XZBT/docs/evidence/phase0/2026-09-04-user-run-v3.md

Phase 0 version 3 — worklet loading verified

Result: Engine-owned data-URL worklet loaded and connected in the user's direct-file Chrome session
Source: User-supplied version 3 evidence
Page started: 2026-09-05T02:37:48.163Z
Worklet attempt: 2026-09-05T02:38:39.380Z
Artifact SHA-256: 97D6909953F1F22E5BF0CA8AD653605D57A078AB3CCDEDFA509C5E9B0C1A4B2A

Timestamps are UTC; both fall on September 4 in America/Los_Angeles. This record uses the user's final version 3 snapshot after the worklet button was pressed. The earlier snapshot from the same page load contained no worklet attempt and is not used as a worklet pass.

Verified observations

• The page ran at the expected file:///G:/.vibe/XZBT/prototypes/phase0/XZBT-phase0-probe.html URL in Chrome 152, with secureContext: true.
• addModule and node construction completed. The attempt reached connect node, returned loaded and connected, and recorded moduleURLScheme: "data:" and moduleSourceBytes: 226.
• AudioContext state was running before and after the attempt at 48000 Hz. The user marked the native test tone as heard; the tone's nodes were disconnected when it ended.
• No errors or page security-policy violations were recorded in this run.
• Both exhibits, Blue Study selection, parameters, and master volume restored on page load, with zero new saves. The saved timestamp matches the earlier version 1 run.

The version 3 change resolves the observed Blob-module loading blocker in this tested environment. Use an engine-owned embedded data URL for this direct-file packaging path. Do not infer universal browser support or a complete audio-engine acceptance result from this small probe.

The silent processor's render callbacks are not independently measured; this gate verifies loading, construction, and connection. Native tone output and worklet loading are separate observations. Full synthesis correctness, output protection, performance, and long-running behavior remain later tests.

Gate accounting

GC1's engine-owned AudioWorklet loading check is passed using user-run browser evidence. The cache save check is supported by the earlier save transactions plus actual restoration in versions 2 and 3. Native audio unlock/tone and AudioContext suspend/resume are supported across the version 2 and version 3 records.

GC1 is not complete. Remaining evidence includes:

1. Confirmation of a full browser exit/restart, rather than only a new page load, and restoration of distinctive edited parameter/volume values.
2. Offline operation in an isolated test browser; the latest evidence still reports the browser online.
3. Rename/move storage behavior and the documented support boundary.
4. Session playback with storage failure injected, including the user-facing persistence message.
5. Browser profile/storage mode details and the remaining import/fallback checks. Directory APIs are optional enhancements; capability presence alone is not an import test.

The manual procedure covers these checks. No further worklet retest is needed unless its source, loader, or relevant policy changes. The agent's direct-file navigation restriction remains; no alternate browser automation was used.

Phase 0 still requires the remaining shared contracts and semantic traces after feasibility verification. Phase 1 has not started.