Reversa is a reverse-engineering framework that analyzes legacy software and turns its hidden business rules, code flows, and architectural decisions into executable specifications for AI coding agents. Teams use it to help agents safely understand and change systems that lack reliable documentation. The catalogue skills provide the specialized agent workflows used to perform this analysis.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add sandeco/reversa --skill reversa-highcharts-visualizergit clone --depth 1 https://github.com/sandeco/reversaWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/sandeco/reversa/reversa-highcharts-visualizer)<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-highcharts-visualizer"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-highcharts-visualizer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-highcharts-visualizer"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-highcharts-visualizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00045 | $0.01755 |
| Opus 5 | $0.00023 | $0.00877 |
| Sonnet 5 | $0.00009 | $0.00351 |
| Haiku 4.5 | $0.00005 | $0.00176 |
Grade A, and why
reversa-highcharts-visualizer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Highcharts Visualizer
Cria visualizações de dados profissionais usando Highcharts.js. Gera sempre HTML standalone (arquivo único, self-contained) com gráficos interativos, animados, responsivos e acessíveis.
Fluxo de Trabalho
1. Receber os Dados
Os dados podem vir de:
- Inline na conversa → Usuário cola dados, tabela, lista de valores
- CSV/JSON enviado → Analise o conteúdo usando
view_filee injete os dados diretamente no HTML gerado. Nunca crie scripts em Python. - Planilha Excel → Extraia os dados das tabelas e injete-os no HTML. Não use Python.
- Dados de exemplo → Quando o usuário quer explorar um tipo de gráfico sem dados reais
- URL de dados → Usar
web_fetchpara buscar dados remotos
2. Analisar os Dados
Antes de gerar o gráfico, entender a natureza dos dados:
- Dimensões: quantas séries? Quantas categorias? Temporal ou categórico?
- Escala: range dos valores, outliers, distribuição
- Relações: comparação, composição, distribuição, tendência, correlação
- Volume: poucos pontos (<100), médio (100-10K), grande (>10K — usar boost module)
Analise os dados internamente após a leitura e injete as tags via string. Não crie programas Python intermediários.
3. Escolher o Tipo de Gráfico
Consultar references/CHART_CATALOG.md para o catálogo completo de 40+ tipos de gráfico,
com orientação de quando usar cada um.
Regra de decisão rápida:
| Objetivo | Tipos recomendados |
|---|---|
| Tendência ao longo do tempo | line, area, spline, areaspline |
| Comparação entre categorias | column, bar, lollipop, bullet |
| Composição / proporção | pie, donut, stacked column, stacked area, treemap, sunburst |
| Distribuição | histogram, box plot, scatter, bell curve |
| Correlação | scatter, bubble, heatmap |
| Fluxo / processo | sankey, dependency wheel, network graph |
| Hierarquia | treemap, sunburst, organization chart |
| Geográfico | map (Highcharts Maps module) |
| Financeiro / timeline | stock chart (candlestick, OHLC, flags) |
| Progresso / KPI | gauge, solid gauge, activity gauge |
| Projeto / planejamento | gantt chart |
| Funil / conversão | funnel, pyramid |
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 124 lines · 45 tokens per session scan A e1fbcf207edc
reversa-highcharts-visualizer is a skill published in the GitHub repository sandeco/reversa (1,571 stars, last pushed 2d ago), licensed MIT. It adds 45 tokens to every session and 1,755 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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