asc-crash-triage

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• SKILL.md

SKILL.md (first lines)

# asc crash triage

Use this skill to fetch, analyze, and summarize TestFlight crash reports, beta feedback, and performance diagnostics.

## Workflow

1. Resolve the app ID if not provided (use `asc apps list`).
2. Fetch data with the appropriate command, using `--output json` for responses that will be parsed. For `performance download`, `--output` is the destination file path.
3. Parse JSON output and present a human-readable summary.

## TestFlight crash reports

List recent crashes (newest first):

- `asc testflight crashes list --app "APP_ID" --sort -createdDate --limit 10`
- Filter by build: `asc testflight crashes list --app "APP_ID" --build-id "BUILD_ID" --sort -createdDate --limit 10`
- Filter by device/OS: `asc testflight crashes list --app "APP_ID" --device-model "iPhone16,2" --os-version "18.0"`
- All crashes: `asc testflight crashes list --app "APP_ID" --paginate`
- Table view: `asc testflight crashes list --app "APP_ID" --sort -createdDate --limit 10 --output table`

## TestFlight beta feedback

List recent feedback (newest first):

- `asc testflight feedback list --app "APP_ID" --sort -createdDate --limit 10`
- With screenshots: `asc testflight feedback list --app "APP_ID" --sort -createdDate --limit 10 --include-screenshots`
- Filter by build: `asc testflight feedback list --app "APP_ID" --build-id "BUILD_ID" --sort -createdDate`
- All feedback: `asc testflight feedback list --app "APP_ID" --paginate`

## Performance diagnostics (hangs, disk writes, launches)

Requires a build ID. Resolve via `asc builds info --app "APP_ID" --latest --platform IOS` or `asc builds list --app "APP_ID" --sort -uploadedDate --limit 5`.

- List diagnostic signatures: `asc performance diagnostics list --build-id "BUILD_ID"`
- Filter by type: `asc performance diagnostics list --build-id "BUILD_ID" --diagnostic-type "HANGS"`
  - Types: `HANGS`, `DISK_WRITES`, `LAUNCHES`
- View logs for a signature: `asc performance diagnostics view --id "SIGNATURE_ID"`
- Download all metrics: `asc performance download --build-id "BUILD_ID" --output ./metrics.json`

## Resolving IDs

- App ID from name: `asc apps list --name "AppName"` or `asc apps list --bundle-id "com.example.app"`
- Latest build ID: `asc builds info --app "APP_ID" --latest --platform IOS`
- Recent builds: `asc builds list --app "APP_ID" --sort -uploadedDate --limit 5`
- Set default: `export ASC_APP_ID="APP_ID"`

## Summary format

When presenting results, organize by severity and frequency:

1. **Total count** — how many crashes/feedbacks in the result set.
2. **Top crash signatures** — group by exception type or crash reason, ranked by count.
3. **Affected builds** — which build versions are impacted.
4. **Device & OS breakdown** — most affected device models and OS versions.
5. **Timeline** — when crashes started or spiked.

For performance diagnostics, highlight the highest-weight signatures first.

## Notes

- Read-command output defaults to table in a terminal and JSON in pipes or CI. Select the format explicitly when parsing results.
- Use `--paginate` to fetch all pages when doing a full analysis.
- Use `--pretty` with JSON for debugging command output.
- Crash data from App Store Connect may have 24-48h delay.

From rorkai/app-store-connect-cli-skills, MIT.

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