{
  "schema_version": "2.0",
  "draft_kind": "llm_generalized_experience_proposals",
  "review_intent": "Transfer semantic construction methods, constraints, and dimensionless family priors without source geometry.",
  "proposals": [
    {
      "id": "motif.flanged_rotational_part.repeated_axial_hole_pattern_and_circular_equal_radius_pattern",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Organize repeated axial holes as one circular pattern referenced to a semantic pattern center.",
      "semantic_rationale": "Pattern-level representation keeps count, radius role, and radial placement coherent across dimensional variants."
    },
    {
      "id": "motif.flanged_rotational_part.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.flanged_rotational_part.rotational_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Represent a rotational body as an ordered semantic profile of coaxial sections.",
      "semantic_rationale": "A profile-level representation preserves shaft and hub topology when section proportions change."
    },
    {
      "id": "motif.flanged_rotational_part.rotational_body_and_flange_like_rotational_body",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "flange_like_rotational_body"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "flange_like_rotational_body"
        ]
      },
      "guidance": "Separate the flange-like region from the remaining rotational profile while retaining their shared axis.",
      "semantic_rationale": "Role separation permits flange and hub edits without losing rotational continuity."
    },
    {
      "id": "motif.flanged_rotational_part.shaft_like_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Model a shaft-like body through named axial sections and shoulders.",
      "semantic_rationale": "Named sections make length and diameter edits local while preserving the overall shaft topology."
    },
    {
      "id": "motif.flanged_rotational_part.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.flanged_rotational_part.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "motif.flanged_rotational_part.rotational_body_and_toroidal_blend_or_groove",
      "kind": "feature_motif",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ]
      },
      "guidance": "Attach toroidal blend or groove candidates to the surrounding rotational profile rather than treating them as free geometry.",
      "semantic_rationale": "Referencing the host profile preserves the local transition role when the host diameter changes."
    },
    {
      "id": "constraint.flanged_rotational_part.repeated_radius_group",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern"
        ],
        "required_relations": [
          "repeated_radius_group"
        ],
        "context_features": [
          "repeated_axial_hole_pattern"
        ]
      },
      "guidance": "Preserve a shared radius role across members of a repeated axial feature group.",
      "semantic_rationale": "The invariant applies across sizes because it constrains equality of roles rather than an absolute radius.",
      "check": "Confirm that the repeated radius group relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.common_pattern_radius",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [
          "common_pattern_radius"
        ],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Preserve a common radial placement role for members of a circular repeated-feature pattern.",
      "semantic_rationale": "A shared pattern radius keeps the array coherent while permitting overall scaling.",
      "check": "Confirm that the common pattern radius relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.coaxial_stack",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "coaxial_stack"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Preserve coaxiality across the named sections of a rotational stack.",
      "semantic_rationale": "Coaxial constraints maintain rotational function across dimensional variants.",
      "check": "Confirm that the coaxial stack relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.flanged_rotational_part.dominant_axis_alignment",
      "kind": "constraint",
      "scope": [
        "flanged_rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "dominant_axis_alignment"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Reference rotational sections and dependent features to one dominant semantic axis.",
      "semantic_rationale": "A dominant datum axis stabilizes both creation and later parameter edits.",
      "check": "Confirm that the dominant axis alignment relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.flanged_rotational_part.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.flanged_rotational_part.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "flanged_rotational_part"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "constraint.general_mechanical_part.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "general_mechanical_part"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.general_mechanical_part.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.general_mechanical_part.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.general_mechanical_part.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.general_mechanical_part.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.general_mechanical_part.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.general_mechanical_part.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "general_mechanical_part"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.hollow_or_stepped_shaft.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.hollow_or_stepped_shaft.rotational_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Represent a rotational body as an ordered semantic profile of coaxial sections.",
      "semantic_rationale": "A profile-level representation preserves shaft and hub topology when section proportions change."
    },
    {
      "id": "motif.hollow_or_stepped_shaft.shaft_like_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Model a shaft-like body through named axial sections and shoulders.",
      "semantic_rationale": "Named sections make length and diameter edits local while preserving the overall shaft topology."
