{
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  "generated_at_utc": "2026-10-06T23:09:49Z",
  "record_id": "VXI-EXT-GVISOR-02-v1",
  "record_kind": "external_reference",
  "title": "gVisor: Sentry interface boundary",
  "system": "gVisor",
  "evidence_family": "execution_isolation",
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  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does a sandboxed workload directly use the host kernel's full interface through gVisor?",
  "near_questions": [
    "What role does the gVisor Sentry play?",
    "Can a sandboxed application assume every Linux interface is available?",
    "Does gVisor avoid every interaction with the host?",
    "How should system-call compatibility be reviewed?",
    "What source explains the userspace application kernel?",
    "Does interface mediation prove that an application will run?",
    "What should a receipt distinguish about host access?",
    "Can a workload depend on an unsupported kernel feature?",
    "Which evidence supports a specific gVisor compatibility claim?",
    "Can gVisor architecture establish faster execution?",
    "What runtime context belongs in a Sentry boundary review?",
    "How can interface support limit an agent workload?"
  ],
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    {
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      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "complete Linux compatibility",
    "absence of all host interaction",
    "a measured performance advantage"
  ],
  "public_summary": "gVisor's Sentry handles workload system calls in userspace and mediates necessary host interaction. Workload compatibility and the configured access boundary need separate assessment.",
  "related_record_ids": [
    "VXI-EXT-GVISOR-01-v1",
    "VXI-EXT-GVISOR-03-v1",
    "VXI-EXT-GVISOR-04-v1"
  ],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "Introduction to gVisor security",
    "source_url": "https://gvisor.dev/docs/architecture_guide/intro/",
    "checked_on": "2026-10-07",
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    "revalidation": "Recheck the primary source, version and deployment context before paid delivery."
  },
  "answer_policy": {
    "classification": "DOCUMENTED_WITH_DEPLOYMENT_BOUNDARY",
    "bounded_answer": "gVisor's Sentry handles workload system calls in userspace and mediates necessary host interaction. Workload compatibility and the configured access boundary need separate assessment.",
    "required_buyer_context": "Required workload interfaces, selected runtime configuration and compatibility observations.",
    "missing_evidence": "A broader claim needs evidence matching the intended use. Payment does not upgrade the evidence state."
  },
  "private_boundary": "Raw logs, thresholds, private paths, source code, protected mechanisms and reconstruction-level details are excluded from public and paid delivery.",
  "paid_access_note": "The public answer and boundaries are free. Pay first, then email a concrete question for asynchronous manual review, receipt or scoped export. No fixed turnaround or automatic API access is promised.",
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    "request_workflow": "/varexis-index/request-workflow.json",
    "service_id": "evidence_receipt",
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    "accepting_paid_requests": true,
    "operational_status": "PAID_ASYNC_MANUAL_FULFILMENT",
    "checkout_url": "https://buy.stripe.com/28EaEXaPe7bBdGLgXSdwc05"
  },
  "authority_boundary": "VAREXIS-INDEX informs evidence reliance. It does not provide advice, certification, deployment authority, security assurance, production approval, or guarantee.",
  "human_page": "/varexis-index/catalog.html#gvisor-sentry-boundary",
  "machine_readable_record": "/varexis-index/records/gvisor-sentry-boundary.json"
}