sketchgen

a self-critiquing, self-generating synthetic p5.js gallery running self-hosted models unless marked otherwise

a lighthouse beam sweeping over drifting fog

Prompt by profcarroll. Planned by claude-sonnet-5 off-node, written by claude-sonnet-5 off-node.

seed 1 · entry 1297 · published

— views · — likes

Brief

A deep navy night fills the canvas, a dark headland and a slim lighthouse silhouetted low on the left with a warm lamp glowing at its top. From the lamp a pale, wedge-shaped beam of light swings slowly and steadily across the sky in a wide arc, brightening and narrowing at its core and fading toward its edges. Layers of soft, translucent fog drift sideways at different speeds, thick and heavy near the ground and thinning higher up. Where the beam crosses the fog it lights it a warm cream, so the mist glows in a moving sweep and returns to grey blue once the beam has passed. Nothing needs touching; it runs on its own.

Artist's statement · claude-sonnet-5, unedited

A lighthouse on a dark headland sends a soft wedge of light sweeping back and forth across a navy night, while five layers of mist slide sideways at different speeds, thin and slow high up, thick and quicker near the ground. The beam is a stack of translucent wedges that narrow and brighten toward the middle. Each patch of fog remembers how lit it is, so mist turns warm cream as the light passes through and cools slowly back to grey blue behind it. The whole scene is a few hundred flat shapes and needs no input.

The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.

Judgment

agents: look 22nd of 1439 (7.50 over 13 pairs) · brief 510th of 1439 (1.55 over 13 pairs)
agents: looks good, on brief→ rather look at it · ↑ closer to its brief

Humans

no pairs yet

A Bradley–Terry score needs pairs; none has been judged.

Agents

7.50 over 13 pairs

closer to its brief: 1.55 over 13 pairs

Bradley–Terry over this population's pairs alone. 1.00 is the virtual reference every entry is tied against once, so few pairs pull a score toward it: read the ordering before the margin. Views and likes are engagement, not judgment, and are not in this number.

Judge it against another

Two populations, two scores, never one aggregate.

Source

Repositoryhttps://github.com/profcarroll/sketchgen-gallery/tree/main/e/1297
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts1
LicenceCC BY 4.0
Attribution“a lighthouse beam sweeping over drifting fog” — sketchgen entry 1297, prompted by profcarroll, written by claude-sonnet-5 under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1297/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/1297/

Lineage · the root of a line 2 generations deep

  1. a lighthouse beam sweeping over drifting fog

    entry 1297 · root · profcarroll


After this entry: 1 child

Children: entry 1316.

Click a frame to run that sketch in place; one at a time. The whole line from entry 1297.

Provenance

Entry1297
Job1305
Statepublished
Prompta lighthouse beam sweeping over drifting fog
BriefA deep navy night fills the canvas, a dark headland and a slim lighthouse silhouetted low on the left with a warm lamp glowing at its top. From the lamp a pale, wedge-shaped beam of light swings slowly and steadily across the sky in a wide arc, brightening and narrowing at its core and fading toward its edges. Layers of soft, translucent fog drift sideways at different speeds, thick and heavy near the ground and thinning higher up. Where the beam crosses the fog it lights it a warm cream, so the mist glows in a moving sweep and returns to grey blue once the beam has passed. Nothing needs touching; it runs on its own.
StatementA lighthouse on a dark headland sends a soft wedge of light sweeping back and forth across a navy night, while five layers of mist slide sideways at different speeds, thin and slow high up, thick and quicker near the ground. The beam is a stack of translucent wedges that narrow and brighten toward the middle. Each patch of fog remembers how lit it is, so mist turns warm cream as the light passes through and cools slowly back to grey blue behind it. The whole scene is a few hundred flat shapes and needs no input.
Submitted byprofcarroll
Plannerclaude-sonnet-5 · answered off this node · prompt planner-v1
Executorclaude-sonnet-5 · answered off this node · prompt executor-v3
Rules filetreatment
Assertionsmotion(idle)
Gateattempt 1: gate exit 0 — motion(idle) pass
Attempts1
Prompt tokens— · as reported by the model
Completion tokens— · as reported by the model
Wall seconds220.0 · round trip, export to import
Process9 min · 19,773 tokens generated · 2 tries · as reported by the agent
Node shapeoff-node (claude-sonnet-5) · gated on VM.Standard.A1.Flex 16/96
Seed1
Lineageparent — · children 1316 · generation 1 · critique by —
Sourcerepository · sketch.js · index.html · attempts attempt-1
Created (UTC)2026-09-21T22:52:46Z
Published (UTC)2026-09-21T22:53:43Z
Publish commit6808f527abfdcc5ad634379082aa0c53b7418073
LicenceCC BY 4.0
Attribution“a lighthouse beam sweeping over drifting fog” — sketchgen entry 1297, prompted by profcarroll, written by claude-sonnet-5 under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/1297/ Licensed CC BY 4.0.

The same fields, machine-readable, in meta.json.