Agent skill

Bevy UI

Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position.

MITAuto-check passedFrontend & Design

Install Bevy UI

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/bevy-ui .claude/skills/bevy-ui && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .claude/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/bevy-ui .agents/skills/bevy-ui && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .agents/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/bevy-ui .cursor/skills/bevy-ui && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .cursor/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/nolantait/bevy-starter.git --path .agents/skills/bevy-ui

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/bevy-ui .gemini/skills/bevy-ui && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .gemini/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/bevy-ui .github/skills/bevy-ui && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .github/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add nolantait/bevy-starter --skill bevy-ui -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install nolantait/bevy-starter bevy-ui --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/nolantait/bevy-starter.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/bevy-ui .opencode/skills/bevy-ui && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "bevy-ui" agent skill from https://github.com/nolantait/bevy-starter/tree/master/.agents/skills/bevy-ui into .opencode/skills/bevy-ui/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "bevy-ui", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: bevy-ui
GitHub stars: 132
Token cost: ~1k tokens
SKILL.md length: 195 words
Files: 1
Skills in repo: 24
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position.

Tasks that involve CSS and styling
SKILL.md covers Core concept, Node layout, Val types and Colors, plus 8 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Bevy UI is an agent skill from nolantait/bevy-starter. Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering CSS and styling. The repository describes itself as: A minimalist starter for bevy and rust. The licence is MIT.

When your agent uses it

Tasks that involve CSS and styling

Example prompts

“/bevy-ui”

What it can do on your machine

Read from SKILL.md and the folder at commit dd6f56b. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are rust).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
- github.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Bevy UI loads about 1k tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 195 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~38
When it runs · the whole SKILL.md, loaded when a task matches: ~1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nolantait/bevy-starter at commit dd6f56b, republished under its MIT licence (© nolantait). 195 words, ~1,022 tokens.

Download SKILL.mdSave it as .claude/skills/bevy-ui/SKILL.md (or your agent's skills folder).

name: bevy-ui
description: Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position.
metadata.crate: bevy_ui
metadata.bevy: 0.19

Core concept

UI is built with entities + components. Node controls layout via Flexbox or CSS Grid (powered by taffy).

UI is rendered independently of camera viewport (stays put when camera moves). Use UiTargetCamera to follow a camera.

Node layout

rust

commands.spawn((
  Node {
    width: Val::Percent(100.),
    height: Val::Percent(100.),
    justify_content: JustifyContent::Center,
    align_items: AlignItems::Center,
    ..default()
  },
  BackgroundColor(Color::srgb(0.65, 0.65, 0.65)),
));

All children set their UiTransform relative to their parent, so a child ends up laid out inside its parent. Never modify UiTransform/UiGlobalTransform directly; position nodes through the Node layout and style fields. Node fields include direction (InlineDirection), border_radius (BorderRadius), and scrollbar_width in addition to the usual flex/grid properties.

Val types

Type	Description
`Val::Auto`	Automatic
`Val::Px(f32)`	Pixel value
`Val::Percent(f32)`	Percentage of parent
`Val::Vw(f32)` / `Val::Vh(f32)`	Viewport width/height %
`Val::VMin(f32)` / `Val::VMax(f32)`	Viewport min/max %

Helper functions: px(10.), percent(50.), vw(20.), etc.

Colors

rust

// From CSS palette
use bevy::color::palettes::css::{BLACK, BLUE, WHITE};

// SRGB
let color = Color::srgb(0.0, 0.0, 0.0);
let color: Hsla = Srgba::rgb(1.0, 0.0, 1.0).into();
// Alpha: .set_alpha(), .with_alpha()

Text in UI

rust

commands.spawn((
  Node { position_type: PositionType::Absolute, bottom: px(5.), right: px(5.), ..default() },
  Text::new("Hello"),
  TextColor(Color::BLACK),
  TextLayout::new_with_justify(Justify::Center),
));

Buttons and interaction

Using picking observers:

rust

fn on_hover(event: On<Pointer<Over>>, mut commands: Commands) {
  commands.entity(event.entity).insert(BackgroundColor(GREEN.into()));
}

Or querying Interaction component directly:

rust

fn button_system(mut query: Query<(&Interaction, &mut BackgroundColor), (Changed<Interaction>, With<Button>)>) {
  for (interaction, mut color) in &mut query {
    match interaction {
      Interaction::Pressed => *color = PRESSED_BUTTON.into(),
      Interaction::Hovered => *color = HOVERED_BUTTON.into(),
      Interaction::None => *color = NORMAL_BUTTON.into(),
    }
  }
}

Children

rust

commands.spawn((container, children![(child_node, child_text)]));

Z-ordering

First node in UiStack is furthest, rendered first. Last node receives interactions first.

