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Release Device Tools 0.2.0
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zemion
2026-09-02 13:08:36 +02:00
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@@ -6,6 +6,9 @@ A local browser capability and privacy lab. It shows useful platform evidence wi
- Passive inventory for secure/top-level context, display/viewport/DPR, touch/pointer/hover, accessibility media queries, media constraints, codec declarations, storage/PWA and browser device-API presence.
- Explicit individual probes for permission state, storage estimate/persistence, WebGL limits, WebGPU adapter presence, media-device counts, battery, network hints and camera/microphone/screen access.
- Explainable failures that distinguish a missing API, insecure or embedded context, Permissions Policy, user permission, and unavailable/busy operating-system devices, with concrete remediation.
- Toolbox application compatibility analysis from pasted manifest JSON, including legacy requirements plus required/optional capability profiles and unknown-capability evidence.
- An explicit MediaCapabilities decoding lab for video/audio codec, dimensions, rate and bitrate, with support/smoothness/power-efficiency results and a separately downloadable bucketed report.
- Camera, microphone and screen streams are never recorded and every returned track stops immediately.
- WebGL deliberately avoids unmasked vendor/renderer extensions; media device IDs and labels are discarded.
- Deterministic redacted JSON/CSV reports with broad buckets for high-entropy values and no timestamp, user agent, locale, identifier or score.
@@ -13,13 +16,13 @@ A local browser capability and privacy lab. It shows useful platform evidence wi
## Privacy boundary
The passive inventory runs locally on load and does not request permission. Optional probes run only after their named button is pressed; buttons labelled “may prompt” can show browser or operating-system UI. The application performs no canvas/audio sample fingerprinting, persistent storage, telemetry or external request.
The passive inventory runs locally on load and does not request permission. Optional probes run only after their named button is pressed; buttons labelled “may prompt” can show browser or operating-system UI. Application manifests are treated as inert JSON and no referenced code is loaded. MediaCapabilities checks are likewise opt-in because smoothness and power-efficiency answers can depend on the device. The application performs no canvas/audio sample fingerprinting, persistent storage, telemetry or external request.
Downloaded reports are deliberately less precise than the on-screen local view. They bucket exact dimensions, pixel ratio, storage, graphics limits, hardware counts, battery timing and connection quality. This is a diagnostics report, not proof that an API will work in every embedded or enterprise-policy context.
## Development
Use Node.js 22+ and npm 11. Run `npm ci`, `npm run check`, `npm run test:browser`, then `npm run package:release -- --force`. The deterministic artifact is `release/device-tools-0.1.0.zip` with a SHA-256 sidecar.
Use Node.js 22+ and npm 11. Run `npm ci`, `npm run check`, `npm run test:browser`, then `npm run package:release -- --force`. The deterministic artifact is `release/device-tools-0.2.0.zip` with a SHA-256 sidecar.
## Licence