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          "slug": "programming-languages-for-ml-systems",
          "source": "db"
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        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
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          "slug": "programming-languages-for-xr",
          "source": "db"
        },
        "dimension_id": 97,
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        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [
          {
            "display_name": "AR/VR Engineer",
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            "rationale": null,
            "role_archetype": null,
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          "source": "db"
        },
        "dimension_id": 290,
        "input_skill": "Python",
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        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
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            "role_archetype": "Engineering",
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        "skipped_reason": null
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        "dimension_id": 22,
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        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension saved",
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        "roles_from_db": [
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            "slug": "data-engineer",
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          "source": "db"
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        "dimension_id": 267,
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
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            "slug": "pega-developer",
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        "skill_dimension_saved": true,
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          "display_name": "Views and Content Querying",
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          "rationale": "Building listings, feeds, and filtered content displays using Drupal\u0027s query and presentation tools. This cluster is coherent because many Drupal features are delivered through reusable content queries rather than custom code.",
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          "source": "db"
        },
        "dimension_id": 347,
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [
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            "display_name": "Drupal Dev",
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            "slug": "drupal-dev",
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        "skill_dimension_saved": true,
        "skill_id": 3116,
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          "rationale": "Modeling and tuning relational persistence for backend features. PHP backend developers need this to shape schemas, indexes, transactions, and query-aware data structures that support application behavior.",
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          "source": "db"
        },
        "dimension_id": 216,
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [
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            "display_name": "Fullstack Developer",
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            "rationale": null,
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            "display_name": "PHP Backend Developer",
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        ],
        "skill_dimension_saved": true,
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          "source": "db"
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        "input_skill": "Indexes",
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [
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            "display_name": ".NET Backend Developer",
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            "source": "db"
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          {
            "display_name": "Kotlin Backend Developer",
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            "rationale": null,
            "role_archetype": "Engineering",
            "slug": "kotlin-server-backend-developer",
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            "display_name": "Node.js Backend Developer",
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            "rationale": null,
            "role_archetype": "Engineering",
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            "display_name": "Python Backend Developer",
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            "display_name": "Ruby Backend Developer",
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            "display_name": "Scala Backend Developer",
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            "rationale": null,
            "role_archetype": "Engineering",
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        "skill_dimension_saved": true,
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        "chosen_role_id": 2,
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          "rationale": "Working effectively with operational relational databases from Go backend services. This includes schema-aware querying, indexing awareness, transactions, and understanding how service code interacts with PostgreSQL or similar systems.",
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          "source": "db"
        },
        "dimension_id": 371,
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
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          {
            "display_name": "Go Backend Developer",
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          "display_name": "Dart Programming",
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          "rationale": "Core implementation language used to build Flutter app logic, UI composition, and client-side feature code. This is the primary coding surface for shared cross-platform app development.",
          "slug": "dart-programming",
          "source": "db"
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        "dimension_id": 311,
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        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [
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            "display_name": "Flutter Developer",
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            "rationale": null,
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        "skill_dimension_saved": true,
        "skill_id": 2913,
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        "skipped_reason": null
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          "display_name": "Concurrency and Async Workflows",
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          "rationale": "Programming techniques for handling concurrent requests, asynchronous I/O, and coordination of background execution in Python services. This cluster is coherent because backend developers must safely manage throughput and responsiveness.",
          "slug": "concurrency-and-async-workflows",
          "source": "db"
        },
        "dimension_id": 292,
        "input_skill": "Tasks",
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        "matched_chosen_role": false,
        "outcome_line": "Skipped \u2014 no persistable v3 meta for new skill",
        "role_dimension_saved": false,
        "roles_from_db": [
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            "display_name": ".NET Backend Developer",
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            "rationale": null,
            "role_archetype": "Engineering",
            "slug": "dotnet-backend-developer",
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          {
            "display_name": "Python Backend Developer",
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            "role_archetype": "Engineering",
            "slug": "python-backend-developer",
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        ],
        "skill_dimension_saved": false,
        "skill_id": null,
        "skill_tag": "new",
        "skipped_reason": "skill_not_in_db_v3_proposed"
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      {
        "chosen_role_id": 2,
        "dimension": {
          "difficulty_hint": "well_known",
          "display_name": "React Frontend Development",
          "id": 96,
          "rationale": "Building interactive web user interfaces with React.js, including component composition, state management, hooks, and rendering patterns. React.js belongs here because it is a core library for client-side UI development in modern web applications.",
          "slug": "d_init_01",
          "source": "db"
        },
        "dimension_id": 96,
        "input_skill": "Flask",
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        "matched_chosen_role": false,
        "outcome_line": "Existing dimension (library) \u00b7 Role\u2194dimension skipped (dimension not under chosen role)",
        "role_dimension_saved": false,
        "roles_from_db": [],
        "skill_dimension_saved": true,
        "skill_id": 1344,
        "skill_tag": "in_db",
        "skipped_reason": null
      },
      {
        "chosen_role_id": 2,
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