---
name: bevy-0.19
description: "TODO: Use the skill-creator skill to write this. See scaffolding goals below."
---

# Bevy 0.19 — Implementation Helper

> **This skill is a scaffold.** Use `/skill-creator` to create the full skill content from the research material.

## Scaffolding Goals

1. **Use the `skill-creator:skill-creator` skill** to create the full SKILL.md content
2. Feed it the research reports from [`docs/workpad/research/bevy-skill-research/`](../../../../docs/workpad/research/bevy-skill-research/00-index.md)
3. Follow **Approach A** from the [design sketch](../../../../docs/workpad/research/bevy-skill-research/08-landscape-and-design-sketch.md): compact always-loaded cheat sheet (~500 lines) plus `references/` folder for deep dives
4. The skill should trigger on Bevy 0.19 Rust code (`bevy = "0.19"` in Cargo.toml, `use bevy::prelude::*`, `App::new()`, `#[derive(Component)]`, etc.)
5. Core content priorities (ranked by LLM error frequency):
   - Event/Message rename and split (0.18)
   - ChildOf replacing Parent (0.16+)
   - Fallible systems with `-> Result` (0.18)
   - Coordinate system gotchas
   - Transform propagation timing
   - Resources-as-Components (0.19)
6. Populate `references/` with per-topic deep-dive files derived from research reports 01-07
7. The skill should know about `bevy-upgrade` and invoke it when upgrade/migration work is detected

## Reference Material

The research that feeds this skill lives in the workpad:

- [00-index.md](../../../../docs/workpad/research/bevy-skill-research/00-index.md) — Research overview and design rationale
- [01-plugins.md](../../../../docs/workpad/research/bevy-skill-research/01-plugins.md) — Plugin lifecycle
- [02-ecs-core.md](../../../../docs/workpad/research/bevy-skill-research/02-ecs-core.md) — ECS fundamentals
- [03-hierarchy.md](../../../../docs/workpad/research/bevy-skill-research/03-hierarchy.md) — Hierarchy and ChildOf
- [04-events-observers.md](../../../../docs/workpad/research/bevy-skill-research/04-events-observers.md) — Events, messages, observers
- [05-input.md](../../../../docs/workpad/research/bevy-skill-research/05-input.md) — Input handling
- [06-camera-gotchas.md](../../../../docs/workpad/research/bevy-skill-research/06-camera-gotchas.md) — Camera and rendering
- [07-lessons-from-production.md](../../../../docs/workpad/research/bevy-skill-research/07-lessons-from-production.md) — Production gotchas
- [08-landscape-and-design-sketch.md](../../../../docs/workpad/research/bevy-skill-research/08-landscape-and-design-sketch.md) — Architecture options