What problem does it solve? Testing audio announcement (AS) behavior in the wevehiculegen2 DM68 simulator is error-prone when relying only on unit tests, e2e scripts, or code reading, which cannot prove real runtime behavior. This Skill enforces manual in-app browser validation so MP3/TTS playback, multilingual output, loops, and terminus states are verified in the actual application flow. ## Core Features & Use Cases - Mandatory Browser Validation: Runs tests in the in-app browser at http://localhost:8080/#/simulateur instead of substituting shell, curl, or e2e evidence. - AS Object Checklist: Covers AS_ARRET, AS_PROCHAINARRET, AS_CONNEXION, AS_DEPART, and related objects, including terminus and sortie d'arret states. - Audio & Language Rules: Verifies MP3 file paths, TTS fallback, IVVSceneMultilingueIgnoreeAS behavior, and loop pause sources like TempsPauseAS. - Use Case: When debugging a multilingual MP3 announcement that falls back to TTS incorrectly, follow the workflow to confirm the composition contains the target AS object, prepare fake .mp3 files under core/bibmm, and record the exact AS output observed in the browser. ## Quick Start Open the simulator at http://localhost:8080/#/simulateur in the in-app browser and validate the target AS announcement by running the composition and recording the exact audio output.