    },
    {
      "id": "motif.hollow_or_stepped_shaft.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.hollow_or_stepped_shaft.rotational_body_and_toroidal_blend_or_groove",
      "kind": "feature_motif",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ]
      },
      "guidance": "Attach toroidal blend or groove candidates to the surrounding rotational profile rather than treating them as free geometry.",
      "semantic_rationale": "Referencing the host profile preserves the local transition role when the host diameter changes."
    },
    {
      "id": "constraint.hollow_or_stepped_shaft.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.hollow_or_stepped_shaft.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.hollow_or_stepped_shaft.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.hollow_or_stepped_shaft.coaxial_stack",
      "kind": "constraint",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "coaxial_stack"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Preserve coaxiality across the named sections of a rotational stack.",
      "semantic_rationale": "Coaxial constraints maintain rotational function across dimensional variants.",
      "check": "Confirm that the coaxial stack relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.hollow_or_stepped_shaft.dominant_axis_alignment",
      "kind": "constraint",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "dominant_axis_alignment"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Reference rotational sections and dependent features to one dominant semantic axis.",
      "semantic_rationale": "A dominant datum axis stabilizes both creation and later parameter edits.",
      "check": "Confirm that the dominant axis alignment relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.hollow_or_stepped_shaft.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "hollow_or_stepped_shaft"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.multi_axis_manifold.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.multi_axis_manifold.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.multi_axis_manifold.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "constraint.multi_axis_manifold.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.multi_axis_manifold.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.multi_axis_manifold.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "multi_axis_manifold"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.multi_axis_manifold.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.multi_axis_manifold.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.multi_axis_manifold.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.multi_axis_manifold.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.multi_axis_manifold.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.multi_axis_manifold.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "multi_axis_manifold"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.patterned_plate.repeated_axial_hole_pattern_and_circular_equal_radius_pattern",
      "kind": "feature_motif",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Organize repeated axial holes as one circular pattern referenced to a semantic pattern center.",
      "semantic_rationale": "Pattern-level representation keeps count, radius role, and radial placement coherent across dimensional variants."
    },
    {
      "id": "motif.patterned_plate.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.patterned_plate.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.patterned_plate.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "constraint.patterned_plate.repeated_radius_group",
      "kind": "constraint",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern"
        ],
        "required_relations": [
          "repeated_radius_group"
        ],
        "context_features": [
          "repeated_axial_hole_pattern"
        ]
      },
      "guidance": "Preserve a shared radius role across members of a repeated axial feature group.",
      "semantic_rationale": "The invariant applies across sizes because it constrains equality of roles rather than an absolute radius.",
      "check": "Confirm that the repeated radius group relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_plate.common_pattern_radius",
      "kind": "constraint",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [
          "common_pattern_radius"
        ],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Preserve a common radial placement role for members of a circular repeated-feature pattern.",
      "semantic_rationale": "A shared pattern radius keeps the array coherent while permitting overall scaling.",
      "check": "Confirm that the common pattern radius relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_plate.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_plate.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_plate.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "patterned_plate"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.patterned_plate.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_plate.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_plate"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.patterned_prismatic_part.repeated_axial_hole_pattern_and_circular_equal_radius_pattern",
      "kind": "feature_motif",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Organize repeated axial holes as one circular pattern referenced to a semantic pattern center.",
      "semantic_rationale": "Pattern-level representation keeps count, radius role, and radial placement coherent across dimensional variants."
