{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "fixture_set": "deltax-evaluate-developer-preview-synthetic-evidence-review-v1",
  "synthetic": true,
  "runtime_evidence": false,
  "live_endpoint_evidence": false,
  "notice": "Teaching fixtures only. IDs, digests, timestamps, headers, requests, and responses are synthetic and do not establish an implementation or service.",
  "cases": [
    {
      "case_id": "selected",
      "matrix_role": "valid_mixed_selected",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "success",
      "expected_http_status": 200,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-selected-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Choose the next bounded review step for a synthetic evidence packet.",
        "context": {
          "fixture_id": "synthetic-evidence-review-001",
          "artifact_kind": "design_note",
          "evidence_state": "operator_reported",
          "review_stage": "pre_release",
          "desired_effect": "none"
        },
        "candidates": [
          {
            "candidate_id": "analyze-completeness",
            "semantic_class": "analyze",
            "description": "Analyze the packet for missing bounded evidence labels.",
            "operator_reported_support": 0.91
          },
          {
            "candidate_id": "compare-claims",
            "semantic_class": "compare",
            "description": "Compare the packet claims with the stated evidence labels.",
            "operator_reported_support": 0.78
          },
          {
            "candidate_id": "draft-questions",
            "semantic_class": "draft",
            "description": "Draft bounded questions for unresolved evidence gaps.",
            "operator_reported_support": 0.64
          },
          {
            "candidate_id": "external-publish",
            "semantic_class": "external",
            "description": "Publish the packet outside the review boundary.",
            "operator_reported_support": 0.99
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "11111111-1111-4111-8111-111111111111",
        "X-RateLimit-Limit": "60",
        "X-RateLimit-Remaining": "59",
        "X-RateLimit-Reset": "1785542460"
      },
      "response": {
        "request_id": "11111111-1111-4111-8111-111111111111",
        "api_version": "2026-09-16.beta1",
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "outcome": "selected",
        "selected_candidate_id": "analyze-completeness",
        "reason_codes": [
          "candidate_selected_within_bounded_evaluation"
        ],
        "trace": {
          "trace_id": "21111111-1111-4111-8111-111111111111",
          "request_digest": "1111111111111111111111111111111111111111111111111111111111111111",
          "candidate_field_digest": "2222222222222222222222222222222222222222222222222222222222222222",
          "release_set_digest": "3333333333333333333333333333333333333333333333333333333333333333",
          "policy_digest": "4444444444444444444444444444444444444444444444444444444444444444",
          "lambda_decisions": [
            {"gate_id": "HES-G01", "disposition": "pass", "reason_code": "exact_governance_binding_passed"},
            {"gate_id": "HES-G02", "disposition": "pass", "reason_code": "profile_contract_passed"},
            {"gate_id": "HES-G03", "disposition": "pass", "reason_code": "tenant_binding_passed"},
            {"gate_id": "HES-G04", "disposition": "pass", "reason_code": "candidate_catalog_passed"},
            {"gate_id": "HES-G05", "disposition": "pass", "reason_code": "no_effect_boundary_passed"},
            {"gate_id": "HES-G06", "disposition": "pass", "reason_code": "data_authority_passed"},
            {"gate_id": "HES-G07", "disposition": "pass", "reason_code": "trace_commit_passed"},
            {"gate_id": "HES-G08", "disposition": "pass", "reason_code": "release_set_identity_passed"},
            {"gate_id": "HES-G09", "disposition": "pass", "reason_code": "resource_gate_passed"},
            {"gate_id": "HES-G10", "disposition": "pass", "reason_code": "security_stops_passed"},
            {"gate_id": "HES-G11", "disposition": "pass", "reason_code": "claim_boundary_passed"},
            {"gate_id": "HES-G12", "disposition": "pass", "reason_code": "response_authority_passed"}
          ],
          "evidence_labels": [
            "operator_reported",
            "contract_validated"
          ],
          "submitted_candidate_executed": false,
          "external_effect": false,
          "learning_applied": false,
          "operator_reported_context_verified": false,
          "committed_at": "2026-08-01T00:00:00Z"
        },
        "authority": {
          "selected_is_executed": false,
          "selected_is_correct_or_safe": false,
          "response_authorizes_downstream_action": false,
