### SwiftUI Agent Skill - functional smoke test (host: macOS aarch64, CLT only, no full Xcode)
### date: 2026-07-28T11:04:06Z

## record_trace.py --help
usage: record_trace.py [-h] [--list-devices | --list-templates]
                       [--template TEMPLATE] [--device DEVICE]
                       [--output OUTPUT] [--time-limit TIME_LIMIT]
RESULT: PASS (CLI loads, prints usage)

## analyze_trace.py --help
usage: analyze_trace.py [-h] --trace TRACE [--output OUTPUT] [--top TOP]
                        [--top-hitches TOP_HITCHES] [--window WINDOW]
                        [--run RUN] [--list-runs] [--list-logs]
RESULT: PASS (CLI loads, prints usage)

## pytest tests/
...                                                                      [100%]
3 passed in 0.01s

## analyze_trace.py --trace /tmp/nope.trace (error handling)
error: trace not found: /tmp/nope.trace
RESULT: PASS (clean 'trace not found' error, no traceback)

## record_trace.py --list-devices (needs full Xcode)
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['xctrace', 'list', 'devices']' returned non-zero exit status 1.
RESULT: host has Command Line Tools only; xctrace is a stub -> CalledProcessError traceback (uncaught)

## functional: hangs parser on synthetic xctrace-export XML (monkeypatched)
available: True
schema_used: potential-hangs
count: 3
worst_duration_ms: 1500.0
total_duration_ms: 2200.0
severity_buckets: {'lt_250ms': 1, '250ms_1s': 1, 'gt_1s': 1}
top_offenders:
   {'start_ms': 1000.0, 'duration_ms': 1500.0, 'hang_type': 'Hang', 'thread': 'Background Thread'}
   {'start_ms': 200.0, 'duration_ms': 600.0, 'hang_type': 'Hang', 'thread': 'Main Thread'}
   {'start_ms': 0.0, 'duration_ms': 100.0, 'hang_type': 'Microhang', 'thread': 'Main Thread'}

ALL ASSERTIONS PASSED
RESULT: PASS (3 hangs parsed, ns->ms correct, severity buckets correct, sorted desc)