Playground replay

The recorded run on the Ring Developer Playground, with the evidence behind every alert.

Observed on the Ring Developer Playground

Recorded events

Five events were simulated in the Ring Developer Playground. Two rules were deployed: the package rule and the vehicle rule.

The two package events fired only the package rule, the two vehicle events fired only the vehicle rule, and the bird event fired neither rule.

For each recorded event, whether each deployed rule fired, with its score.
Event	Package rule	Vehicle rule
1 Birds	droppedscore −0.50	droppedscore −0.50
2 Vehicle	droppedscore −0.50	firedscore +0.45
3 Package	firedscore +0.45	droppedscore −0.50
4 Vehicle	droppedscore −0.50	firedscore +0.45
5 Package	firedscore +0.45	droppedscore −0.50

A rule fires when its score is above the threshold τ (0.00 for both rules here). The score is the rule’s robustness on the facts Claude read: above the threshold the rule held, and the size reflects how confident the facts were. Stage 1 means the decision was made on the fast model’s facts. In a witness, ρ is the same measure for one part of the rule.

Event 3 of 5

Playground recording 07: birds at snowy feeders

Claude’s one-line summary of the clip

Several birds, including a red-bellied woodpecker and a northern cardinal, visit two snow-covered bird feeders in a winter yard, with no people or packages involved.

All 16 frames Claude read

The 16 frames Claude read from Playground recording 07: birds at snowy feeders, in time order, left to right and top to bottom, from 1.23 s to 38.04 s — Sixteen frames sampled across the clip, in time order, left to right and top to bottom. Each column of the facts below is one of them.

The facts Claude read

b1 animal: small dark bird, songbird
b2 animal: red bellied woodpecker
b3 animal: northern cardinal, red bird

Frame 1, 1.23 sFrame 16, 38.04 s

present(b2)
In 16 of 16 frames; confidence high
present(b1)
In 11 of 16 frames; confidence high
present(b3)
In 7 of 16 frames; confidence high, med, low

Darker cells are higher confidence; an empty cell means the fact was not asserted in that frame.

What the two deployed rules decided

Package rule

Dropped

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Vehicle rule

Dropped

There is a vehicle v such that v is in the driveway.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Playground recording 05: cars in a parking lot

Claude’s one-line summary of the clip

A car drives through the parking lot at mid-day while a second car arrives and parks in the distance, with no people or packages appearing in the Ring views during the clip.

All 16 frames Claude read

The 16 frames Claude read from Playground recording 05: cars in a parking lot, in time order, left to right and top to bottom, from 0.67 s to 20.80 s — Sixteen frames sampled across the clip, in time order, left to right and top to bottom. Each column of the facts below is one of them.

The facts Claude read

v1 vehicle: sedan, silver
v2 vehicle: suv, dark
v3 vehicle: suv, white
v4 vehicle: hatchback, silver
v5 vehicle: sedan, grey
v6 vehicle: minivan, silver
v7 vehicle: sedan, silver

Frame 1, 0.67 sFrame 16, 20.80 s

in_zone(v2, driveway)
In 8 of 16 frames; confidence high, low
in_zone(v6, driveway)
In 7 of 16 frames; confidence high
in_zone(v3, driveway)
In 7 of 16 frames; confidence high
in_zone(v7, driveway)
In 5 of 16 frames; confidence med, low
in_zone(v4, driveway)
In 2 of 16 frames; confidence high
in_zone(v1, driveway)
In 1 of 16 frames; confidence low

Show 2 more facts

enters(v4, driveway)
In 1 of 16 frames; confidence med
in_zone(v5, driveway)
In 1 of 16 frames; confidence high

Darker cells are higher confidence; an empty cell means the fact was not asserted in that frame.

What the two deployed rules decided

Package rule

Dropped

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Vehicle rule

Fired

There is a vehicle v such that v is in the driveway.

Score: +0.45
Threshold τ: 0.00
Stage: 1

Why it fired

There is a vehicle v such that v is in the driveway.

Bound to v = v2 (vehicle: suv, dark)

Seen in a frame
at 0.67 s; ρ +0.45
in_zone(v, driveway)

Playground recording 19: box seen on the steps and the porch

Claude’s one-line summary of the clip

The clip is essentially static: a cardboard box sits on the front steps and a small object by the porch remains unchanged while snow covers the yard, with no people or vehicles appearing across all 16 frames.

All 16 frames Claude read

The 16 frames Claude read from Playground recording 19: box seen on the steps and the porch, in time order, left to right and top to bottom, from 0.99 s to 30.71 s — Sixteen frames sampled across the clip, in time order, left to right and top to bottom. Each column of the facts below is one of them.

The facts Claude read

k1 package: cardboard box
o1 object: watering can or bottle, blue cap

Frame 1, 0.99 sFrame 16, 30.71 s

in_zone(k1, steps)
In 16 of 16 frames; confidence high
in_zone(o1, porch)
In 16 of 16 frames; confidence low

Darker cells are higher confidence; an empty cell means the fact was not asserted in that frame.