ZIndex — local z-order within parent
GlobalZIndex — global z-order across all nodes

Widgets

bevy_ui_widgets (buttons, checkboxes, sliders, radio groups, scrollbars, menus) is enabled by default as part of the ui feature collection. The larger styled and themed bevy_feathers set requires enabling the bevy_feathers feature.

Relative cursor position

rust

use bevy::ui::RelativeCursorPosition;

// Spawn on a node to auto-track:
commands.spawn((Node { .. }, RelativeCursorPosition::default()));

// Query:
fn cursor_pos(query: Query<&RelativeCursorPosition>) {
  if let Ok(cursor) = query.single() {
    if let Some(pos) = cursor.normalized {
      info!("({:.1}, {:.1})", pos.x, pos.y);
    }
  }
}

Scrolling

rust

Node {
  overflow: Overflow::scroll_y(),
  ..default()
}

Spawning UI elements structure

rust

fn button() -> impl Bundle {
  (
    Button,
    Node { width: px(150), height: px(65), border: UiRect::all(px(5)),
           justify_content: JustifyContent::Center,
           align_items: AlignItems::Center, ..default() },
    BorderColor::all(Color::WHITE),
    BackgroundColor(Color::BLACK),
    children![(Text::new("Button"), TextColor(Color::srgb(0.9, 0.9, 0.9)))],
  )
}

Files

Just SKILL.md in .agents/skills/bevy-ui of nolantait/bevy-starter.

Open the folder on GitHubat commit dd6f56b

Compare with similar skills

Bevy UI next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Bevy UI compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Bevy UI this skillnolantait/bevy-starter	132	—	~1k	Automated safety check: Pass	MIT	today
Tailwindcss Developmentanonaddy/anonaddy	4.9k	10 repos	~865	Automated safety check: Pass	MIT	3 days ago
UI StylingOhh-889/skyroc	795	13 repos	~2.5k	Automated safety check: Pass	MIT	1 mo ago
MCP Developmentcoollabsio/coolify	63k	1 repos	~949	Automated safety check: Pass	MIT	today
Web Animation DesignbaptisteArno/typebot.io	11k	2 repos	~2.7k	Automated safety check: Pass	Custom licence	2 days ago
UI UX Pro Maxsaoudi-h/solar-icons	186	18 repos	~11k	Automated safety check: Notes	Custom licence	yesterday

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Questions about Bevy UI

What does Bevy UI do?

Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position. Bevy UI is an agent skill from nolantait/bevy-starter. Reference for Bevy UI — Node layout (Flexbox/CSS Grid), Val types, text, colors, buttons, interaction, scrolling, and relative cursor position.

When should I use Bevy UI?

Bevy UI fits situations like: tasks that involve CSS and styling.

How do I install Bevy UI in Claude Code?

Run `npx skills add nolantait/bevy-starter --skill bevy-ui -a claude-code`. Or copy the skill folder (.agents/skills/bevy-ui in nolantait/bevy-starter) into .claude/skills/bevy-ui in your project. Claude Code loads it when a task matches its description.

How do I install Bevy UI in Codex?

Run `npx skills add nolantait/bevy-starter --skill bevy-ui -a codex`. Or copy the skill folder (.agents/skills/bevy-ui in nolantait/bevy-starter) into .agents/skills/bevy-ui in your project. Codex loads it when a task matches its description.

Can I use Bevy UI in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nolantait/bevy-starter --skill bevy-ui -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/bevy-ui, .gemini/skills/bevy-ui, .github/skills/bevy-ui and .opencode/skills/bevy-ui in your project.

What does Bevy UI need to run?

SKILL.md names no scripts, command-line tools or credentials: Bevy UI is instructions for the agent only.

Does Bevy UI access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Bevy UI safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Bevy UI use?

Bevy UI is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Bevy UI use?

About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Bevy UI?

Skills that share tags, products or a category with Bevy UI: Tailwindcss Development (anonaddy/anonaddy, 4.9k stars), UI Styling (Ohh-889/skyroc, 795 stars), MCP Development (coollabsio/coolify, 63k stars) and Web Animation Design (baptisteArno/typebot.io, 11k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Bevy UI?

nolantait (a GitHub user) maintains it in nolantait/bevy-starter, which has 132 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 8, 2026.

Source: nolantait/bevy-starter on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Bevy UI

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Core concept

Node layout

Val types

Colors

Text in UI

Buttons and interaction

Children

Z-ordering

Widgets

Relative cursor position

Scrolling

Spawning UI elements structure

Files

Compare with similar skills

Similar skills

More from nolantait/bevy-starter

Related

Questions about Bevy UI