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Port a feature from an upstream library into Kotlin Multiplatform code in the Krayon repo. Use when the user asks to implement, add, or port a feature from an external library (D3, Vega, Apache Commons Math, etc.) into a Krayon module.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
Research an upstream library's source code and documentation to understand its API surface, algorithms, and behavior before porting features to Krayon. Use when the user asks to port, implement, or add missing features from an external library (D3, Vega, Apache Commons Math, etc.), or when you need to understand how an upstream feature works before writing code.
Write Kotlin Multiplatform tests for Krayon library code. Use when the user asks to add tests, verify a ported implementation, or when implementing new Krayon features that need test coverage.
SOC 職業分類に基づく
| name | implement-upstream-port |
| description | Port a feature from an upstream library into Kotlin Multiplatform code in the Krayon repo. Use when the user asks to implement, add, or port a feature from an external library (D3, Vega, Apache Commons Math, etc.) into a Krayon module. |
Translate an upstream library's implementation into idiomatic Kotlin for Krayon.
If you don't already have a clear understanding of the upstream feature's API and algorithm, use the research-upstream-api skill first.
Float throughout. Convert upstream numeric types accordingly.PathBuilder<*>. Key methods: moveTo, lineTo, cubicTo,
quadraticTo, close.com.juul.krayon.shape.curve.Curve with startArea, endArea,
startLine, endLine, point.cardinal.tension(t)) becomes
constructor parameters with matching default values.var properties, reset in the appropriate
lifecycle method (e.g. startLine).| JS / D3 | Krayon (Kotlin) |
|---|---|
export default function Foo | public class Foo : <Interface> |
| Closure-captured mutable state | Private mutable properties on the class |
NaN sentinel for "not set" | Float.NaN — use a truthy() helper |
context.bezierCurveTo(a,b,c,d,e,f) | context.cubicTo(a,b,c,d,e,f) |
The existing Linear.kt has a private Float.truthy() extension for JS truthiness semantics. Reuse this when porting
code that checks NaN/0 as boolean.
./gradlew lintKotlin and fix any formatting issues../gradlew apiDump to regenerate API signature files.NOTICE file to credit the upstream library (see existing entries for the format).