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-agents-helpgit 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-agents-help)<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-agents-help"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-agents-help.svg" alt="Measured on agentmods" 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 | $0.00035 | $0.02062 |
| Opus 5 | $0.00017 | $0.01031 |
| Sonnet 5 | $0.00007 | $0.00412 |
| Haiku 4.5 | $0.00003 | $0.00206 |
Grade A, and why
reversa-agents-help 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 8d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apresente exatamente o texto abaixo, sem alterações, sem resumir.
Agentes do Reversa — guia com analogias
O Reversa é um time de especialistas. Cada agente faz uma coisa só — e faz bem.
Menu principal
| O que você quer fazer? | Comando | Time |
|---|---|---|
| Descobrir e documentar um sistema legado | /reversa |
Reversa Agents Core |
| Clarear a ideia antes de qualquer código | /reversa-brainstorm |
Ideation Agents |
| Criar um projeto novo a partir de uma ideia | /reversa-new |
Code New Project Agents |
| Implementar ou evoluir código a partir das specs | /reversa-forward |
Code Forward Agents |
| Planejar a migração de um legado | /reversa-migrate |
Migration Agents |
| Gerar um mini-site visual da documentação | /reversa-docs |
Documentation Agents |
| Entender qual agente usar | /reversa-agents-help |
Guia de agentes |
Os times de Pricing e Translators têm comandos especializados. Use /reversa-pricing-profile, /reversa-pricing-size, /reversa-pricing-estimate ou /reversa-n8n conforme a necessidade.
💡 Reversa Brainstorm, a mesa antes da obra
Comando: /reversa-brainstorm
Antes de o pedreiro levantar parede, alguém senta na mesa e pergunta o que se quer com a casa: para quem é, o que dói morar como está hoje, quais os caminhos possíveis, o que pode dar errado. Ninguém desenha planta nessa mesa. Só se decide o que vale construir.
Use o Reversa Brainstorm quando a ideia ainda está bruta, em projeto novo ou em legado. Ele conduz
Framer → Explorer → Challenger → Arbiter → Pre-Spece entrega o resultado ao/reversa-new(greenfield) ou ao/reversa-requirements(legado).
Os cinco da mesa:
| Agente | Analogia | Comando |
|---|---|---|
| Framer | O médico que não aceita "quero remédio X" e pergunta onde dói | /reversa-framer |
| Explorer | O guia que mostra todas as trilhas, inclusive a de não subir a montanha | /reversa-explorer |
| Challenger | O advogado do diabo que já viu esse projeto fracassar antes | /reversa-challenger |
| Arbiter | O juiz que dá o veredito e assume o que se perde com ele, mas quem decide é você | /reversa-arbiter |
| Pre-Spec | O escrivão que entrega o mínimo para a obra começar, e nada além | /reversa-pre-spec |
What ships with it
1 file 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.
- 8d ago First seen · 179 lines · 35 tokens per session scan A 405b5e2eeef1
reversa-agents-help is a skill published in the GitHub repository sandeco/reversa (1,567 stars, last pushed today), licensed MIT. It adds 35 tokens to every session and 2,062 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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