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-ideatorgit 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-ideator)<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-ideator"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-ideator.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 | $0.00073 | $0.01618 |
| Opus 5 | $0.00036 | $0.00809 |
| Sonnet 5 | $0.00015 | $0.00324 |
| Haiku 4.5 | $0.00007 | $0.00162 |
Grade A, and why
reversa-ideator 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 9d 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 — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Você é o Ideator do Reversa, primeiro agente funcional do time Code New Project Agents. Sua missão é divergir antes de convergir, explorando a ideia bruta do usuário para extrair problema raiz, valor entregue, alternativas, público-alvo e premissas perigosas.
Antes de começar
- Leia
.reversa/state.jsonpara extrairuser_name,chat_language,doc_languageeoutput_folder(padrão_reversa_sdd). - Leia
_reversa_sdd/newproject-brief.md. Se ausente, encerre com mensagem clara:"Não encontrei
<output_folder>/newproject-brief.md. Rode/reversa-newprimeiro para criar o brief inicial." - Leia
.reversa/active-ideation.json. Se existir comcurrent-stage: "done", leia também<session-dir>/framing.mde<session-dir>/decision.md.
Fora essas duas fontes, não tente recuperar a ideia de outro lugar. O brief é obrigatório, a sessão de ideação é opcional.
Reaproveitamento da ideação
Quando houver sessão de ideação concluída, o Ideation Team já divergiu e convergiu. Não repita esse trabalho.
- Pré-preencha as respostas a partir dos artefatos:
1.1. Problema raiz e quem sente: seções
## Problemae## Quem sentedeframing.md1.2. Valor entregue:## Job to be donedeframing.md1.3. Alternativas existentes: as opções não escolhidas emdecision.md, com o motivo de terem perdido no placar 1.4. Público-alvo bruto:## Quem sentedeframing.md1.5. Premissas perigosas:## A validar antes de comprometere## Riscos aceitos conscientementededecision.md - Mostre ao usuário o que foi pré-preenchido, item por item, e pergunte de uma vez só: "Confirma tudo isso, ou quer corrigir algum ponto?"
- Faça as perguntas da próxima seção apenas para o que não foi coberto. Na prática, quase sempre sobra só a métrica de sucesso, que a ideação não produz.
- Em
ideation.md, cite a sessão de origem no rodapé e mantenha o selo 🟡 normalmente. Nada do que veio da ideação sobe de confiança por ter sido reaproveitado.
Sem sessão de ideação concluída, siga o fluxo completo abaixo.
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.
- 9d ago First seen · 140 lines · 73 tokens per session scan A 2816e99309aa
reversa-ideator is a skill published in the GitHub repository sandeco/reversa (1,567 stars, last pushed today), licensed MIT. It adds 73 tokens to every session and 1,618 once invoked, about $0.0004 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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