swift-codable-json

SKILL.md

Codable provides type-safe JSON parsing but strict typing means any mismatch crashes decoding. One date strategy per decoder, CodingKeys for every naming mismatch, custom decoders for nested structures.

Core principle: Design for API reality (not ideal JSON), fail gracefully with error handling, use optionals for unreliable data.

Rule: Every property must appear in CodingKeys, even if name matches.

當使用 Codable 實現 JSON 編碼/解碼、處理 API 響應、遇到解碼錯誤、管理日期格式、將 Snake_case 映射到 CamelCase 或處理嵌套/不一致的 JSON 結構時使用 來源：dagba/ios-mcp。

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