One grid. Every agent. Every kind of customer.
Rows are people: first-time mobile shoppers, older adults, keyboard users, non-native readers. Columns are AI agents from different vendors. Each cell says whether they finished your funnel, and if not, the exact step, with the recording.
| Persona ↓ / Agent → | Claude CU | Gemini CU | Browser Use | OpenAI CUA |
|---|---|---|---|---|
| First-timer, mobilepatience 5 · iPhone | ||||
| Impatient shopperpatience 2 | ||||
| Older adult, low dexteritymin target 44px | ||||
| Non-native reader (B1)CEFR B1 | ||||
| Keyboard-onlyno pointer |
Three patterns tell you what to fix first.
Same step, many cells
When one step fails in three or more cells across rows and columns, it is a product bug: the highest priority.
A failing column
One agent fails everywhere: usually bot management, a CAPTCHA or a control that agent cannot operate.
A failing row
One kind of person fails with every agent: small targets, complex copy, keyboard traps.
Evidence, not a number
- Pass / fail against machine-checked success criteria
- The blocking step with screenshot, DOM snapshot and accessible names
- Full replay, console and network logs
- Persona parameters and the agent’s model version and date
- “Behavioural approximation” label on consumer-agent columns
No public 0-100 badge
Each job has a private Alt Matrix score (persona pass rate, agent pass rate, Confirmed findings) for tracking release over release. We never publish a score for your site: readiness scores are a commodity, and the evidence is what you act on.
Personas are simulations, not people. Findings are evidence of behaviour we observed on a given date with a given model version. They are never a statement that a site is “compliant”, “certified” or “agent-ready”. Consumer-agent classes are behavioural approximations, not the named products. Every published precision figure states its sample size and confidence interval. Read the full limitations statement →
Watch a job fill, cell by cell.
Signed agents run in real browsers, two sessions per origin at most, with a kill switch one click away. Product preview on sample data.
See where agents fail on your funnel.
Run one free cell on a property you own. No sales call, no card.