{
  "verdict": "reproduced",
  "impact": "none",
  "confidence": "certain",
  "reproduce": {
    "build": "cc -O -o /tmp/mirror_poc mirror_poc.c",
    "run": "/tmp/mirror_poc /mnt/f1 nodata && /tmp/mirror_poc /mnt/f1 readback",
    "expected": "baseline: record obj=1234 dlen=0 IS installed (dead skip case); patched (fix.diff): mrec consumed but no record created"
  },
  "kernel_refs": ["sys/vfs/hammer/hammer_mirror.c:429", "sys/vfs/hammer/hammer_mirror.c:442", "sys/vfs/hammer/hammer_ioctl.h:383"],
  "artifacts": ["README.md", "VERDICT.md", "mirror_poc.c", "build.sh", "run.sh", "run.log", "run.fixed.log", "env.txt", "fix.diff", "verdict.json", "manifest.json"]
}