Agent skill

Mira Chart

Especialista em gráficos de dados para slides do Mira. An agent skill from sandeco/mira-animator.

Custom licenceAuto-check passedDocuments & Office

Install Mira Chart

skills CLI

$ npx skills add sandeco/mira-animator --skill mira-chart -a claude-code

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

GitHub CLI

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

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 sandeco/mira-animator --skill mira-chart -a codex

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

GitHub CLI

$ gh skill install sandeco/mira-animator mira-chart --agent codex

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

Manual copy

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

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

GitHub CLI

$ gh skill install sandeco/mira-animator mira-chart --agent cursor

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

Manual copy

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

--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 sandeco/mira-animator --skill mira-chart -a gemini-cli

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

GitHub CLI

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

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 sandeco/mira-animator --skill mira-chart -a github-copilot

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

Manual copy

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

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

Manual copy

$ git clone --depth 1 https://github.com/sandeco/mira-animator.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agents/mira-chart .opencode/skills/mira-chart && 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 "mira-chart" agent skill from https://github.com/sandeco/mira-animator/tree/main/agents/mira-chart into .opencode/skills/mira-chart/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "mira-chart", 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-chart
GitHub stars: 218
Token cost: ~1.3k tokens
SKILL.md length: 619 words
Files: 2 (incl. references)
Skills in repo: 57
Repo updated: Sep 14, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Especialista em gráficos de dados para slides do Mira. An agent skill from sandeco/mira-animator.

Works in 4 steps: Idioma: siga agents/_shared/idioma.md.… → Cores: parta das CSS variables do tema… → Diretrizes D3: consulte… → …
Tasks that involve CSV and tabular files
SKILL.md covers Regras herdadas (obrigatórias), Entradas aceitas, Workflow and Princípios de design (beleza,…, plus 1 more section
Calls node

What it does

Mira Chart is an agent skill from sandeco/mira-animator. Especialista em gráficos de dados para slides do Mira. Recebe dados (CSV, JSON, TSV, tabela markdown, texto colado) ou imagens (print de gráfico, foto de quadro branco, rascunho à mão) e gera um gráfico D3.js; usa o tipo pedido ou recomenda a melhor visualização. Use esta skill SEMPRE que o usuário disser: "criar gráfico", "plotar", "gráfico de barras", "gráfico de linhas", "pizza", "scatter", "visualizar esses dados", "transformar esse CSV em gráfico", "recriar esse gráfico", "desenhei um gráfico", "fiz um…

Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/galeria-d3.md`).

It sits in Documents & Office, covering CSV and tabular files and Slides and decks. It works with D3.js. 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 CSV and tabular files
Tasks that involve Slides and decks

Example prompts

“criar gráfico”
“plotar”
“gráfico de barras”
“/mira-chart”

Workflow steps

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

Idioma: siga agents/_shared/idioma.md. Todo texto visível revisado, acentuação 100% correta.
Cores: parta das CSS variables do tema do deck (--mira-primary etc.). Paletas de apoio podem vir dos schemes do D3 (d3.schemeTableau10…
Diretrizes D3: consulte agents/mira-animator/references/diretrizes-d3.md (v7, padrão join, escalas comentadas).
Output: salve SEMPRE em decks//assets/. Nunca escreva em fontes vinculadas.

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:
- node
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

Mira Chart loads about 1.3k tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 173 tokens; SKILL.md has 619 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~173
When it runs · the whole SKILL.md, loaded when a task matches: ~1.3k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.2k

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 619 words (~1,273 tokens).

“Porta de entrada única para gráficos de dados no Mira: pega o que o usuário tem (planilha, JSON, print, rascunho à mão) e devolve um gráfico D3.js bonito, leve e impactante, pronto para o deck.”

— opening of SKILL.md by sandeco, Custom licence

name: mira-chart

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in agents/mira-chart of sandeco/mira-animator.

SKILL.md
references/galeria-d3.md

Open the folder on GitHubat commit d857f32

Compare with similar skills

Mira Chart 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.

Mira Chart compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Mira Chart this skillsandeco/mira-animator	218	—	~1.3k	Automated safety check: Pass	Custom licence	26 days ago
Exportai-analyst-lab/ai-analyst	304	—	~3.8k	Automated safety check: Pass	MIT	10 days ago
Documentszhongkaifu/TensorSharp	568	—	~4.2k	Automated safety check: Pass	BSD-3-Clause	today
Office ArtifactsPrismer-AI/PrismerCloud	1.6k	—	~2.6k	Automated safety check: Pass	MIT	today
Data Table Managern8n-io/n8n	207k	—	~2.3k	Automated safety check: Pass	Custom licence	today
Instrument Data To Allotropeaws-samples/amazon-bedrock-agents-healthcare-lifesciences	274	2 repos	~2.7k	Automated safety check: Pass	Apache-2.0	9 days ago

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More from sandeco/mira-animator

All 57 skills in this repo

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Mira Img Animator
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Mira Visuals
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Gera imagens estáticas para slides do Mira: painéis 1920x800, infográficos 1920x1920, diagramas técnicos e gráficos — via D3.js com captura PNG, ou fotorrealismo via prompt JSON (mira-image-prompt).
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Mira Design Audience Journey
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Mira Direct Slide Sequence
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Works with

D3.js

Questions about Mira Chart

What does Mira Chart do?

Especialista em gráficos de dados para slides do Mira. An agent skill from sandeco/mira-animator. Mira Chart is an agent skill from sandeco/mira-animator. Especialista em gráficos de dados para slides do Mira.

When should I use Mira Chart?

Mira Chart fits situations like: tasks that involve CSV and tabular files; tasks that involve Slides and decks.

How do I install Mira Chart in Claude Code?

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

How do I install Mira Chart in Codex?

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

Can I use Mira Chart 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-chart -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-chart, .gemini/skills/mira-chart, .github/skills/mira-chart and .opencode/skills/mira-chart in your project.

What does Mira Chart need to run?

Going by SKILL.md and its folder, Mira Chart needs the command-line tools its instructions call (node).

Does Mira Chart 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 Mira Chart 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 Chart use?

Mira Chart 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 Chart use?

About 1.3k tokens (SKILL.md is roughly 5.1k 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 942 tokens, read only when the agent opens those files.

What are the alternatives to Mira Chart?

Skills that share tags, products or a category with Mira Chart: Export (ai-analyst-lab/ai-analyst, 304 stars), Documents (zhongkaifu/TensorSharp, 568 stars), Office Artifacts (Prismer-AI/PrismerCloud, 1.6k stars) and Data Table Manager (n8n-io/n8n, 207k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Mira Chart?

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.

Install Mira Chart

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

Files

Compare with similar skills

Similar skills

More from sandeco/mira-animator

Related

Questions about Mira Chart