          "response_is_professional_advice": false,
          "trace_is_certification_or_legal_non_repudiation": false
        }
      }
    },
    {
      "case_id": "refusal",
      "matrix_role": "external_only_refusal",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "success",
      "expected_http_status": 200,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-refusal-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Review an effect-bearing proposal without performing it.",
        "context": {
          "fixture_id": "synthetic-evidence-review-002",
          "artifact_kind": "release_note",
          "evidence_state": "operator_reported",
          "desired_effect": "none"
        },
        "candidates": [
          {
            "candidate_id": "external-publish",
            "semantic_class": "external",
            "description": "Publish the proposal to an external destination.",
            "operator_reported_support": 0.93
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "12222222-2222-4222-8222-222222222222",
        "X-RateLimit-Limit": "60",
        "X-RateLimit-Remaining": "58",
        "X-RateLimit-Reset": "1785542460"
      },
      "response": {
        "request_id": "12222222-2222-4222-8222-222222222222",
        "api_version": "2026-09-16.beta1",
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "outcome": "governed_noop_refusal",
        "selected_candidate_id": null,
        "reason_codes": [
          "all_submitted_candidates_shadow_only"
        ],
        "trace": {
          "trace_id": "22222222-2222-4222-8222-222222222222",
          "request_digest": "5555555555555555555555555555555555555555555555555555555555555555",
          "candidate_field_digest": "6666666666666666666666666666666666666666666666666666666666666666",
          "release_set_digest": "3333333333333333333333333333333333333333333333333333333333333333",
          "policy_digest": "4444444444444444444444444444444444444444444444444444444444444444",
          "lambda_decisions": [
            {"gate_id": "HES-G01", "disposition": "pass", "reason_code": "exact_governance_binding_passed"},
            {"gate_id": "HES-G02", "disposition": "pass", "reason_code": "profile_contract_passed"},
            {"gate_id": "HES-G03", "disposition": "pass", "reason_code": "tenant_binding_passed"},
            {"gate_id": "HES-G04", "disposition": "fail", "reason_code": "all_candidates_shadow_only"},
            {"gate_id": "HES-G05", "disposition": "pass", "reason_code": "no_effect_boundary_passed"},
            {"gate_id": "HES-G06", "disposition": "pass", "reason_code": "data_authority_passed"},
            {"gate_id": "HES-G07", "disposition": "pass", "reason_code": "trace_commit_passed"},
            {"gate_id": "HES-G08", "disposition": "pass", "reason_code": "release_set_identity_passed"},
            {"gate_id": "HES-G09", "disposition": "pass", "reason_code": "resource_gate_passed"},
            {"gate_id": "HES-G10", "disposition": "pass", "reason_code": "security_stops_passed"},
            {"gate_id": "HES-G11", "disposition": "pass", "reason_code": "claim_boundary_passed"},
            {"gate_id": "HES-G12", "disposition": "pass", "reason_code": "response_authority_passed"}
          ],
          "evidence_labels": [
            "operator_reported",
            "contract_validated"
          ],
          "submitted_candidate_executed": false,
          "external_effect": false,
          "learning_applied": false,
          "operator_reported_context_verified": false,
          "committed_at": "2026-08-01T00:00:00Z"
        },
        "authority": {
          "selected_is_executed": false,
          "selected_is_correct_or_safe": false,
          "response_authorizes_downstream_action": false,
          "response_is_professional_advice": false,
          "trace_is_certification_or_legal_non_repudiation": false
        }
      }
    },
    {
      "case_id": "duplicate_candidate_id",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 422,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-invalid-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate fail-closed duplicate candidate validation.",
        "context": {
          "fixture_id": "synthetic-evidence-review-003"
        },
        "candidates": [
          {
            "candidate_id": "duplicate-id",
            "semantic_class": "analyze",
            "description": "First candidate using the duplicated ID.",
            "operator_reported_support": 0.7
          },
          {
            "candidate_id": "duplicate-id",
            "semantic_class": "validate",
            "description": "Second candidate using the duplicated ID.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "13333333-3333-4333-8333-333333333333"
      },
      "response": {
        "error": {
