{
  "@context": "https://schema.org",
  "@type": "TechArticle",
  "name": "Replay Capture Format",
  "dateModified": "2026-06-02T09:39:35.503Z",
  "container": "CBOR Sequences (RFC 8742) + zstd level 19",
  "layers": [
    "L0: syscall trace (gVisor PTRACE)",
    "L1: tool-call envelope (JSON-LD)",
    "L2: LLM prompt/completion (with logprobs)",
    "L3: network responses (VCR)",
    "L4: time + RNG seed"
  ],
  "sizeBudget": "P95 < 2MB per execution"
}