incomplete

Native WebGPU validation harness

This report separates published implementation state from accepted evidence. Every value below comes from the schema-v2 registry, the emitted source manifest, or promoted same-lab artifacts.

Open demo Owning skill Published source manifest Registry JSON Canonical source

Lab id: webgpu-validation-harness
Kind: Canonical Lab
Owning skill: Visual Validation
Execution: rendering
Three.js: 0.185.1
Source hash: sha256:1e1a50d6f63a2ca0930c75ea9f7b89502ccc00c4c1823dfb625ddba09bc2f9b9
Published bundle hash: sha256:6d08fd8916eefbb493eb42c010ce0704898ea6094b76658861e46a841e1029c7
Build revision: sha256:6c7881ab73865696d689489de465e1cd67e1f2242d43641279abac777df0479b
Renderer: Not promoted
Backend: Not promoted
Evidence contract: v2
Tracked release bundle: Absent

Claim verdicts

canonicalAcceptanceINSUFFICIENT_EVIDENCE

hardwarePerformanceNOT_CLAIMED

Promoted same-lab media

No same-lab evidence image is promoted for this report. The page intentionally shows status and proof requirements instead of substitute art.

Required capability and runtime proof

Capabilities

native-webgpuincomplete

renderer.backend.isWebGPUBackend after await renderer.init()

render-target-readbackincomplete

RGBA8 capture target copied through an aligned WebGPU row layout

Runtime proof

renderer-initincomplete

Native browser subject initialization and backend gate

mrt-readbackincomplete

Actual output, normal, and emissive render-target readback

schema-v2incomplete

Fourteen semantic JSON artifacts plus required real images

lifecycleincomplete

50-100 create/render/resize/mode/tier/dispose cycles

Capture state

Field	Published value
Primary route	`/demos/webgpu-validation-harness/`
Cameras	`near, design, far`
Seeds	`0x00000001, 0x9e3779b9`
Modes	`final, no-post, normal, emissive`
Capture time	`Not present in the promoted report data`
Adapter identity	`Not promoted`
Raw readback hashes	`Not promoted`

Fixed routes

Kind	Id	Startup state	Status
scenario	`browser-capture`	`{"scenario":"browser-capture"}`	incomplete
scenario	`pipeline-graph-inspector`	`{"scenario":"pipeline-graph-inspector"}`	incomplete
scenario	`resource-ledger`	`{"scenario":"resource-ledger"}`	incomplete
scenario	`timing-and-governor`	`{"scenario":"timing-and-governor"}`	incomplete
scenario	`lifecycle-and-leaks`	`{"scenario":"lifecycle-and-leaks"}`	incomplete
scenario	`visual-error-metrics`	`{"scenario":"visual-error-metrics"}`	incomplete
scenario	`mutation-gallery`	`{"scenario":"mutation-gallery"}`	incomplete
scenario	`artifact-inspector`	`{"scenario":"artifact-inspector"}`	incomplete
mechanism	`aligned-readback`	`{"scenario":"browser-capture","mode":"final"}`	incomplete
mechanism	`claim-verdicts`	`{"scenario":"artifact-inspector","mode":"emissive"}`	incomplete
mechanism	`gpu-timestamps`	`{"scenario":"timing-and-governor","mode":"final"}`	incomplete
mechanism	`resource-inventory`	`{"scenario":"resource-ledger","mode":"normal"}`	incomplete
mechanism	`visual-errors`	`{"scenario":"visual-error-metrics","mode":"normal"}`	incomplete
mechanism	`lifecycle-trend`	`{"scenario":"lifecycle-and-leaks","mode":"final"}`	incomplete
tier	`schema-fixture`	`{"tier":"schema-fixture"}`	incomplete
tier	`webgpu-correctness`	`{"tier":"webgpu-correctness"}`	incomplete
tier	`target-performance`	`{"tier":"target-performance"}`	incomplete
tier	`governor-stress`	`{"tier":"governor-stress"}`	incomplete
tier	`release`	`{"tier":"release"}`	incomplete

Locked tier contracts

schema-fixture · incomplete

{
  "targetClass": "schema-transport-only",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "scenePassScale": 1,
    "dprCap": 1
  },
  "mechanismLimits": {
    "runtimeClaims": 0
  },
  "resourceLimits": {
    "publishable": false
  },
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "schema v2",
    "claim separation",
    "fixture quarantine"
  ]
}

webgpu-correctness · incomplete

{
  "targetClass": "current-adapter-correctness",
  "frameTargetMs": null,
  "resolutionPolicy": {
    "scenePassScale": 1,
    "dprCap": 2
  },
  "mechanismLimits": {
    "mrtAttachments": 3
  },
  "resourceLimits": {
    "lifecycleCyclesMinimum": 50,
    "lifecycleCyclesMaximum": 100
  },
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "native WebGPU",
    "real MRT",
    "aligned readback",
    "one output owner"
  ]
}

target-performance · incomplete

{
  "targetClass": "current-adapter-performance",
  "frameTargetMs": {
    "value": 16.67,
    "unit": "ms",
    "label": "Gated",
    "source": "60 Hz current-adapter release target"
  },
  "resolutionPolicy": {
    "scenePassScale": 1,
    "dprCap": 1
  },
  "mechanismLimits": {
    "gpuTimestampsRequired": true
  },
  "resourceLimits": {
    "sustainedTraceRequired": true
  },
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "native WebGPU",
    "timestamp-backed GPU attribution"
  ]
}

governor-stress · incomplete

{
  "targetClass": "current-adapter-governor-stress",
  "frameTargetMs": {
    "value": 16.67,
    "unit": "ms",
    "label": "Gated",
    "source": "60 Hz current-adapter release target"
  },
  "resolutionPolicy": {
    "scenePassScale": 0.5,
    "dprCap": 1
  },
  "mechanismLimits": {
    "governorTraceRequired": true
  },
  "resourceLimits": {
    "oscillationAllowed": false
  },
  "degradationFromPrevious": [
    "scene pass resolution scale reduced to 0.5"
  ],
  "preservedInvariants": [
    "native WebGPU",
    "MRT semantics",
    "output ownership"
  ]
}

release · incomplete

{
  "targetClass": "current-adapter-release",
  "frameTargetMs": {
    "value": 16.67,
    "unit": "ms",
    "label": "Gated",
    "source": "60 Hz current-adapter release target"
  },
  "resolutionPolicy": {
    "scenePassScale": 1,
    "dprCap": 1
  },
  "mechanismLimits": {
    "allClaimClassesResolved": true
  },
  "resourceLimits": {
    "lifecycleCyclesMinimum": 50,
    "lifecycleCyclesMaximum": 100
  },
  "degradationFromPrevious": [],
  "preservedInvariants": [
    "native WebGPU",
    "schema v2",
    "real images",
    "lifecycle stability"
  ]
}

Limitations

No tracked accepted v2 runtime bundle is published for this source hash.
2 required capability records remain incomplete.
4 required runtime-proof records remain incomplete.
No current-hardware performance claim is published without named-adapter timestamp evidence.