Experiment metrics
The §5 targets that read the hypothesis. 0 paid users.
0%
Activation
target ≥ 60%
102.1%
Brief completion
target ≥ 95%
19.5s
Time-to-Brief (p90)
target ≤ 25,000 ms
34%
Cache hit rate
target ≥ 50% by week 6
1%
Track rate
target ≥ 25%
0%
Free → Plus
target ≥ 5%
—
Alert engagement
target ≥ 40%
9.8¢
Cost / fresh Brief
Funnel
query submitted
96
query refused
9
brief completed
98
cache hit
33
cache miss
64
track tapped
2
tracker created
1
paywall viewed
4
checkout started
1
subscription active
0
alert sent
0
alert opened
0
rate limited
0
Privacy-respecting: events are stored in our own Postgres (spec §14), not a third-party tracker. Paid D30 retention is computed over a rolling 30-day window once the beta has run that long.