004 · Code Review Diff — saas-motion-kit

Friday release #2231

Mergedcheckout-v3 → main · Fri 16:58

All checks have passed · 4 of 4

unit tests1,204 passed

lint · build41 s

e2e · checkout flowstaging

productionnobody watching

And the drop still shipped on Friday.

1 · HOOK0:00–0:08

Checks resolve top→bottom, one per beat (spinner → green tick, stagger 0.5 s), the Merged badge stamps in on beat 4; then the last row greys out — “production · nobody watching” — and the headline types up from the bottom on the next bar.

how-we-watch-production.md

@@ -12,3 +12,3 @@ monitoring

12## Who checks production?

13−38 dashboards, checked by hand

14−whoever is awake

13+

Acme Pulse

14+every metric, every minute

Acme Pulse · production watch● running

2 · REVEAL0:08 (drop)

On the drop the two red lines strike through left→right (0.3 s power2.in) and the teal “+” line slides in beneath them (y 8→0, 0.3 s) at hero size; on the next downbeat a new always-running check appears below — Acme Pulse is now part of the pipeline.

Acme Pulse · production watch1 anomaly

@@ metrics/checkout.conversion @@ 09:30 → 09:48

41−09:36 3.42% baseline

42+09:42 2.80% after #2231

acme-pulse agentcommented · 09:44

Checkout conversion −18%

since 09:42 · after deploy #2231

Suggested change

L1−live: deploy #2231

L1+live: deploy #2230 (last good)

Roll backAcknowledgeSneeds your review

SSam approved the suggestion09:48 · rolling back #2231

Resolved in 6 minconversion back to 3.41%

3 · PROOF MOMENT0:12–0:32

The production check flips from teal spinner to coral ✗ on the snare, the collapsed @@ hunk unfolds downward (height tween 0.4 s), and Pulse's review comment slides up with a suggested change; the cursor lands on Roll back on the next downbeat — the agent proposes, the human merges.

Caught before customers noticed.

14 metrics watched · resolved in 6 min

Acme Pulse

Start free▾merge into your stack

4 · CTA0:36–0:45

The page scrolls up to the merge box (0.6 s power3.inOut); the check row turns green on the downbeat, the lockup fades in, and the coral “Start free” merge button settles last with a 1-frame press on the final kick.

COMPONENT KIT

PR header + Merged badge — the release that shipped on Friday.
Status checks list — green ticks for CI, then Pulse as the check that never stops running.
Diff hunk (− / + lines) — before / after, with line strike-through.
Review comment by the agent — the anomaly, with a bot badge.
Suggested-change block — Pulse proposes the rollback; nothing applies itself.
Merge button — becomes the coral “Start free” CTA with a split caret.

MOTION · MUSIC

Hunk unfold — collapsed @@ expands with a height tween, 0.4 s power2.out, content fades in 0.1 s behind it; starts on a downbeat, ends before the next (0.5 s at 120 BPM).
Line strike-and-replace — red line gets a strike-through drawn left→right in 0.3 s, then the + line slides in (y 8→0, 0.3 s) on the following 1/8.
Checks pipeline — spinners resolve one by one, stagger 0.5 s so every tick lands on a beat; the failing one lands on the snare.

WHY / RISK · ADAPT IT

Why: code review is the cleanest existing metaphor for “the machine proposes, a human approves” — checks, a suggested change and an approve button already mean exactly that. Risk: non-developers may not read diffs; keep hunks to 2–3 lines and write them in plain language.

Adapt to your product: turn your product's before/after into a diff (old workflow − / new workflow +) and your core alert into a review comment with a suggested change; your CTA is the merge button.

References: GitHub Docs — suggested changes in review · Cursor — inline suggestions