          "code": "unprocessable_content",
          "message": "Candidate identifiers must be unique within one request.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "13333333-3333-4333-8333-333333333333"
      }
    },
    {
      "case_id": "unknown_top_level_field",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 400,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-unknown-field-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Reject a request that adds an undeclared top-level field.",
        "context": {"fixture_id": "synthetic-evidence-review-005"},
        "candidates": [
          {
            "candidate_id": "analyze-packet",
            "semantic_class": "analyze",
            "description": "Analyze the bounded packet.",
            "operator_reported_support": 0.6
          }
        ],
        "requested_action": "publish"
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "15555555-5555-4555-8555-555555555555"
      },
      "response": {
        "error": {
          "code": "invalid_request",
          "message": "The request body contains an unknown top-level field.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "15555555-5555-4555-8555-555555555555"
      }
    },
    {
      "case_id": "wrong_profile",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 400,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-wrong-profile-0001"
      },
      "request": {
        "profile_id": "deltax-unreleased-domain-v99",
        "objective": "Reject an unrecognized profile identifier.",
        "context": {"fixture_id": "synthetic-evidence-review-006"},
        "candidates": [
          {
            "candidate_id": "validate-packet",
            "semantic_class": "validate",
            "description": "Validate the bounded packet.",
            "operator_reported_support": 0.7
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "16666666-6666-4666-8666-666666666666"
      },
      "response": {
        "error": {
          "code": "invalid_request",
          "message": "The profile_id does not match the frozen profile.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "16666666-6666-4666-8666-666666666666"
      }
    },
    {
      "case_id": "unknown_semantic_class",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 422,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-unknown-class-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Reject a candidate outside the closed semantic catalog.",
        "context": {"fixture_id": "synthetic-evidence-review-007"},
        "candidates": [
          {
            "candidate_id": "execute-packet",
            "semantic_class": "execute",
            "description": "Attempt to introduce an undeclared executable class.",
            "operator_reported_support": 0.9
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "17777777-7777-4777-8777-777777777777"
      },
      "response": {
        "error": {
          "code": "unprocessable_content",
          "message": "The candidate semantic_class is outside the closed catalog.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "17777777-7777-4777-8777-777777777777"
      }
    },
    {
      "case_id": "nested_context",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 422,
      "fail_closed": true,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-nested-context-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Reject nested context rather than flattening or inferring it.",
        "context": {
          "fixture_id": "synthetic-evidence-review-008",
          "nested": {"evidence_state": "operator_reported"}
        },
        "candidates": [
          {
            "candidate_id": "analyze-context",
            "semantic_class": "analyze",
            "description": "Analyze only admitted scalar context.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "18888888-8888-4888-8888-888888888888"
      },
      "response": {
        "error": {
          "code": "unprocessable_content",
          "message": "Context values must be bounded JSON scalars; nested values fail closed.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "18888888-8888-4888-8888-888888888888"
      }
    },
    {
      "case_id": "idempotency_replay_exact",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "success",
      "expected_http_status": 200,
      "expected_relation": "same_scoped_key_and_exact_request_returns_byte_identical_committed_response_without_duplicate_work",
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-replay-exact-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Return the exact prior committed response for an exact replay.",
        "context": {
          "fixture_id": "synthetic-evidence-review-009",
          "desired_effect": "none"
        },
        "candidates": [
          {
