Prompt (rr-iter2-002): Edit the routing phase README to document the new corpus file layout.
Expected skill: sk-doc

Advisor output:
[
  {
    "skill": "sk-doc",
    "kind": "skill",
    "confidence": 0.9356,
    "uncertainty": 0.12,
    "passes_threshold": true,
    "reason": "Matched by native advisor_recommend",
    "source": "native",
    "score": 0.811964,
    "dominant_lane": "explicit_author",
    "status": "active",
    "_shadow": {
      "skillId": "sk-doc",
      "liveScore": 0.811964,
      "shadowScore": 0.71177,
      "delta": -0.100194,
      "dominantShadowLane": "explicit_author"
    }
  },
  {
    "skill": "system-spec-kit",
    "kind": "skill",
    "confidence": 0.82,
    "uncertainty": 0.22,
    "passes_threshold": true,
    "reason": "Matched by native advisor_recommend",
    "source": "native",
    "score": 0.549736,
    "dominant_lane": "explicit_author",
    "status": "active",
    "_shadow": {
      "skillId": "system-spec-kit",
      "liveScore": 0.549736,
      "shadowScore": 0.509016,
      "delta": -0.04072,
      "dominantShadowLane": "explicit_author"
    }
  },
  {
    "skill": "sk-code",
    "kind": "skill",
    "confidence": 0.82,
    "uncertainty": 0.18,
    "passes_threshold": true,
    "reason": "Matched by native advisor_recommend",
    "source": "native",
    "score": 0.399245,
    "dominant_lane": "explicit_author",
    "status": "active",
    "_shadow": {
      "skillId": "sk-code",
      "liveScore": 0.399245,
      "shadowScore": 0.354749,
      "delta": -0.044496,
      "dominantShadowLane": "explicit_author"
    }
  }
]
