Agent skill

Theme System

by openchamber in openchamber/openchamber

A skill your agent uses when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons.

MITAuto-check passedFrontend & Design

Install Theme System

skills CLI

$ npx skills add openchamber/openchamber --skill theme-system -a claude-code

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

GitHub CLI

$ gh skill install openchamber/openchamber theme-system --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/openchamber/openchamber.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/theme-system .claude/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .claude/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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/openchamber/openchamber/tree/main/.agents/skills/theme-system

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 openchamber/openchamber --skill theme-system -a codex

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

GitHub CLI

$ gh skill install openchamber/openchamber theme-system --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/openchamber/openchamber.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/theme-system .agents/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .agents/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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 openchamber/openchamber --skill theme-system -a cursor

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

GitHub CLI

$ gh skill install openchamber/openchamber theme-system --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/openchamber/openchamber.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/theme-system .cursor/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .cursor/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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/openchamber/openchamber.git --path .agents/skills/theme-system

--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 openchamber/openchamber --skill theme-system -a gemini-cli

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

GitHub CLI

$ gh skill install openchamber/openchamber theme-system --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/openchamber/openchamber.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/theme-system .gemini/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .gemini/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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 openchamber/openchamber theme-system

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 openchamber/openchamber --skill theme-system -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/openchamber/openchamber.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/theme-system .github/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .github/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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 openchamber/openchamber --skill theme-system -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 openchamber/openchamber theme-system --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/openchamber/openchamber.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/theme-system .opencode/skills/theme-system && 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 "theme-system" agent skill from https://github.com/openchamber/openchamber/tree/main/.agents/skills/theme-system into .opencode/skills/theme-system/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "theme-system", 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: theme-system
GitHub stars: 11k
Token cost: ~1.4k tokens
SKILL.md length: 620 words
Files: 4 (incl. references)
Skills in repo: 20
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

A skill your agent uses when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons.

Works in 6 steps: Code display -> syntax.* → Error/warning/success/info -> status.* → Primary CTA -> primary.* → …
Modifying OpenChamber UI components
SKILL.md covers Core Rules, Load References By Task, Token Decision and Button Contract, plus 4 more sections
Calls bun

What it does

Theme System is an agent skill from openchamber/openchamber. Use when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/adding-themes.md`, `references/icons.md` and `references/tokens-and-examples.md`).

It sits in Frontend & Design. The repository describes itself as: Agentic Development Environment based on OpenCode AI agent. The licence is MIT.

When your agent uses it

Modifying OpenChamber UI components

Example prompts

“/theme-system”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

Code display -> syntax.*
Error/warning/success/info -> status.*
Primary CTA -> primary.*
Hover/pressed/focus -> interactive.*
Selected/active state -> interactive.selection*
Background/text/border layer -> surface.* and semantic utility classes

What it can do on your machine

Read from SKILL.md and the folder at commit eabe419. 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
Shell commands in SKILL.md call:
- bun
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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

Theme System loads about 1.4k tokens when it runs, and up to ~3.6k if it reads all its reference files. Until then it costs about 32 tokens; SKILL.md has 620 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~32
When it runs · the whole SKILL.md, loaded when a task matches: ~1.4k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~3.6k

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 openchamber/openchamber at commit eabe419, republished under its MIT licence (© openchamber). 620 words, ~1,362 tokens.

Download SKILL.mdSave it as .claude/skills/theme-system/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.

name: theme-system
description: Use when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons.

Theme System

Core Rules

Use semantic OpenChamber theme tokens; never hardcode hex colors or generic Tailwind palette colors.
Use shared UI primitives before introducing feature-local controls.
Use the shared Button; do not create button wrappers such as ButtonSmall or ButtonLarge.
Every dropdown-style value-picker trigger takes its chrome from dropdownTriggerVariants in packages/ui/src/components/ui/dropdown-trigger.ts; call sites add layout classes only. Deliberately chrome-less pickers in composers or headers are the exception.
Use the sprite-based Icon; never import icons directly from @remixicon/react.
Apply hover tokens only to interactive elements.
Use status colors only for actual status/feedback.
Use selection tokens for selected state and primary tokens for primary actions.

Load References By Task

Task	Required reference
Choosing colors/tokens or reviewing styled examples	`references/tokens-and-examples.md`
Adding, converting, storing, or generating icons	`references/icons.md`
Adding built-in or custom themes	`references/adding-themes.md`

Load every matching reference before editing. User-facing or accessible text must load locale-ui-patterns. Settings composition is owned by settings-ui-patterns, which declares theme-system as its one-way companion.

Token Decision

Code display -> syntax.*
Error/warning/success/info -> status.*
Primary CTA -> primary.*
Hover/pressed/focus -> interactive.*
Selected/active state -> interactive.selection*
Background/text/border layer -> surface.* and semantic utility classes

Prefer CSS variables/classes for component styling. Use useThemeSystem() only when an API requires resolved color values.

Button Contract

Use Button from packages/ui/src/components/ui/button.tsx.

Variant	Use
`default`	Primary local action
`outline`	Visible secondary action
`secondary`	Soft secondary action
`ghost`	Quiet row/toolbar action
`destructive`	Destructive action
`chip`	Compact selectable option with `aria-pressed`
`link`	Rare inline text action

Size	Use
`xs`	Dense row/list control
`sm`	Compact action
`default`	Standard action
`lg`	Prominent action
`icon`	Icon-only square action

Do not hardcode button height/padding when a size variant exists. Do not recreate selection/destructive styling with ad-hoc classes.

