One Stack0 subscription covers Agents along with every other product.
- The approval model stays: the agent drafts, you ship.
- Multiple models under the hood, including Claude, GPT, and Grok.
Hand off the routine work
Connect a tool, assign the first job, and review the drafts tomorrow morning.