Visual Brand Extractor
gooseworks-ai/goose-skills
Extract visual branding (colors, typography, layout patterns) from a client's website and generate a style preset compatible with the HTML slides skill and a brand config JSON for the content asset…
Motor de montagem atômica que cria apresentações interativas em HTML/Tailwind com componentes Glassmorphism modulares e navegação card-a-card.
Install Mira Builder
$ npx skills add sandeco/mira-animator --skill mira-builder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sandeco/mira-animator mira-builder --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agents/mira-builder .claude/skills/mira-builder && rm -rf skills-srcUse ~/.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/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .claude/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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 install https://github.com/sandeco/mira-animator/tree/main/agents/mira-builderType 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.
$ npx skills add sandeco/mira-animator --skill mira-builder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sandeco/mira-animator mira-builder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agents/mira-builder .agents/skills/mira-builder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .agents/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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.
$ npx skills add sandeco/mira-animator --skill mira-builder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sandeco/mira-animator mira-builder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agents/mira-builder .cursor/skills/mira-builder && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .cursor/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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 https://github.com/sandeco/mira-animator.git --path agents/mira-builder--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add sandeco/mira-animator --skill mira-builder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sandeco/mira-animator mira-builder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agents/mira-builder .gemini/skills/mira-builder && rm -rf skills-srcUse ~/.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/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .gemini/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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.
$ gh skill install sandeco/mira-animator mira-builderInstalls 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).
$ npx skills add sandeco/mira-animator --skill mira-builder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .github/skills && cp -r skills-src/agents/mira-builder .github/skills/mira-builder && rm -rf skills-srcUse ~/.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/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .github/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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.
$ npx skills add sandeco/mira-animator --skill mira-builder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sandeco/mira-animator mira-builder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agents/mira-builder .opencode/skills/mira-builder && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "mira-builder" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-builder into .opencode/skills/mira-builder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-builder", 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
mira-builder- GitHub stars
- 218
- Token cost
- ~3.1k tokens
- SKILL.md length
- 1,446 words
- Files
- 22
- Skills in repo
- 57
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Motor de montagem atômica que cria apresentações interativas em HTML/Tailwind com componentes Glassmorphism modulares e navegação card-a-card.
- Works in 4 steps: Leia 2+ exemplos de exemplos_de_sucesso/… → Leia as imagens em decks//assets/ (ja… → Identifique a logo em… → …
- Tasks that involve Slides and decks
- SKILL.md covers REGRA ZERO, REGRA DE IDIOMA — PORTUGUÊS…, 📝 Instruções de Execução and 🎯 Regras de Composicao, plus 4 more sections
- Calls npx
What it does
Mira Builder is an agent skill from sandeco/mira-animator. Motor de montagem atômica que cria apresentações interativas em HTML/Tailwind com componentes Glassmorphism modulares e navegação card-a-card. Use SEMPRE que o usuário quiser montar ou gerar uma apresentação, transformar um plano de slides (do /mira-planner) ou um capítulo em HTML, criar um deck do zero, ou pedir slides interativos. Normalmente roda depois do /mira-planner e antes do /mira-validator.
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 24 other files.
It sits in Frontend & Design, covering Slides and decks and CSS and styling. It works with Tailwind CSS. The repository describes itself as: Agentes e templates para criação de slides animados com D3.js em HTML.
When your agent uses it
- Tasks that involve Slides and decks
- Tasks that involve CSS and styling
Example prompts
- “/mira-builder”
Requirements
- Node.js
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Leia 2+ exemplos de exemplos_de_sucesso/ (padrao visual)
- Leia as imagens em decks//assets/ (ja inventariadas pelo planejador)
- Identifique a logo em logo_canal/canal_sandeco_logo.png (sera copiada para o destino)
- Leia video_lista.md para confirmar o video escolhido pelo planejador
What it can do on your machine
Read from SKILL.md and the folder at commit d857f32. 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:
npx
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):
lucide.dev
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
Mira Builder loads about 3.1k tokens when it runs. Until then it costs about 104 tokens; SKILL.md has 1,446 words of instructions outside code blocks.
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,446 words (~3,107 tokens).
