{
  "ok": true,
  "schema": "lvl-recommendations-v2",
  "skill": {
    "id": "openbci-adaptive-calibration",
    "name": "OpenBCI Adaptive EEG Calibration",
    "category": "Neurotech",
    "price_usd": 5.99,
    "related_skills": [],
    "requires": [],
    "complements": []
  },
  "recommendations": [
    {
      "skill_id": "sovereignzero-neurotech-os-pack",
      "name": "SovereignZero Neurotech OS Pack",
      "price_usd": 29,
      "category": "Neurotech",
      "score": 5.7,
      "reasons": [
        "same_category",
        "tag_overlap"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=sovereignzero-neurotech-os-pack",
      "outline": "https://lvlltd.com/skills/sovereignzero-neurotech-os-pack/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "eeg-closed-loop-controller",
      "name": "EEG Closed-Loop Controller",
      "price_usd": 9.99,
      "category": "Neurotech",
      "score": 5.3,
      "reasons": [
        "same_category",
        "tag_overlap"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=eeg-closed-loop-controller",
      "outline": "https://lvlltd.com/skills/eeg-closed-loop-controller/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "brain-computer-interface-patterns",
      "name": "Brain Computer Interface Patterns",
      "price_usd": 9.99,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=brain-computer-interface-patterns",
      "outline": "https://lvlltd.com/skills/brain-computer-interface-patterns/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "neuro-signal-processing",
      "name": "Neuro Signal Processing",
      "price_usd": 8.49,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=neuro-signal-processing",
      "outline": "https://lvlltd.com/skills/neuro-signal-processing/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "cognitive-load-monitor",
      "name": "Cognitive Load Monitor",
      "price_usd": 6.99,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=cognitive-load-monitor",
      "outline": "https://lvlltd.com/skills/cognitive-load-monitor/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "neuro-feedback-loop-designer",
      "name": "Neuro Feedback Loop Designer",
      "price_usd": 7.99,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=neuro-feedback-loop-designer",
      "outline": "https://lvlltd.com/skills/neuro-feedback-loop-designer/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "ethical-neurotech-guardrails",
      "name": "Ethical Neurotech Guardrails",
      "price_usd": 8.99,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=ethical-neurotech-guardrails",
      "outline": "https://lvlltd.com/skills/ethical-neurotech-guardrails/outline.json",
      "requires": false,
      "complements": false
    },
    {
      "skill_id": "sovereignzero-bmass-node",
      "name": "SovereignZero BMASS Node Kit",
      "price_usd": 4.99,
      "category": "Neurotech",
      "score": 3,
      "reasons": [
        "same_category"
      ],
      "challenge": "https://lvlltd.com/api/pay?skill=sovereignzero-bmass-node",
      "outline": "https://lvlltd.com/skills/sovereignzero-bmass-node/outline.json",
      "requires": false,
      "complements": false
    }
  ],
  "bundles_including": [],
  "ecosystem": {
    "music_library": "https://music.lvlltd.com/",
    "tesla_trek": "https://tesla-trek.com/",
    "studio": "https://studio.lvlltd.com/",
    "bridges_page": "https://lvlltd.com/ecosystem/",
    "music_skills": [
      "studio-producer-expert",
      "studio-mix-expert",
      "studio-master-expert",
      "studio-tracking-expert",
      "studio-intake-expert"
    ],
    "trek_skills": [
      "tesla-trek-coordinator"
    ],
    "note": "Sister products are not merch. Skills above enhance music/trek workflows when present in catalog."
  },
  "start_here": {
    "canary": "agent-x402-first-buy",
    "price_usd": 0.05,
    "url": "https://lvlltd.com/first-unlock/",
    "challenge": "https://lvlltd.com/api/pay?skill=agent-x402-first-buy"
  },
  "sources": {
    "explicit_fields": "related_skills / requires / complements when present",
    "co_purchase": "same wallet confirmed unlocks (ledger)",
    "structural": "same_category + tag_overlap",
    "ecosystem_bridges": "music studio + Tesla Trek editorial adjacency (catalog-gated)"
  },
  "note": "Hand-curated bundles remain under /api/shop → bundles; this graph scales beyond editorial lists. Never invents co-purchase without ledger rows."
}