{ "schema": "varexis-public-evidence-record/0.3", "generated_at_utc": "2026-10-24T21:56:24.175Z", "record_id": "VXI-EXT-PROCUREMENT-OPENFGA-CHANGE-LOG-CONTEXT-OMISSION-01-v1", "record_kind": "external_reference", "title": "OpenFGA change log and decision reconstruction", "system": "OpenFGA", "evidence_family": "vendor_evidence_review", "index_status": "PUBLIC_SAFE_SOURCE_REVIEW", "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY", "canonical_question": "Can OpenFGA Read Changes alone reconstruct decisions that used contextual tuples?", "near_questions": [ "Are ephemeral FGA permissions present in Read Changes?", "Can an OpenFGA tuple-change export explain every authorization?", "What is missing from a permission index built only from FGA writes?", "How should contextual tuples be accounted for in an FGA audit?" ], "supported_claims": [ { "claim": "OpenFGA contextual tuples exist only for a request and are not stored. Read Changes reports stored tuple writes and deletes, and the token-claims guide warns that permission-aware indexes built from it may not account for contextual tuples. A complete reconstruction needs the request-local inputs as well as the stored changes; the change stream is not an execution trace.", "reliance": "DOCUMENTED_CAPABILITY_ONLY" } ], "not_demonstrated_claims": [ "Request logs, omitted context and actual tool execution are unknown.", "Authentication or a policy result does not establish business approval, safe tool behaviour or completed execution.", "Buyer deployment testing, live runtime enforcement, certification or permission to act", "Expanded capabilities or licences for existing INDEX executables" ], "public_summary": "OpenFGA contextual tuples exist only for a request and are not stored. Read Changes reports stored tuple writes and deletes, and the token-claims guide warns that permission-aware indexes built from it may not account for contextual tuples. A complete reconstruction needs the request-local inputs as well as the stored changes; the change stream is not an execution trace.", "related_record_ids": [], "source_review": { "source_type": "official_external_documentation", "source_title": "Contextual Tuples", "source_url": "https://raw.githubusercontent.com/openfga/openfga.dev/fb5359796e1e1027985675cfdd2413e6dcbfdf5d/docs/content/interacting/contextual-tuples.mdx", "checked_on": "2026-10-24", "candidate_record_id": "VXI-EXT-PROCUREMENT-OPENFGA-CHANGE-LOG-CONTEXT-OMISSION-01-v1", "candidate_record_sha256": "e8ac403d5f02a7dcc1709f0ce798b94d3a14a0374fa536f886094b7ef6c3fb2b", "method": "Primary documentation reviewed for the published bounded statement.", "deployment_tested_by_varexis": false, "revalidation": "The delivered snapshot preserves the review date shown. 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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": "2026-10-24", "claim_to_check": "Can OpenFGA Read Changes alone reconstruct decisions that used contextual tuples?", "documented_statement": { "status": "documented", "statement": "OpenFGA contextual tuples exist only for a request and are not stored. Read Changes reports stored tuple writes and deletes, and the token-claims guide warns that permission-aware indexes built from it may not account for contextual tuples. A complete reconstruction needs the request-local inputs as well as the stored changes; the change stream is not an execution trace.", "source_ids": [ "fga-context", "fga-changes", "fga-token-claims" ] }, "review_inference": { "status": "review_inference", "statement": "Recognize missing request-local authority in an exported relationship history. 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Get changes for a specific object type" ], "version_context": "Pinned openfga/openfga.dev revision fb5359796e1e1027985675cfdd2413e6dcbfdf5d captured 2026-10-24. Documentation review, not evidence that a buyer implementation conforms." }, { "source_id": "fga-token-claims", "url": "https://raw.githubusercontent.com/openfga/openfga.dev/fb5359796e1e1027985675cfdd2413e6dcbfdf5d/docs/content/modeling/token-claims-contextual-tuples.mdx", "final_url": "https://raw.githubusercontent.com/openfga/openfga.dev/fb5359796e1e1027985675cfdd2413e6dcbfdf5d/docs/content/modeling/token-claims-contextual-tuples.mdx", "status": 200, "captured_at_utc": "2026-10-24T21:45:03.097Z", "sha256": "5853ed9616a25b73007bbbc80884fed632a0a412cec0e1387cc02ad9e38c76da", "bytes": 7606, "title": "Use Token Claims As Contextual Tuples", "hash_basis": "Decoded HTTP response body bytes", "rights_review": "Original factual paraphrase and source metadata only; Apache-2.0 repository captures retained privately and not redistributed.", "checked_on": "2026-10-24", "capture_status": 200, "claim_review_completed": true, "reviewed_sections": [ "User Directories, Identity Tokens, And Relationships", "Important Considerations", "How Contextual Tuples Work", "02. 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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#openfga-change-log-context-omission", "machine_readable_record": "/varexis-index/records/openfga-change-log-context-omission.json" }