            "candidate_id": "validate-replay",
            "semantic_class": "validate",
            "description": "Validate the synthetic packet without external effect.",
            "operator_reported_support": 0.74
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "19999999-9999-4999-8999-999999999999",
        "X-RateLimit-Limit": "60",
        "X-RateLimit-Remaining": "57",
        "X-RateLimit-Reset": "1785542460"
      },
      "response": {
        "request_id": "19999999-9999-4999-8999-999999999999",
        "api_version": "2026-09-16.beta1",
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "outcome": "selected",
        "selected_candidate_id": "validate-replay",
        "reason_codes": ["candidate_selected_within_bounded_evaluation"],
        "trace": {
          "trace_id": "29999999-9999-4999-8999-999999999999",
          "request_digest": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
          "candidate_field_digest": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
          "release_set_digest": "3333333333333333333333333333333333333333333333333333333333333333",
          "policy_digest": "4444444444444444444444444444444444444444444444444444444444444444",
          "lambda_decisions": [
            {"gate_id": "HES-G01", "disposition": "pass", "reason_code": "exact_governance_binding_passed"},
            {"gate_id": "HES-G02", "disposition": "pass", "reason_code": "profile_contract_passed"},
            {"gate_id": "HES-G03", "disposition": "pass", "reason_code": "tenant_binding_passed"},
            {"gate_id": "HES-G04", "disposition": "pass", "reason_code": "candidate_catalog_passed"},
            {"gate_id": "HES-G05", "disposition": "pass", "reason_code": "no_effect_boundary_passed"},
            {"gate_id": "HES-G06", "disposition": "pass", "reason_code": "data_authority_passed"},
            {"gate_id": "HES-G07", "disposition": "pass", "reason_code": "trace_commit_passed"},
            {"gate_id": "HES-G08", "disposition": "pass", "reason_code": "release_set_identity_passed"},
            {"gate_id": "HES-G09", "disposition": "pass", "reason_code": "resource_gate_passed"},
            {"gate_id": "HES-G10", "disposition": "pass", "reason_code": "security_stops_passed"},
            {"gate_id": "HES-G11", "disposition": "pass", "reason_code": "claim_boundary_passed"},
            {"gate_id": "HES-G12", "disposition": "pass", "reason_code": "response_authority_passed"}
          ],
          "evidence_labels": ["operator_reported", "contract_validated"],
          "submitted_candidate_executed": false,
          "external_effect": false,
          "learning_applied": false,
          "operator_reported_context_verified": false,
          "committed_at": "2026-08-01T00:00:00Z"
        },
        "authority": {
          "selected_is_executed": false,
          "selected_is_correct_or_safe": false,
          "response_authorizes_downstream_action": false,
          "response_is_professional_advice": false,
          "trace_is_certification_or_legal_non_repudiation": false
        }
      },
      "replay_request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-replay-exact-0001"
      },
      "replay_request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Return the exact prior committed response for an exact replay.",
        "context": {
          "fixture_id": "synthetic-evidence-review-009",
          "desired_effect": "none"
        },
        "candidates": [
          {
            "candidate_id": "validate-replay",
            "semantic_class": "validate",
            "description": "Validate the synthetic packet without external effect.",
            "operator_reported_support": 0.74
          }
        ]
      },
      "replay_response_headers": {
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "19999999-9999-4999-8999-999999999999",
        "X-RateLimit-Limit": "60",
        "X-RateLimit-Remaining": "57",
        "X-RateLimit-Reset": "1785542460"
      },
      "replay_response": {
        "request_id": "19999999-9999-4999-8999-999999999999",
        "api_version": "2026-09-16.beta1",
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "outcome": "selected",
        "selected_candidate_id": "validate-replay",
        "reason_codes": ["candidate_selected_within_bounded_evaluation"],
        "trace": {
          "trace_id": "29999999-9999-4999-8999-999999999999",
          "request_digest": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
          "candidate_field_digest": "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",
          "release_set_digest": "3333333333333333333333333333333333333333333333333333333333333333",
          "policy_digest": "4444444444444444444444444444444444444444444444444444444444444444",
          "lambda_decisions": [
