{
  "context": "This criteria evaluates how well the engineer uses @stablelib/sha256's algorithm constants (DIGEST_LENGTH and BLOCK_SIZE) to implement buffer validation and size calculation functions. The focus is on correct usage of these exported constants rather than hardcoding values.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Import DIGEST_LENGTH",
      "description": "Imports the DIGEST_LENGTH constant from @stablelib/sha256",
      "max_score": 20
    },
    {
      "name": "Import BLOCK_SIZE",
      "description": "Imports the BLOCK_SIZE constant from @stablelib/sha256",
      "max_score": 20
    },
    {
      "name": "Use DIGEST_LENGTH for validation",
      "description": "Uses DIGEST_LENGTH constant (not hardcoded 32) in isValidDigestSize function to check buffer length",
      "max_score": 15
    },
    {
      "name": "Use DIGEST_LENGTH for allocation",
      "description": "Uses DIGEST_LENGTH constant (not hardcoded 32) in allocateDigestBuffer function to create correctly-sized buffer",
      "max_score": 15
    },
    {
      "name": "Use BLOCK_SIZE for alignment",
      "description": "Uses BLOCK_SIZE constant (not hardcoded 64) in isBlockAligned function to check alignment",
      "max_score": 15
    },
    {
      "name": "Use BLOCK_SIZE for calculations",
      "description": "Uses BLOCK_SIZE constant (not hardcoded 64) in calculateCompleteBlocks function to compute block count",
      "max_score": 15
    }
  ]
}