    },
    {
      "id": "motif.patterned_prismatic_part.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.patterned_prismatic_part.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.patterned_prismatic_part.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "constraint.patterned_prismatic_part.repeated_radius_group",
      "kind": "constraint",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern"
        ],
        "required_relations": [
          "repeated_radius_group"
        ],
        "context_features": [
          "repeated_axial_hole_pattern"
        ]
      },
      "guidance": "Preserve a shared radius role across members of a repeated axial feature group.",
      "semantic_rationale": "The invariant applies across sizes because it constrains equality of roles rather than an absolute radius.",
      "check": "Confirm that the repeated radius group relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_prismatic_part.common_pattern_radius",
      "kind": "constraint",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ],
        "required_relations": [
          "common_pattern_radius"
        ],
        "context_features": [
          "repeated_axial_hole_pattern",
          "circular_equal_radius_pattern"
        ]
      },
      "guidance": "Preserve a common radial placement role for members of a circular repeated-feature pattern.",
      "semantic_rationale": "A shared pattern radius keeps the array coherent while permitting overall scaling.",
      "check": "Confirm that the common pattern radius relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_prismatic_part.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_prismatic_part.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.patterned_prismatic_part.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "patterned_prismatic_part"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.patterned_prismatic_part.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.patterned_prismatic_part.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "patterned_prismatic_part"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.plate_or_bracket.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "plate_or_bracket"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "distribution.plate_or_bracket.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.plate_or_bracket.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.plate_or_bracket.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.plate_or_bracket.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.plate_or_bracket.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.plate_or_bracket.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "plate_or_bracket"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.prismatic_block.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "prismatic_block"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "constraint.prismatic_block.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "prismatic_block"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.prismatic_block.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.pattern_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "pattern_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.prismatic_block.repeated_feature_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "prismatic_block"
      ],
      "observation_name": "repeated_feature_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.rotational_part.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.rotational_part.rotational_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Represent a rotational body as an ordered semantic profile of coaxial sections.",
      "semantic_rationale": "A profile-level representation preserves shaft and hub topology when section proportions change."
    },
    {
      "id": "motif.rotational_part.rotational_body_and_flange_like_rotational_body",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "flange_like_rotational_body"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "flange_like_rotational_body"
        ]
      },
      "guidance": "Separate the flange-like region from the remaining rotational profile while retaining their shared axis.",
      "semantic_rationale": "Role separation permits flange and hub edits without losing rotational continuity."
    },
    {
      "id": "motif.rotational_part.cylindrical_feature_network_and_multi_axis_passage",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "multi_axis_passage"
        ]
      },
      "guidance": "Partition cylindrical passages by axis system before constructing or modifying their intersections.",
      "semantic_rationale": "Axis-system partitioning reduces unintended coupling between independent passage families."
    },
    {
      "id": "motif.rotational_part.multi_level_planar_profile_and_planar_dominant_body",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ],
        "required_relations": [],
        "context_features": [
          "multi_level_planar_profile",
          "planar_dominant_body"
        ]
      },
      "guidance": "Treat major planar levels as named structural regions of the prismatic body.",
      "semantic_rationale": "Named planar regions preserve plate, pocket, and shoulder relationships during edits."
    },
    {
      "id": "motif.rotational_part.rotational_body_and_toroidal_blend_or_groove",
      "kind": "feature_motif",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "toroidal_blend_or_groove"
        ]
      },
      "guidance": "Attach toroidal blend or groove candidates to the surrounding rotational profile rather than treating them as free geometry.",
      "semantic_rationale": "Referencing the host profile preserves the local transition role when the host diameter changes."
    },
    {
      "id": "constraint.rotational_part.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.rotational_part.multiple_axis_system",
      "kind": "constraint",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "multi_axis_passage"
        ],
        "required_relations": [
          "multiple_axis_system"
        ],
        "context_features": [
          "multi_axis_passage"
        ]
      },
      "guidance": "Represent each passage direction as a distinct axis system and validate their intended intersections.",
      "semantic_rationale": "Explicit axis systems preserve multi-direction passage intent during local edits.",
      "check": "Confirm that the multiple axis system relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.rotational_part.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.rotational_part.coaxial_stack",
      "kind": "constraint",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "coaxial_stack"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Preserve coaxiality across the named sections of a rotational stack.",
      "semantic_rationale": "Coaxial constraints maintain rotational function across dimensional variants.",
      "check": "Confirm that the coaxial stack relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.rotational_part.dominant_axis_alignment",
      "kind": "constraint",
      "scope": [
        "rotational_part"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "dominant_axis_alignment"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Reference rotational sections and dependent features to one dominant semantic axis.",
      "semantic_rationale": "A dominant datum axis stabilizes both creation and later parameter edits.",
      "check": "Confirm that the dominant axis alignment relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.rotational_part.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.rotational_part.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.rotational_part.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.rotational_part.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.rotational_part.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.rotational_part.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "rotational_part"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "motif.shaft.cylindrical_feature_network_and_stepped_cylindrical_passage",
      "kind": "feature_motif",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ],
        "required_relations": [],
        "context_features": [
          "cylindrical_feature_network",
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Represent stepped cylindrical passages as one axis-related feature group rather than unrelated cylindrical cuts.",
      "semantic_rationale": "Grouping the passage stages preserves their shared functional axis while allowing individual stage proportions to change."