Menus, selects, and autocomplete pickers with ArrowDown/ArrowUp navigation must also support Ctrl+N/Ctrl+P, including submenus and searchable lists.
Keep this behavior in shared components so callers inherit it. Use the keyboard mapping in packages/ui/src/components/ui/dropdown-navigation.ts; feature code must not duplicate key detection.
Lists that own their active option or stop keyboard propagation must call the shared navigation helper at their own event boundary. Wrapping a custom list in a dropdown does not guarantee that its navigation events reach the wrapper.
Route both key pairs through the same selection logic, preserving disabled-item skipping, boundary or wrap behavior, highlight, and scroll visibility. Consume each navigation event once, only while the menu or picker is active; preserve IME text entry and other modifier chords.
Verify Ctrl+N/P alongside arrow keys in the real component, including search-input focus, submenus, and closed state. A key-mapping unit test alone does not verify event propagation or focus behavior.

Show full SKILL.md (194 more words)Show less

Icon Contract

tsx

import { Icon } from '@/components/icon/Icon';

<Icon name="check" className="size-4" />

Use IconName for icon values stored in arrays, objects, state, or config. Icon has no size prop. Run bun run icons:generate when introducing a sprite name, and never edit sprite.ts manually. Load references/icons.md for the complete workflow.

Animation Contract

Animate only transform and opacity. Use transform: rotate(...), not the individual rotate property. Non-composited properties recalculate style continuously; geometry also triggers layout, and wrappers, will-change, contain, or stepped timing do not remove that cost. Animate only while conveying live information.

For any other technique, load performance-engineering and scripts/perf/DOCUMENTATION.md, measure it with bun run profile:animation, and add a fixture variant when needed. This skill owns animation styling; performance-engineering owns performance evidence.

Completion Criteria

Animations are limited to transform and opacity, or their cost was measured and accepted.
No hardcoded/palette colors were introduced.
Buttons use shared variants and sizes.
Menus and pickers satisfy the keyboard navigation contract without caller-specific key handling for standard shared components.
Icons use Icon/IconName, and generated sprite changes are intentional.
Hover, selection, primary, and status semantics are distinct.
Light/dark/high-contrast and long-text states remain legible.
Every applicable contract and loaded task reference was verified with relevant type-check, visual/runtime validation, and generated-asset checks.

Files

SKILL.md and 3 other files (references) in .agents/skills/theme-system of openchamber/openchamber.

SKILL.md
references/adding-themes.md
references/icons.md
references/tokens-and-examples.md

Open the folder on GitHubat commit eabe419

Compare with similar skills

Theme System 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.

Theme System compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Theme System this skillopenchamber/openchamber	11k	—	~1.4k	Automated safety check: Pass	MIT	today
Web Artifacts Builderanthropics/skills	180k	41 repos	~769	Automated safety check: Pass	Apache-2.0	2 days ago
React Doctormakeplane/plane	61k	12 repos	~657	Automated safety check: Pass	AGPL-3.0	today
Impeccablebestofjs/bestofjs	3.1k	27 repos	~2.6k	Automated safety check: Pass	MIT	3 days ago
Figma Design System Builderwarpdotdev/warp	65k	2 repos	~4.4k	Automated safety check: Pass	AGPL-3.0	today
Web Interface Guidelines Reviewervercel-labs/openreview	1.7k	98 repos	~308	Automated safety check: Pass	None	7 mo ago

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All 20 skills in this repo

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Drag To Reorder
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Locale UI Patterns
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Performance Engineering
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A skill your agent uses when implementing or reviewing code on interaction, render, event, polling, synchronization, list-processing, store-selector, cache, indexing, or high-volume data paths; when…
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Serve Sim
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Clack CLI Patterns
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Questions about Theme System

What does Theme System do?

A skill your agent uses when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons. Theme System is an agent skill from openchamber/openchamber. Use when creating or modifying OpenChamber UI components, styling, colors, buttons, visual states, themes, or icons.

When should I use Theme System?

Theme System fits situations like: modifying OpenChamber UI components.

How do I install Theme System in Claude Code?

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

How do I install Theme System in Codex?

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

Can I use Theme System 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 openchamber/openchamber --skill theme-system -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/theme-system, .gemini/skills/theme-system, .github/skills/theme-system and .opencode/skills/theme-system in your project.

What does Theme System need to run?

Going by SKILL.md and its folder, Theme System needs the command-line tools its instructions call (bun).

Does Theme System access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Theme System 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 Theme System use?

Theme System 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 Theme System use?

About 1.4k tokens (SKILL.md is roughly 5.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.2k tokens, read only when the agent opens those files.

What are the alternatives to Theme System?

Skills that share tags, products or a category with Theme System: Web Artifacts Builder (anthropics/skills, 180k stars), React Doctor (makeplane/plane, 61k stars), Impeccable (bestofjs/bestofjs, 3.1k stars) and Figma Design System Builder (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Theme System?

openchamber (a GitHub organization) maintains it in openchamber/openchamber, which has 11,259 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 8, 2026.

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

Install Theme System

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Theme System

Core Rules

Load References By Task

Token Decision

Button Contract

Keyboard Navigation Contract

Icon Contract

Animation Contract

Completion Criteria

Files

Compare with similar skills

Similar skills

More from openchamber/openchamber

Related

Questions about Theme System