{
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  "record_id": "VXI-EXT-ICE05-GITHUB-ATTESTATION-PREDICATE-TRUST-01-v1",
  "record_kind": "external_reference",
  "title": "GitHub attestation predicate trust boundary",
  "system": "GitHub CLI",
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  "canonical_question": "Does a successfully verified GitHub artifact attestation establish that all provenance predicate claims are trustworthy?",
  "near_questions": [
    "Can a compromised workflow sign false provenance claims?",
    "Does signature validity prove predicate truth?",
    "Which attestation fields depend on trust in the producing workflow?",
    "Why is a trusted builder needed beyond a valid attestation?"
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    {
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    "Buyer implementation, live runtime enforcement, settled payment, certification or permission to act are not established.",
    "No expanded capabilities or licences for existing INDEX executables."
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  "public_summary": "The GitHub CLI warns that, apart from certificate information and verified timestamps, an attestation’s contents can be influenced by the workflow that produced it. A compromised producing context can falsify predicate data; verification must include trust in that context.",
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    "source_title": "GitHub CLI: gh attestation verify",
    "source_url": "https://cli.github.com/manual/gh_attestation_verify",
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    "required_buyer_context": "Verified signer and digest; Predicate claims; Expected builder/workflow policy; Evidence about the producing context. Buyer deployment not inspected.",
    "missing_evidence": "A broader claim needs evidence matching the intended use. Payment does not upgrade the evidence state."
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  "decision_profile": {
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      "statement": "The GitHub CLI warns that, apart from certificate information and verified timestamps, an attestation’s contents can be influenced by the workflow that produced it. A compromised producing context can falsify predicate data; verification must include trust in that context.",
      "source_ids": [
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    "review_inference": {
      "status": "review_inference",
      "statement": "Review github attestation predicate trust boundary before accepting the buyer claim. The SLSA record checks expected parameter agreement. This decision asks whether the producer can control the asserted predicate, even when values match an expectation. This is a documentation-review judgment, not an observed deployment outcome.",
      "source_ids": [
        "github-attestation-verify"
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    "buyer_evidence_required": [
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      "Predicate claims",
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      "statement": "Do not infer predicate truth from signature validity alone. Require an appropriate trusted-builder policy and leave unsupported build claims unresolved."
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    "unknown_finding": {
      "status": "unknown",
      "statement": "Buyer configuration, effective authority, complete usage and final business outcomes were not inspected."
    },
    "evidence_sources": [
      {
        "source_id": "github-attestation-verify",
        "url": "https://cli.github.com/manual/gh_attestation_verify",
        "final_url": "https://cli.github.com/manual/gh_attestation_verify",
        "captured_at_utc": "2026-10-29T00:50:20.614821+00:00",
        "status": 200,
        "content_type": "text/html; charset=utf-8",
        "bytes": 113893,
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        "title": "GitHub CLI: gh attestation verify",
        "hash_basis": "SHA-256 of captured HTTP response body bytes",
        "checked_on": "2026-10-29",
        "capture_status": 200,
        "claim_review_completed": true,
        "reviewed_sections": [
          "gh attestation verify"
        ],
        "version_context": "Rolling official documentation captured 2026-10-29; exact response hash is pinned, not a stable vendor release. Verify the deployed API/version and account feature availability. ",
        "rights_review": "Original factual paraphrase and attributed source metadata only. Captured documentation and code remain private; no source prose, examples, images or vendor marks are redistributed. No licence to vendor software or buyer assurance is granted."
      }
    ],
    "observed_deployment": false,
    "commercial_reliance_boundary": "Source documentation supports only the stated boundary. Existing licensed checkers analyse supported supplied declarations; they do not query these providers, verify live systems, settle payments or certify compliance.",
    "paid_value": {
      "decision_context": "Review github attestation predicate trust boundary before accepting the buyer claim. The SLSA record checks expected parameter agreement. This decision asks whether the producer can control the asserted predicate, even when values match an expectation.",
      "free": "Complete review, practical questions, source references and limitations; freely accessible and locally saveable.",
      "single_request": "Unavailable for this publication-only record; historical saved retrieval remains unchanged.",
      "evidence_receipt": "Unavailable for this publication-only record; no new paid retrieval entitlement.",
      "excluded": [
        "Fresh vendor research",
        "Live provider inspection",
        "Runtime enforcement or certification",
        "Expanded executable schemas or licences",
        "Native Coupa, Stripe Issuing, GitLab or Sigstore validation"
      ],
      "integrity": "Hashes identify content versions; they do not prove truth or provide a signature."
    },
    "revalidation": {
      "trigger": "Recheck the source and applicable API, account and configuration before current reliance. No monitoring or fresh research is included.",
      "specific_watch": "gh attestation verify"
    },
    "buyer_relevance": "Review github attestation predicate trust boundary before accepting the buyer claim. The SLSA record checks expected parameter agreement. This decision asks whether the producer can control the asserted predicate, even when values match an expectation.",
    "refusal_conditions": [
      "Do not infer predicate truth from signature validity alone. Require an appropriate trusted-builder policy and leave unsupported build claims unresolved.",
      "Do not infer buyer deployment conformance or successful business outcomes from source documentation."
    ]
  },
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    "niche_id": "ice05-audit",
    "label": "Audit, Provenance & Evidence Accountability",
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    "classification_label": "Audit, Provenance & Evidence Accountability",
    "topic_id": "audit",
    "buyer_intent": "Review github attestation predicate trust boundary before accepting the buyer claim. The SLSA record checks expected parameter agreement. This decision asks whether the producer can control the asserted predicate, even when values match an expectation.",
    "comparison_role": "supplementary_discovery"
  },
  "paid_access_note": "The full published answer and boundaries are free. Paid access saves the selected route and source versions, with an unsigned receipt when purchased. Preview coverage before paying. Fresh research, bespoke assessment and protected evidence are excluded.",
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    "request_workflow": "/varexis-index/request-workflow.json",
    "service_id": "single_request",
    "service_routes_url": "/varexis-index/service-routes.json",
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    "availability_endpoint": "/api/index/capabilities",
    "operational_status": "AUTOMATIC_SERVICE_CAPABILITIES_GATED",
    "checkout_url": "/index-access"
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  "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#github-attestation-predicate-trust",
  "machine_readable_record": "/varexis-index/records/github-attestation-predicate-trust.json"
}