    },
    {
      "id": "motif.shaft.rotational_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "rotational_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Represent a rotational body as an ordered semantic profile of coaxial sections.",
      "semantic_rationale": "A profile-level representation preserves shaft and hub topology when section proportions change."
    },
    {
      "id": "motif.shaft.shaft_like_body_and_stepped_rotational_profile",
      "kind": "feature_motif",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ],
        "required_relations": [],
        "context_features": [
          "shaft_like_body",
          "stepped_rotational_profile"
        ]
      },
      "guidance": "Model a shaft-like body through named axial sections and shoulders.",
      "semantic_rationale": "Named sections make length and diameter edits local while preserving the overall shaft topology."
    },
    {
      "id": "constraint.shaft.shared_passage_axis",
      "kind": "constraint",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "stepped_cylindrical_passage"
        ],
        "required_relations": [
          "shared_passage_axis"
        ],
        "context_features": [
          "stepped_cylindrical_passage"
        ]
      },
      "guidance": "Preserve a common semantic axis through all stages of a stepped cylindrical passage.",
      "semantic_rationale": "The relation maintains passage continuity independently of stage diameters and depths.",
      "check": "Confirm that the shared passage axis relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.shaft.transition_axis_continuity",
      "kind": "constraint",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "conical_transition"
        ],
        "required_relations": [
          "transition_axis_continuity"
        ],
        "context_features": [
          "conical_transition"
        ]
      },
      "guidance": "Keep conical transitions axis-continuous with their participating analytic regions.",
      "semantic_rationale": "Axis continuity prevents eccentric transitions without fixing any source dimension.",
      "check": "Confirm that the transition axis continuity relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.shaft.coaxial_stack",
      "kind": "constraint",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "coaxial_stack"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Preserve coaxiality across the named sections of a rotational stack.",
      "semantic_rationale": "Coaxial constraints maintain rotational function across dimensional variants.",
      "check": "Confirm that the coaxial stack relationship remains valid after creation or modification."
    },
    {
      "id": "constraint.shaft.dominant_axis_alignment",
      "kind": "constraint",
      "scope": [
        "shaft"
      ],
      "evidence_query": {
        "required_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ],
        "required_relations": [
          "dominant_axis_alignment"
        ],
        "context_features": [
          "coaxial_cylindrical_stack",
          "rotational_body"
        ]
      },
      "guidance": "Reference rotational sections and dependent features to one dominant semantic axis.",
      "semantic_rationale": "A dominant datum axis stabilizes both creation and later parameter edits.",
      "check": "Confirm that the dominant axis alignment relationship remains valid after creation or modification."
    },
    {
      "id": "distribution.shaft.bbox_short_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "bbox_short_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.shaft.bbox_middle_to_long",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "bbox_middle_to_long",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.shaft.planar_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "planar_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.shaft.cylindrical_area_fraction",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "cylindrical_area_fraction",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.shaft.largest_coaxial_radius_to_transverse_span",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "largest_coaxial_radius_to_transverse_span",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    },
    {
      "id": "distribution.shaft.smallest_to_largest_coaxial_radius",
      "kind": "dimensionless_distribution",
      "scope": [
        "shaft"
      ],
      "observation_name": "smallest_to_largest_coaxial_radius",
      "evidence_query": {
        "required_features": [],
        "required_relations": [],
        "context_features": []
      },
      "guidance": "Use the family-conditioned dimensionless distribution only when the user has not supplied the corresponding relationship.",
      "semantic_rationale": "A ratio distribution transfers scale-independent proportion evidence without exposing source dimensions."
    }
  ]
}