“Antes de gerar qualquer slide, leia ao menos 2 dos 3 arquivos de /exemplos_de_sucesso/ (01.html, 02.html, 03.html). Foram editados à mão com o usuário e definem o padrão de qualidade a replicar — não gere output one-shot sem consultá-los.”
- name
- mira-builder
Files
SKILL.md and 21 other files in agents/mira-builder of sandeco/mira-animator.
- SKILL.md
- exemplos_de_sucesso/01.html
- exemplos_de_sucesso/02.html
- exemplos_de_sucesso/03.html
- exemplos_de_sucesso/canal_sandeco_logo.png
- logo_canal/canal_sandeco_logo.png
- templates/card_citacao.html
- templates/card_code.html
- templates/card_cta.html
- templates/card_d3.html
- templates/card_destaques.html
- templates/card_grid.html
- templates/card_imagem.html
- templates/card_lista.html
- templates/card_progresso.html
- templates/card_tabela.html
- templates/card_timeline.html
- templates/card_video_bg.html
- … and 4 more
Open the folder on GitHubat commit d857f32
Compare with similar skills
Mira Builder 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Mira Builder this skillsandeco/mira-animator | 218 | — | ~3.1k | Automated safety check: Pass | Custom licence | |
| Visual Brand Extractorgooseworks-ai/goose-skills | 1.2k | 1 repos | ~3.8k | Automated safety check: Pass | MIT | |
| Tailwindcss Developmentanonaddy/anonaddy | 4.9k | 10 repos | ~865 | Automated safety check: Pass | MIT | |
| UI StylingOhh-889/skyroc | 795 | 13 repos | ~2.5k | Automated safety check: Pass | MIT | |
| MCP Developmentcoollabsio/coolify | 63k | 1 repos | ~949 | Automated safety check: Pass | MIT | |
| Design SystemOhh-889/skyroc | 795 | 11 repos | ~1.7k | Automated safety check: Pass | MIT |
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Design System
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Related
Works with
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Questions about Mira Builder
What does Mira Builder do?
Motor de montagem atômica que cria apresentações interativas em HTML/Tailwind com componentes Glassmorphism modulares e navegação card-a-card. Mira Builder is an agent skill from sandeco/mira-animator. Motor de montagem atômica que cria apresentações interativas em HTML/Tailwind com componentes Glassmorphism modulares e navegação card-a-card.
When should I use Mira Builder?
Mira Builder fits situations like: tasks that involve Slides and decks; tasks that involve CSS and styling.
How do I install Mira Builder in Claude Code?
Run `npx skills add sandeco/mira-animator --skill mira-builder -a claude-code`. Or copy the skill folder (agents/mira-builder in sandeco/mira-animator) into .claude/skills/mira-builder in your project. Claude Code loads it when a task matches its description.
How do I install Mira Builder in Codex?
Run `npx skills add sandeco/mira-animator --skill mira-builder -a codex`. Or copy the skill folder (agents/mira-builder in sandeco/mira-animator) into .agents/skills/mira-builder in your project. Codex loads it when a task matches its description.
Can I use Mira Builder 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 sandeco/mira-animator --skill mira-builder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/mira-builder, .gemini/skills/mira-builder, .github/skills/mira-builder and .opencode/skills/mira-builder in your project.
What does Mira Builder need to run?
Going by SKILL.md and its folder, Mira Builder needs the command-line tools its instructions call (npx). Our summary lists: Node.js.
Does Mira Builder access the network?
SKILL.md names 1 domain. As links in the text: lucide.dev. This is read from the text; nothing was executed.
Is Mira Builder 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 Mira Builder use?
Mira Builder has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Mira Builder use?
About 3.1k tokens (SKILL.md is roughly 12k 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 Mira Builder?
Skills that share tags, products or a category with Mira Builder: Visual Brand Extractor (gooseworks-ai/goose-skills, 1.2k stars), Tailwindcss Development (anonaddy/anonaddy, 4.9k stars), UI Styling (Ohh-889/skyroc, 795 stars) and MCP Development (coollabsio/coolify, 63k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Mira Builder?
sandeco (a GitHub user) maintains it in sandeco/mira-animator, which has 218 GitHub stars. The repository holds 57 skills in this directory. The repository was last updated on September 14, 2026.
Source: sandeco/mira-animator on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.