What the two deployed rules decided

Package rule

Fired

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Score: +0.45
Threshold τ: 0.00
Stage: 1

Why it fired

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Bound to k = k1 (package: cardboard box)

Held continuously
from 0.99 s to 15.99 s (15 s); ρ +0.45
holds_for >= 15 (in_zone(k, steps) or in_zone(k, porch))
Seen in a frame
at 0.99 s; ρ +0.45
in_zone(k, steps)

Vehicle rule

Dropped

There is a vehicle v such that v is in the driveway.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Playground recording 06: cars in a parking lot

Claude’s one-line summary of the clip

Cars drive through the parking lot and a car pulls into the distant driveway area while no people are seen on the porch or steps during the clip.

All 16 frames Claude read

The 16 frames Claude read from Playground recording 06: cars in a parking lot, in time order, left to right and top to bottom, from 0.67 s to 20.80 s — Sixteen frames sampled across the clip, in time order, left to right and top to bottom. Each column of the facts below is one of them.

The facts Claude read

v1 vehicle: silver suv
v2 vehicle: white van
v3 vehicle: white suv
v4 vehicle: dark sedan
v5 vehicle: silver hatchback
v6 vehicle: grey car
v7 vehicle: dark suv
v8 vehicle: silver car
v9 vehicle: white car

Frame 1, 0.67 sFrame 16, 20.80 s

in_zone(v1, driveway)
In 7 of 16 frames; confidence high
in_zone(v2, driveway)
In 7 of 16 frames; confidence high
in_zone(v3, driveway)
In 7 of 16 frames; confidence high
in_zone(v7, driveway)
In 6 of 16 frames; confidence high, med, low
in_zone(v4, driveway)
In 1 of 16 frames; confidence med
in_zone(v5, driveway)
In 1 of 16 frames; confidence high

Show 6 more facts

enters(v5, driveway)
In 1 of 16 frames; confidence med
in_zone(v6, driveway)
In 1 of 16 frames; confidence high
enters(v6, driveway)
In 1 of 16 frames; confidence med
in_zone(v8, driveway)
In 1 of 16 frames; confidence high
enters(v8, driveway)
In 1 of 16 frames; confidence med
in_zone(v9, driveway)
In 1 of 16 frames; confidence low

Darker cells are higher confidence; an empty cell means the fact was not asserted in that frame.

What the two deployed rules decided

Package rule

Dropped

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Vehicle rule

Fired

There is a vehicle v such that v is in the driveway.

Score: +0.45
Threshold τ: 0.00
Stage: 1

Why it fired

There is a vehicle v such that v is in the driveway.

Bound to v = v1 (vehicle: silver suv)

Seen in a frame
at 0.67 s; ρ +0.45
in_zone(v, driveway)

Playground recording 20: box seen on the steps and the porch

Claude’s one-line summary of the clip

The clip shows a static view of a snowy porch with a cardboard box and a bottle-like object near the steps, with no people or vehicles appearing across all 16 frames.

All 16 frames Claude read

The 16 frames Claude read from Playground recording 20: box seen on the steps and the porch, in time order, left to right and top to bottom, from 0.99 s to 30.71 s — Sixteen frames sampled across the clip, in time order, left to right and top to bottom. Each column of the facts below is one of them.

The facts Claude read

k1 package: cardboard box
o1 object: blue bottle, white

Frame 1, 0.99 sFrame 16, 30.71 s

in_zone(k1, porch)
In 16 of 16 frames; confidence high
in_zone(o1, steps)
In 16 of 16 frames; confidence low

Darker cells are higher confidence; an empty cell means the fact was not asserted in that frame.

What the two deployed rules decided

Package rule

Fired

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Score: +0.45
Threshold τ: 0.00
Stage: 1

Why it fired

There is a package k such that (k is on the steps or k is on the porch) continuously for at least 15 s.

Bound to k = k1 (package: cardboard box)

Held continuously
from 0.99 s to 15.99 s (15 s); ρ +0.45
holds_for >= 15 (in_zone(k, steps) or in_zone(k, porch))
Seen in a frame
at 0.99 s; ρ +0.45
in_zone(k, porch)

Vehicle rule

Dropped

There is a vehicle v such that v is in the driveway.

Score: −0.50
Threshold τ: 0.00
Stage: 1

Nothing to explain: the score is not above the threshold, so no alert was raised and no witness was kept.

Cost, and the live moment

How the events were produced, and what reading one costs.

How these events were produced

Simulated in the Ring Developer Playground; events were read by polling event history.

Reading an event with Claude on Amazon Bedrock costs $0.0014–$0.0015 per watched event in our live runs. Every rule after that runs on the stored facts.