write-design-system-component

Development

Use when implementing a new Kuvio component for the Alkaa Design System after design spec and structure decisions are finalized

QUICK START

How to use this skill

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Source SKILL.md: https://github.com/igorescodro/alkaa/blob/HEAD/.claude/skills/write-design-system-component/SKILL.md

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Kuvio Component Implementation

Overview

Kuvio is the Alkaa Design System's component library. This skill guides implementation of theme-aware, multiplatform Compose Multiplatform components following strict naming, structure, and styling conventions.

Prerequisite: Design spec must be finalized (variants, layout, interactive states) before using this skill. If not, use superpowers:brainstorming first.

Steps

Extract Design Spec — Identify visual structure, variants, spacing, typography, interactive states → see references/IMPLEMENTATION_GUIDE.md
Study Existing Components — Read at least 2 reference implementations → see references/IMPLEMENTATION_GUIDE.md
Choose Output Directory — Map component category to folder → see references/IMPLEMENTATION_GUIDE.md
Implement Component — Follow naming, code style, and slot conventions → see references/IMPLEMENTATION_GUIDE.md
Externalize Strings — Use localization skill for all user-visible strings
Add Previews — Light + dark pair for every meaningful variant → see references/IMPLEMENTATION_GUIDE.md
Verify Code Quality — Run scripts/verify_quality.sh
Report — List files created, variants exposed, slots, dependencies, design tokens used → see references/IMPLEMENTATION_GUIDE.md

Quick Reference

Rule	Correct	Wrong
Naming	`KuvioTaskChip`	`TaskChip`, `TASK_CHIP`
Strings	`stringResource(Res.string.kuvio_component_label)`	`"Add task"`
Colors	`MaterialTheme.colorScheme.primary`	`Color(0xFF123456)`
Text	`KuvioBodyMediumText()`	`Text(fontSize=14.sp, ...)`
Size	~60 lines, max 3 nesting levels	200+ lines, deeply nested
Slots	`icon: (@Composable () -> Unit)?`	`iconColor: Color, iconSize: Dp, ...`
Constants	`private const val AddTaskPlaceholder`	`private const val ADD_TASK_PLACEHOLDER`

Red Flags — STOP and Review

Before Implementation:

No design spec or spec is incomplete → STOP. Use superpowers:brainstorming first.
Unsure which variants, slots, or states the component needs → STOP. Finalize design first.

During Implementation:

About to hardcode a color → Use MaterialTheme.colorScheme.*
Function approaching 80+ lines → Extract private sub-composables
Nesting deeper than 3 levels → Extract logical chunks
Raw Text() instead of Kuvio text primitive → Use KuvioBodyMediumText() etc.
Strings in code (except Preview constants) → Move to resources/strings.xml

After Writing Code:

Skipping quality check → Run scripts/verify_quality.sh
Preview doesn't match design spec → Fix before finishing

Common Mistakes

Mistake	Fix
Hardcoding colors	Breaks dark mode — use `MaterialTheme.colorScheme.*`
Raw `Text()` instead of Kuvio text	Inconsistent typography — use `KuvioBodyMediumText()` etc.
Strings in code	Not localizable — move to `resources/strings.xml`
Function > 60 lines	Hard to read — extract private sub-composables
Deep nesting (4+ levels)	Extract logical chunks to private composables
Configuration objects	Hard to extend — use composable `(@Composable () -> Unit)?` slots
Skipping previews	Can't verify visually — add light/dark pair for each variant
`Canvas` for shapes	Hard to theme — use `Box`, `clip`, `background` modifiers

Design System Context

libraries/designsystem/ — Kuvio components, theme, tokens
resources/ — Strings, colors, spacing
Reference: /assets/designsystem/alkaa-ds.html