auth.users has held at 12,408 rows since Saturday morning, breaking a trailing-14-day growth rate of ~60 new rows/day. No new sessions in the last 36 hours either. The row count in your warehouse still shows Friday's sync. Upstream insert activity dropped to zero; this looks like a broken ingestion path, not a slow weekend.
How an agent works
An agent watches one thing and acts on it. Not a workflow, just a standing watch that usually does nothing and acts the moment it should.
You stay in control
An agent does what you'd do, and only what you've authorized.
The same trusted numbers
It acts on the same governed metrics as your dashboards, and every action is logged and traceable.
You approve anything that writes
It alerts and recommends on its own; anything that changes data is yours to approve.
Try it on a test channel first
Point a new agent at a throwaway channel and watch its judgment before it touches anything real.
No false alarms
It remembers what it already flagged and waits before acting again, so it won't alert you about the same thing twice.
What you can put an agent on
Tie the row counts in Supabase to the numbers in the warehouse
It computes the metric off your live Supabase tables and checks it against the same metric in your warehouse, then flags the drift before anyone presents the wrong number. The count in the app and the count on the slide match, and you find the gap yourself instead of in a meeting.
Catch schema changes before they break downstream
When a column type changes, a table disappears, or a nullable flag flips in your Supabase schema, it flags the change and, with your approval, writes the finding back to a warehouse table your downstream pipeline already reads. You find out before the dbt run fails, not after.
Watch a business metric off your tables and catch the break
Point it at a metric you care about (signups, conversions, active users, whatever your tables describe) and it watches on your schedule. When it breaks trend, it tells you which cohort moved and by how much, then hands off to Fi to investigate the why across every source it can see.
Run any Python it needs to get the job done
Beyond alerts and write-backs, an agent can run arbitrary Python, so it can do whatever the task actually requires: call an API, kick off a job, reshape a result set, or wire into your own tooling. The SQL it runs is inspectable and the action space is yours to define.
Why not just build it yourself?
You could rig one of these with a cron job and a Slack webhook in an afternoon. The watching is the easy part. Here's what you'd own forever, and don't, here:
- →The cross-source join: not one tool's data, but it reconciled against the rest of your stack
- →A trusted, consistent metric: the same number your dashboards use
- →The investigation into why, when something fires
- →A full audit trail of everything it did
- →The upkeep, when the schema drifts or the script breaks at 2am
The data it works from
Every Supabase object, modeled and query-ready the moment you connect.
It runs on your real Supabase schema (JSONB columns, RLS policies, whatever your app actually writes), not a tidy demo. You define the metric once as governed SQL and it watches that.
Where it acts
Slack
A message in the channel you choose, with the context and a button to act on it.
A summary in the inbox of the people who need to see it.
Webhook
A payload to your own systems, to wire the agent into whatever you already run.
Warehouse write-back
A flag written back to your warehouse for everything downstream to pick up.
Hand off to Fi
Kick the question to Fi to investigate the why and propose the fix.
MCP
Expose it to your own agents and tools over MCP, and drive it from your stack.
Run it in your own VPC or fully self-hosted. Everything it does is pure SQL and Python you can inspect.
Build your agents with Fi
Fi is your AI analyst. It helps you build and customize everything in Definite, including the agents that watch and act.
Fi
Your AI analyst. Ask questions in plain English, and let it help you build and customize everything in Definite, including your agents.
Meet Fi →Agents
The watchers and actors. Once you've built one, it runs on its own, keeping an eye on what matters and acting the way you would.
Autonomous agents →Get started
- 1Connect Supabase, and the sources it needs to reconcile against. Synced and modeled in an afternoon.
- 2See the numbers tie out to what you already trust.
- 3Put an agent on one thing you can't afford to miss. Fi helps you build it.