            {"gate_id": "HES-G01", "disposition": "pass", "reason_code": "exact_governance_binding_passed"},
            {"gate_id": "HES-G02", "disposition": "pass", "reason_code": "profile_contract_passed"},
            {"gate_id": "HES-G03", "disposition": "pass", "reason_code": "tenant_binding_passed"},
            {"gate_id": "HES-G04", "disposition": "pass", "reason_code": "candidate_catalog_passed"},
            {"gate_id": "HES-G05", "disposition": "pass", "reason_code": "no_effect_boundary_passed"},
            {"gate_id": "HES-G06", "disposition": "pass", "reason_code": "data_authority_passed"},
            {"gate_id": "HES-G07", "disposition": "pass", "reason_code": "trace_commit_passed"},
            {"gate_id": "HES-G08", "disposition": "pass", "reason_code": "release_set_identity_passed"},
            {"gate_id": "HES-G09", "disposition": "pass", "reason_code": "resource_gate_passed"},
            {"gate_id": "HES-G10", "disposition": "pass", "reason_code": "security_stops_passed"},
            {"gate_id": "HES-G11", "disposition": "pass", "reason_code": "claim_boundary_passed"},
            {"gate_id": "HES-G12", "disposition": "pass", "reason_code": "response_authority_passed"}
          ],
          "evidence_labels": ["operator_reported", "contract_validated"],
          "submitted_candidate_executed": false,
          "external_effect": false,
          "learning_applied": false,
          "operator_reported_context_verified": false,
          "committed_at": "2026-08-01T00:00:00Z"
        },
        "authority": {
          "selected_is_executed": false,
          "selected_is_correct_or_safe": false,
          "response_authorizes_downstream_action": false,
          "response_is_professional_advice": false,
          "trace_is_certification_or_legal_non_repudiation": false
        }
      }
    },
    {
      "case_id": "idempotency_conflict_changed_digest",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 409,
      "expected_relation": "same_scoped_key_with_changed_canonical_request_digest_fails_closed",
      "original_request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-conflict-key-0001"
      },
      "original_request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Analyze the original synthetic packet.",
        "context": {"fixture_id": "synthetic-evidence-review-010"},
        "candidates": [
          {
            "candidate_id": "analyze-original",
            "semantic_class": "analyze",
            "description": "Analyze the original bounded packet.",
            "operator_reported_support": 0.7
          }
        ]
      },
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-conflict-key-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Analyze a changed synthetic packet.",
        "context": {"fixture_id": "synthetic-evidence-review-010-changed"},
        "candidates": [
          {
            "candidate_id": "analyze-changed",
            "semantic_class": "analyze",
            "description": "Analyze the changed bounded packet.",
            "operator_reported_support": 0.71
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "1aaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa"
      },
      "response": {
        "error": {
          "code": "idempotency_conflict",
          "message": "The scoped idempotency key was already bound to a different request digest.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "1aaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa"
      }
    },
    {
      "case_id": "unauthenticated_missing_token",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 401,
      "auth_specimen": {
        "token_present": false,
        "required_scope_present": false,
        "principal_allowlisted": false
      },
      "request_headers": {
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-missing-token-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate fail-closed authentication.",
        "context": {"fixture_id": "synthetic-evidence-review-011"},
        "candidates": [
          {
            "candidate_id": "validate-auth",
            "semantic_class": "validate",
            "description": "Validate only after authentication succeeds.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "1bbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb"
      },
      "response": {
        "error": {
          "code": "unauthenticated",
          "message": "A valid OAuth bearer token is required.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "1bbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb"
      }
    },
    {
      "case_id": "forbidden_missing_scope",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 403,
      "auth_specimen": {
        "token_present": true,
        "required_scope_present": false,
        "principal_allowlisted": true
