{
  "schema": "varexis-public-evidence-record/0.3",
  "generated_at_utc": "2026-10-25T20:55:19.974986+00:00",
  "record_id": "VXI-EXT-PROCUREMENT-REDIS-STREAM-ACK-PENDING-NOT-OUTCOME-01-v1",
  "record_kind": "external_reference",
  "title": "Redis stream acknowledgement evidence",
  "system": "Redis official xack documentation",
  "evidence_family": "vendor_evidence_review",
  "index_status": "PUBLIC_SAFE_SOURCE_REVIEW",
  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does Redis XACK prove completed business processing or erasure of the message payload?",
  "near_questions": [
    "Does XACK independently verify a consumer's business action?",
    "Which Redis structure loses an entry after acknowledgement?",
    "Does XACK count an already acknowledged message again?",
    "Does an empty PEL prove deletion of the stream payload?"
  ],
  "supported_claims": [
    {
      "claim": "Redis XACK removes entries from a consumer group's Pending Entries List and returns the number successfully acknowledged. Already absent IDs are not counted. Consumers should acknowledge after processing, but the command does not independently inspect that business outcome. Clearing the PEL entry is not itself evidence that the stream payload or every other retained copy was erased.",
      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "XACK clears the group PEL entry and counts acknowledgements; it does not inspect external processing or certify erasure of stream content.",
    "Buyer implementation, live runtime enforcement, settled payment, physical outcome, certification or permission to act are not established.",
    "No expanded capabilities or licences for existing INDEX executables."
  ],
  "public_summary": "Redis XACK removes entries from a consumer group's Pending Entries List and returns the number successfully acknowledged. Already absent IDs are not counted. Consumers should acknowledge after processing, but the command does not independently inspect that business outcome. Clearing the PEL entry is not itself evidence that the stream payload or every other retained copy was erased.",
  "related_record_ids": [],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "Redis official xack documentation",
    "source_url": "https://redis.io/docs/latest/commands/xack/",
    "checked_on": "2026-10-25",
    "candidate_record_id": "VXI-EXT-PROCUREMENT-REDIS-STREAM-ACK-PENDING-NOT-OUTCOME-01-v1",
    "candidate_record_sha256": "fdc734e0c3730b963f9d50b412502f363d1fdd46c94b479e048b1e35cfac2525",
    "method": "Primary documentation reviewed for the published bounded statement.",
    "deployment_tested_by_varexis": false,
    "revalidation": "The delivered snapshot preserves the review date shown. Recheck current primary documentation and deployment context before relying on present applicability; payment does not trigger fresh research."
  },
  "answer_policy": {
    "classification": "DOCUMENTED_WITH_DEPLOYMENT_BOUNDARY",
    "bounded_answer": "Redis XACK removes entries from a consumer group's Pending Entries List and returns the number successfully acknowledged. Already absent IDs are not counted. Consumers should acknowledge after processing, but the command does not independently inspect that business outcome. Clearing the PEL entry is not itself evidence that the stream payload or every other retained copy was erased.",
    "required_buyer_context": "Stream, group and message IDs; XACK result and PEL state; Independent processing and retention evidence. Buyer deployment not inspected.",
    "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.",
  "decision_profile": {
    "schema": "varexis-vendor-evidence-review/1",
    "review_status": "documentation_review_only",
    "checked_on": "2026-10-25",
    "claim_to_check": "Does Redis XACK prove completed business processing or erasure of the message payload?",
    "documented_statement": {
      "status": "documented",
      "statement": "Redis XACK removes entries from a consumer group's Pending Entries List and returns the number successfully acknowledged. Already absent IDs are not counted. Consumers should acknowledge after processing, but the command does not independently inspect that business outcome. Clearing the PEL entry is not itself evidence that the stream payload or every other retained copy was erased.",
      "source_ids": [
        "redis-xack"
      ]
    },
    "review_inference": {
      "status": "review_inference",
      "statement": "Distinguish stream consumer acknowledgement from independently observed business processing and payload retention. This is a documentation-review judgment, not an observed deployment outcome.",
      "source_ids": [
        "redis-xack"
      ]
    },
    "buyer_evidence_required": [
      "Stream, group and message IDs",
      "XACK result and PEL state",
      "Independent processing and retention evidence"
    ],
    "review_condition": {
      "status": "varexis_review_policy",
      "statement": "Refuse buyer-specific assurance from documentation alone. XACK clears the group PEL entry and counts acknowledgements; it does not inspect external processing or certify erasure of stream content."
