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.

当使用 Codable 实现 JSON 编码/解码、处理 API 响应、遇到解码错误、管理日期格式、将 Snake_case 映射到 CamelCase 或处理嵌套/不一致的 JSON 结构时使用 来源：dagba/ios-mcp。

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