      },
      "request_headers": {
        "Authorization": "Bearer synthetic-token-without-required-scope",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-missing-scope-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate fail-closed scope enforcement.",
        "context": {"fixture_id": "synthetic-evidence-review-012"},
        "candidates": [
          {
            "candidate_id": "validate-scope",
            "semantic_class": "validate",
            "description": "Validate only with the required scope.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "1ccccccc-cccc-4ccc-8ccc-cccccccccccc"
      },
      "response": {
        "error": {
          "code": "forbidden",
          "message": "The token does not carry the required deltax:evaluate scope.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "1ccccccc-cccc-4ccc-8ccc-cccccccccccc"
      }
    },
    {
      "case_id": "forbidden_not_allowlisted",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 403,
      "auth_specimen": {
        "token_present": true,
        "required_scope_present": true,
        "principal_allowlisted": false
      },
      "request_headers": {
        "Authorization": "Bearer synthetic-token-for-unlisted-principal",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-not-allowlisted-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate fail-closed principal allowlist enforcement.",
        "context": {"fixture_id": "synthetic-evidence-review-013"},
        "candidates": [
          {
            "candidate_id": "validate-allowlist",
            "semantic_class": "validate",
            "description": "Validate only for a server-known allowlisted principal.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "1ddddddd-dddd-4ddd-8ddd-dddddddddddd"
      },
      "response": {
        "error": {
          "code": "forbidden",
          "message": "The authenticated principal is not on the active server-owned allowlist.",
          "retryable": false,
          "retry_after_seconds": null
        },
        "request_id": "1ddddddd-dddd-4ddd-8ddd-dddddddddddd"
      }
    },
    {
      "case_id": "service_unavailable_retry_after",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 503,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-service-closed-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate fail-closed service backpressure.",
        "context": {"fixture_id": "synthetic-evidence-review-014"},
        "candidates": [
          {
            "candidate_id": "validate-capacity",
            "semantic_class": "validate",
            "description": "Validate only when bounded service capacity is admitted.",
            "operator_reported_support": 0.8
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "1eeeeeee-eeee-4eee-8eee-eeeeeeeeeeee",
        "Retry-After": "15"
      },
      "response": {
        "error": {
          "code": "service_unavailable",
          "message": "Bounded service capacity is temporarily closed.",
          "retryable": true,
          "retry_after_seconds": 15
        },
        "request_id": "1eeeeeee-eeee-4eee-8eee-eeeeeeeeeeee"
      }
    },
    {
      "case_id": "rate_limited_retry_after",
      "evidence_label": "synthetic_contract_specimen",
      "observed_runtime_result": false,
      "live_tested": false,
      "grants_authority": false,
      "kind": "error",
      "expected_http_status": 429,
      "request_headers": {
        "Authorization": "Bearer synthetic-not-a-credential",
        "Content-Type": "application/json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "Idempotency-Key": "fixture-rate-limit-0001"
      },
      "request": {
        "profile_id": "deltax-hosted-bounded-review-evaluation-v1",
        "objective": "Demonstrate the bounded retry envelope.",
        "context": {
          "fixture_id": "synthetic-evidence-review-004"
        },
        "candidates": [
          {
            "candidate_id": "validate-packet",
            "semantic_class": "validate",
            "description": "Validate the packet structure without external effect.",
            "operator_reported_support": 0.75
          }
        ]
      },
      "response_headers": {
        "Content-Type": "application/problem+json",
        "X-DeltaX-API-Version": "2026-09-16.beta1",
        "X-DeltaX-Request-ID": "14444444-4444-4444-8444-444444444444",
        "Retry-After": "10",
        "X-RateLimit-Limit": "60",
        "X-RateLimit-Remaining": "0",
        "X-RateLimit-Reset": "1785542460"
      },
      "response": {
        "error": {
          "code": "rate_limited",
          "message": "The bounded request quota is currently closed.",
          "retryable": true,
          "retry_after_seconds": 10
        },
        "request_id": "14444444-4444-4444-8444-444444444444"
      }
    }
  ]
}