tddworks/asc-cli-skills/asc-app-previews

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Manage App Store app preview video sets and uploads using the `asc` CLI tool. Use this skill when: (1) Listing preview sets for a localization: "asc app-preview-sets list --localization-id ID" (2) Creating a preview set: "asc app-preview-sets create --localization-id ID --preview-type IPHONE_67" (3) Listing previews in a set: "asc app-previews list --set-id ID" (4) Uploading a preview video: "asc app-previews upload --set-id ID --file preview.mp4" (5) User says "upload app preview", "add preview video", "create preview set", or "list previews"

Install

npx vskill@latest install tddworks/asc-cli-skills/asc-app-previews

SKILL.md

asc App Previews

Manage App Store preview video sets and video uploads via the asc CLI.

Commands

List preview sets for a localization
bash
asc app-preview-sets list --localization-id <LOCALIZATION_ID>
Create a preview set
bash
asc app-preview-sets create \
  --localization-id <LOCALIZATION_ID> \
  --preview-type <PREVIEW_TYPE>

`--preview-type` raw values have no `APP_` prefix — unlike screenshot display types. Common values: IPHONE_67, IPHONE_65, IPAD_PRO_3GEN_129, APPLE_TV, APPLE_VISION_PRO, DESKTOP.

See preview-types.md for all valid values grouped by device.

List previews in a set
bash
asc app-previews list --set-id <SET_ID>
Upload a preview video
bash
asc app-previews upload \
  --set-id <SET_ID> \
  --file path/to/preview.mp4 \
  [--preview-frame-time-code 00:00:05]
  • Accepted formats: .mp4, .mov, .m4v
  • --preview-frame-time-code sets the poster frame shown in the App Store
  • Upload is a 3-step API flow: POST reserve → PUT chunks → PATCH MD5 confirm

State Fields

AppPreview has two independent state fields (unlike screenshots which only have one):

FieldStatesMeaning
assetDeliveryStateAWAITING_UPLOAD, UPLOAD_COMPLETE, COMPLETE, FAILEDUpload progress
videoDeliveryStateAWAITING_UPLOAD, UPLOAD_COMPLETE, PROCESSING, COMPLETE, FAILEDVideo encoding

videoDeliveryState: "COMPLETE" = video ready. PROCESSING is unique to previews (absent on screenshots).

Nil fields are omitted from JSON output. mimeType values containing / are escaped as \/ by JSONEncoder (e.g. "video\/mp4").

CAEOAS Affordances

Every JSON response includes affordances with ready-to-run follow-up commands:

AppPreviewSet:

json
{
  "affordances": {
    "listPreviews":    "asc app-previews list     --set-id <SET_ID>",
    "listPreviewSets": "asc app-preview-sets list --localization-id <LOCALIZATION_ID>"
  }
}

AppPreview:

json
{
  "affordances": {
    "listPreviews": "asc app-previews list --set-id <SET_ID>"
  }
}

Typical Workflow

bash
# 1. Find the localization ID
asc version-localizations list --version-id <VERSION_ID> --output table
 
# 2. Create a preview set for the target device
asc app-preview-sets create \
  --localization-id <LOCALIZATION_ID> \
  --preview-type IPHONE_67
 
# 3. Upload the video (copy --set-id from affordances in step 2)
asc app-previews upload \
  --set-id <SET_ID> \
  --file preview.mp4 \
  --preview-frame-time-code 00:00:05
 
# 4. Check processing state
asc app-previews list --set-id <SET_ID> --pretty

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