Primitive 10 / Send-time optimizer

Send-time optimizer

Per-recipient best-time predictor backed by historical opens. Confidence chip surfaces low-data warnings; previous-send context anchors recommendations against what was tried before.

Production answer

Send-time optimizer is a reusable Oak Flats Muffler Men UI primitive with documented states, accessibility expectations, theme behavior, and implementation evidence.

Primary CTAReview Send-time optimizer states
Generative search brief

Send-time optimizer: Per-recipient best-time predictor backed by historical opens. Confidence chip surfaces low-data warnings; previous-send context anchors recommendations against what was tried before.

State 1 · Mixed-confidence cohort

Send-time optimizer

Winter exhaust deals · cohort A

Mixed signal
Dazza Whittaker
Tue 6:42pmWas · Wed 10:00am86%
Aletheia Sako
Thu 8:18amWas · Mon 6:00pm72%
Brendan Crowe
Sat 9:55amWas · Sat 9:00am64%
Lin Quinones
Wed 7:08pmNew contact41%

State 2 · Tuned high-confidence cohort

Send-time optimizer

Bay 2 dyno follow-up · power users

High confidence
Dazza Whittaker
Tue 6:42pmWas · Wed 10:00am86%
Aletheia Sako
Thu 8:18amWas · Mon 6:00pm72%
Brendan Crowe
Sat 9:55amWas · Sat 9:00am64%
Lin Quinones
Wed 7:08pmNew contact41%
Helmut Pfisterer
Fri 5:42pmWas · Sat 9:00am89%

State 3 · Cold start (low confidence)

Send-time optimizer

Cold-start cohort · new sign-ups

Low confidence
Mateusz Andrzej
Default · Tue 6:30pmNew contact12%
Selita Mafi
Default · Tue 6:30pmNew contact8%