Your AI habits,
in your hands.
Guardian watches how you use AI tools and checks in when it matters. Every insight stays on your device. Nothing leaves it.
Why Guardian exists
AI tools are designed to extend your sessions.
Guardian is designed to protect you from that.
The average knowledge worker spends hours a day in AI sessions. Most have no idea how many. Guardian tracks every session — duration, frequency, topic patterns — and shows you that data privately. Just you.
It does not read your conversations. It reads the shape of them. When the numbers suggest you need a moment, it checks in. What you do next is entirely up to you.
How Guardian works
Three things. That's it.
Watches automatically
Session duration, frequency, message count. Guardian runs silently in your browser on Claude, ChatGPT, Gemini, and more. You don't configure anything.
Calibrates to you
Answer ten questions once during setup. Your answers set a personal baseline using the CAIDS-10. Every check-in fires against your patterns — not a generic threshold.
Checks in at the right moment
When your session runs long or your day looks heavy, Guardian checks in — once, quietly, at a conversation boundary. You dismiss it with one tap. That's the entire interaction.
Your usage, visible
See how much AI you're actually using.
Session duration, frequency, and what you were talking about. Guardian shows a complete view of your day — data you were generating anyway, now visible to you.
Most people are surprised by the numbers. Guardian makes them available in a private dashboard, updated in real time, stored only on your device.
I thought I was quickly checking something. Guardian showed me I'd had eleven sessions that day. I didn't realise how much of my thinking I'd outsourced.
Early user — knowledge worker, 6 weeks with Guardian
Built around you
Your check-ins are calibrated to you,
not a default.
Answer ten questions once. Guardian works from those answers. Check-ins only fire when your day looks unusual for you — not for some average user Guardian has never met.
The baseline uses the CAIDS-10, a validated short form of a published clinical screening instrument. Two minutes, done once. Your responses stay on your device.
The science
Every rule that fires has a citation.
Guardian is not a mood tracker built on a hunch. Five published frameworks anchor every decision the software makes — from when it fires to how it speaks to you.
Guardian uses the CAIDS-10 (10-item short form) during setup to establish your personal baseline. The instrument was developed and validated specifically for AI-use patterns — not repurposed from internet addiction scales.
Check-ins fire at conversation boundaries, not on a timer. JITAI defines when an intervention is most likely to be actionable — at a natural decision point, not mid-sentence when you can't usefully respond.
Every Guardian check-in is designed to support autonomy — not to compel behaviour. SDT says that autonomy-supportive interventions produce lasting change; controlling ones produce reactance. "Not now" is always one tap away.
COM-B (Capability, Opportunity, Motivation) structures what any change needs. Shen's engagement typology distinguishes reflection from reliance — so Guardian can tell the difference between a productive deep session and a loop you'd rather not be in.
Your mind is private
Nothing leaves
your machine.
Guardian has no server. Everything it stores lives in your browser's local storage, on your device, and nowhere else. This is not a policy. It is the architecture.
Local-first, always
All data lives in your browser. No cloud sync. No server we could breach or subpoena. Uninstall the extension and it's gone.
No account required
Install and it works. No email. No sign-up. No profile Guardian knows about. There is no account.
Yours to take or delete
Export everything as JSON at any time. Delete everything with one click. No confirmation emails. No "are you sure?" loops.
Guardian is not a clinical tool and is not a substitute for professional mental health care. If you are experiencing difficulties, please speak with a qualified professional.
Get started
Ready when
you are.
Free. No account. No setup beyond 2 minutes. Works in 30 seconds.