    },
    "unknowns": "The buyer implementation, effective configuration, complete evidence inventory and actual business outcome were not inspected.",
    "unknown_finding": {
      "status": "unknown",
      "statement": "The buyer implementation, effective configuration, complete evidence inventory and actual business outcome were not inspected."
    },
    "evidence_sources": [
      {
        "source_id": "redis-xack",
        "url": "https://redis.io/docs/latest/commands/xack/",
        "final_url": "https://redis.io/docs/latest/commands/xack/",
        "status": 200,
        "captured_at_utc": "2026-10-25T20:26:13.433Z",
        "sha256": "18736cb3e98732157bfdcecfc70e85b8d2bbdea84a765c6aba34baa0a8bd5ffc",
        "bytes": 247330,
        "title": "Redis official xack documentation",
        "hash_basis": "SHA-256 of unmodified HTTP response body bytes",
        "rights_review": "Original factual paraphrase and citation only. Redis documentation and software have distinct applicable licences; no source page or software code is redistributed or relicensed.",
        "checked_on": "2026-10-25",
        "capture_status": 200,
        "claim_review_completed": true,
        "reviewed_sections": [
          "Command semantics",
          "Return information"
        ],
        "version_context": "Rolling Redis official documentation captured 2026-10-25. Command introduction and version-specific exceptions are stated in each bounded answer; deployed product/version/configuration unverified."
      }
    ],
    "observed_deployment": false,
    "commercial_reliance_boundary": "Documentation review only; the buyer must establish applicability and actual outcomes. INDEX does not inspect or control the deployment.",
    "paid_value": {
      "decision_context": "Distinguish stream consumer acknowledgement from independently observed business processing and payload retention.",
      "free": "Complete review, practical questions, sources and limitations; may be saved locally.",
      "single_request": "Existing server-saved version-bound route snapshot for later authenticated retrieval.",
      "evidence_receipt": "The same snapshot plus the existing unsigned delivery receipt.",
      "excluded": [
        "Fresh vendor research",
        "Continuous monitoring or change alerts",
        "Testing the buyer configuration",
        "Private evidence or vendor certification"
      ],
      "integrity": "Hashes identify content versions; they do not prove truth or provide a signature."
    },
    "revalidation": {
      "trigger": "A saved purchase does not recheck the source or buyer configuration.",
      "specific_watch": "Recheck Command semantics; Return information in Redis official xack documentation when the source, applicable version, configuration or intended reliance changes. A detected change creates a review candidate, not automatic approval."
    },
    "buyer_relevance": "Distinguish stream consumer acknowledgement from independently observed business processing and payload retention.",
    "refusal_conditions": [
      "Refuse buyer-specific assurance from documentation alone. XACK clears the group PEL entry and counts acknowledgements; it does not inspect external processing or certify erasure of stream content."
    ]
  },
  "niche": {
    "niche_id": "agent-authority-action-evidence",
    "label": "Agent Authority & Action Evidence",
    "classification_id": "audit",
    "classification_label": "Audit, Provenance & Evidence Accountability",
    "topic_id": "audit",
    "buyer_intent": "Distinguish stream consumer acknowledgement from independently observed business processing and payload retention.",
    "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.",
  "service_route": {
    "request_guide": "/varexis-index/request.html",
    "request_workflow": "/varexis-index/request-workflow.json",
    "service_id": "single_request",
    "service_routes_url": "/varexis-index/service-routes.json",
    "payment_required": true,
    "availability_endpoint": "/api/index/capabilities",
    "operational_status": "AUTOMATIC_SERVICE_CAPABILITIES_GATED",
    "checkout_url": "/index-access"
  },
  "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#redis-stream-ack-pending-not-outcome",
  "machine_readable_record": "/varexis-index/records/redis-stream-ack-pending-not-outcome.json"
}