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reliquary/plugins/bevy/README.md
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g4borg c661027d19 🤖 Flesh out bevy-0.19 and bevy-upgrade skills from research
Replace scaffold placeholders with full skill content:
- bevy-0.19: ECS cheat sheet, critical traps table, architecture guide, and 7 reference files
- bevy-upgrade: version migration workflow, transition references for 0.15→0.19, and 3 per-bump reference files
2026-07-07 17:52:10 +02:00

50 lines
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Markdown

# bevy
Skills for developing with the [Bevy](https://bevyengine.org/) game engine in Rust.
Bevy's rapid release cycle (0.16 through 0.19 in ~18 months) introduces fundamental API renames and semantic shifts between versions. LLMs confidently generate code against outdated patterns — `Parent` instead of `ChildOf`, `Event` instead of `Message`, `use_state` idioms that no longer exist. These skills exist to correct that.
## Skills
- **bevy-0.19** — Implementation helper for writing correct, idiomatic Bevy 0.19 code. Covers plugins, ECS, hierarchy, events/observers, input, camera, and production gotchas. Triggers on Bevy 0.19 Rust code. Contains a compact always-loaded cheat sheet plus a `references/` folder for deeper topic dives.
- **bevy-upgrade** — Version migration guide for upgrading between Bevy releases. Covers the breaking-change chain (0.16 through 0.19+) with rename tables, semantic shifts, and step-by-step migration patterns. Invoked by the `bevy-0.19` skill when an upgrade task is detected, or directly when the user asks to migrate.
## Research
The research that informed this plugin's design lives in [`docs/workpad/research/bevy-skill-research/`](../../docs/workpad/research/bevy-skill-research/00-index.md). Key reports:
| Report | Topic |
|--------|-------|
| [01-plugins](../../docs/workpad/research/bevy-skill-research/01-plugins.md) | Plugin trait lifecycle, dependencies, states, schedules |
| [02-ecs-core](../../docs/workpad/research/bevy-skill-research/02-ecs-core.md) | Components, resources, systems, queries, commands |
| [03-hierarchy](../../docs/workpad/research/bevy-skill-research/03-hierarchy.md) | ChildOf relationships, spawning/querying children |
| [04-events-observers](../../docs/workpad/research/bevy-skill-research/04-events-observers.md) | Message/Event split (0.18), observers, lifecycle triggers |
| [05-input](../../docs/workpad/research/bevy-skill-research/05-input.md) | Keyboard, mouse, gamepad, touch input patterns |
| [06-camera-gotchas](../../docs/workpad/research/bevy-skill-research/06-camera-gotchas.md) | Camera setup, rendering, coordinates |
| [07-lessons-from-production](../../docs/workpad/research/bevy-skill-research/07-lessons-from-production.md) | 15 gotchas from a production Bevy 0.18 multiplayer game |
| [08-landscape-and-design-sketch](../../docs/workpad/research/bevy-skill-research/08-landscape-and-design-sketch.md) | Ecosystem survey, architecture options |
## Architecture
This plugin follows **Approach A** from the design research: a compact always-loaded skill (~500 lines) for the critical patterns agents get wrong, with a `references/` folder for deeper topic material. Skills are versioned by Bevy minor version (like `dioxus-0.7`). The `bevy-upgrade` skill is a companion that handles version migration specifically.
## Install
```
/plugin marketplace add git@git.g4b.org:dirigence/reliquary.git
/plugin install bevy@reliquary
```
Or in `.claude/settings.json`:
```json
{
"extraKnownMarketplaces": {
"reliquary": {
"source": { "source": "git", "url": "git@git.g4b.org:dirigence/reliquary.git" }
}
},
"enabledPlugins": { "bevy@reliquary": true }
}
```