菜单
Explain Cairo scalar and compound data types, literals, conversions, and string forms; use when a request asks about Cairo types (felt252, integers, bool, strings, tuples, arrays, unit), type annotations, or conversion errors.
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Document Cairo language quirks, gotchas, and idiomatic workarounds; use when encountering unexpected compilation errors or behaviors in Cairo that differ from Rust.
Guide implementing custom numeric types in Cairo with invariant enforcement, overflow safety, and standard trait implementations; use when implementing fixed-point, signed integers, or other numeric primitives.
Explain how to write and run Cairo tests, including `#[test]`, assert macros, `#[should_panic]`, `#[ignore]`, and `#[available_gas]`; use when a request involves writing or running unit tests in Cairo.
Explain Cairo Array usage, ArrayTrait methods, array! macro, Span, and array read/write constraints; use when a request involves creating, updating, reading, or passing arrays in Cairo.
Explain Cairo associated items (functions, types, constants, implementations) in traits and impls; use when a request involves associated types, constants, or clarifying trait item placement in Cairo.
Explain Cairo closures, syntax, capture rules, type inference, and Fn traits; use when a request involves anonymous functions or passing behavior as a parameter in Cairo.
| name | cairo-data-types |
| description | Explain Cairo scalar and compound data types, literals, conversions, and string forms; use when a request asks about Cairo types (felt252, integers, bool, strings, tuples, arrays, unit), type annotations, or conversion errors. |
Explain Cairo's core data types, literals, and conversions so answers stay type-correct and safe.
references/data-types.md before answering.felt252 when safety (overflow/underflow checks) matters.felt252, a specific integer type, bool, a string type, or a compound type.try_into/into patterns and mention potential failure where relevant.felt252 and u64 in Cairo?"