Agent skill

Mira Chart Race

by sandeco in sandeco/mira-animator

Cria um slide de gráfico de corrida no Mira: série temporal animada que corre no tempo, toca uma vez e para no fim.

Custom licenceAuto-check passedDocuments & Office

Install Mira Chart Race

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

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

GitHub CLI
$ gh skill install sandeco/mira-animator mira-chart-race --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-race .claude/skills/mira-chart-race && 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/

Facts

Skill name
mira-chart-race
GitHub stars
218
Token cost
~4.2k tokens
SKILL.md length
840 words
Files
1
Skills in repo
57
Repo updated
First seen
Licence
Custom licence

At a glance

Cria um slide de gráfico de corrida no Mira: série temporal animada que corre no tempo, toca uma vez e para no fim.

  • Works in 5 steps: Idioma: siga agents/_shared/idioma.md.… → Cores: laranja da marca #FF904D como… → D3 v7: o motor usa o d3 global que já… → …
  • Tasks that involve Slides and decks
  • SKILL.md covers Regras herdadas (obrigatórias), O modelo mental, Formato do CSV (largo) and Passos, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Mira Chart Race is an agent skill from sandeco/mira-animator. Cria um slide de gráfico de corrida no Mira: série temporal animada que corre no tempo, toca uma vez e para no fim. Dois modos: "bars" (barras que trocam de posição no ranking) e "lines" (linhas desenhadas com o rótulo perseguindo a ponta); dados em CSV largo embutidos, roda por file:// offline, gera section em D3 v7 no tema do Mira. Use SEMPRE que o usuário disser /mira-chart-race, gráfico de corrida, corrida de barras, bar chart race, racing chart, gráfico animado no tempo, dados temporais animados, ranking ao…

Its SKILL.md is about 4.2k 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 Documents & Office, covering Slides and decks and CSV and tabular files. 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 CSV and tabular files

Example prompts

  • “(barras que trocam de posição no ranking) e”
  • “/mira-chart-race”

Workflow steps

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

  1. Idioma: siga agents/_shared/idioma.md. Todo texto visível revisado, acentuação 100% correta. Nenhum travessão.
  2. Cores: laranja da marca #FF904D como primeira cor da paleta; tema mira-dark. Nunca roxo como cor principal.
  3. D3 v7: o motor usa o d3 global que já vem no do deck. Consulte agents/mira-animator/references/diretrizes-d3.md` se precisar ajustar.
  4. Toca uma vez e para: entra animando e para no último período, sem reiniciar. É uma exceção consciente à regra zero do Mira (loop…
  5. Output: salve em decks//. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are html).

    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 Race loads about 4.2k tokens when it runs. Until then it costs about 171 tokens; SKILL.md has 840 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~171
When it runs · the whole SKILL.md, loaded when a task matches
~4.2k

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 840 words (~4,188 tokens).

“Pega uma série temporal (vários períodos, várias séries) e devolve um slide onde os dados correm no tempo: o período avança, as barras trocam de posição (ou as linhas vão sendo desenhadas) e, ao chegar no fim, para no quadro…”

— opening of SKILL.md by sandeco, Custom licence
name
mira-chart-race

Read the full SKILL.md on GitHub

Files

Just SKILL.md in agents/mira-chart-race of sandeco/mira-animator.

Open the folder on GitHubat commit d857f32

Compare with similar skills

Mira Chart Race 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 Race compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Mira Chart Race this skillsandeco/mira-animator218—~4.2kAutomated safety check: PassCustom licence
Exportai-analyst-lab/ai-analyst304—~3.8kAutomated safety check: PassMIT
Documentszhongkaifu/TensorSharp568—~4.2kAutomated safety check: PassBSD-3-Clause
Office ArtifactsPrismer-AI/PrismerCloud1.6k—~2.6kAutomated safety check: PassMIT
Data Table Managern8n-io/n8n207k—~2.3kAutomated safety check: PassCustom licence
Instrument Data To Allotropeaws-samples/amazon-bedrock-agents-healthcare-lifesciences2742 repos~2.7kAutomated safety check: PassApache-2.0

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Questions about Mira Chart Race

What does Mira Chart Race do?

Cria um slide de gráfico de corrida no Mira: série temporal animada que corre no tempo, toca uma vez e para no fim. Mira Chart Race is an agent skill from sandeco/mira-animator. Cria um slide de gráfico de corrida no Mira: série temporal animada que corre no tempo, toca uma vez e para no fim.

When should I use Mira Chart Race?

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

How do I install Mira Chart Race in Claude Code?

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

How do I install Mira Chart Race in Codex?

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

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

What does Mira Chart Race need to run?

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

Does Mira Chart Race 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 Race 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 Race use?

Mira Chart Race 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 Race use?

About 4.2k tokens (SKILL.md is roughly 17k 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 Chart Race?

Skills that share tags, products or a category with Mira Chart Race: 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 Race?

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.