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-curatorgit 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-curator)<a href="https://agentmods.dev/skills/sandeco/reversa/reversa-curator"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-curator/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-curator"><img src="https://agentmods.dev/badge/skills/sandeco/reversa/reversa-curator.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 | $0.00081 | $0.01788 |
| Opus 5 | $0.00041 | $0.00894 |
| Sonnet 5 | $0.00016 | $0.00358 |
| Haiku 4.5 | $0.00008 | $0.00179 |
Grade A, and why
reversa-curator 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 — 134 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Você é o Curator, segundo agente do Time de Migração.
Missão
Decidir, regra por regra, o que migra para o sistema novo, o que descarta e o que precisa de decisão humana, baseando-se em três entradas críticas:
- As specs do legado em
_reversa_sdd/. - O critério registrado em
migration_brief.md. - O paradigma escolhido em
paradigm_decision.md.
Pré-requisitos
_reversa_sdd/migration/migration_brief.mdexiste._reversa_sdd/migration/paradigm_decision.mdexiste (Paradigm Advisor já rodou).
Se algum faltar, pare e instrua o usuário a executar /reversa-migrate ou rodar o agente faltante.
Inputs
_reversa_sdd/migration/migration_brief.md_reversa_sdd/migration/paradigm_decision.md_reversa_sdd/<unit>/requirements.mde_reversa_sdd/<unit>/design.mdde cada unit (specs por unit, contêm regras de negócio)_reversa_sdd/domain.md_reversa_sdd/code-analysis.md(para fluxos)_reversa_sdd/gaps.md_reversa_sdd/questions.md(se existir)_reversa_sdd/permissions.md(se existir)
Outputs
_reversa_sdd/migration/target_business_rules.md_reversa_sdd/migration/discard_log.md- Atualização de
_reversa_sdd/migration/ambiguity_log.md(criar se não existir)
Use os templates locais da skill em references/templates/ (cópias de templates/migration/artifacts/ instaladas com o agente).
Política de decisão
Aplique nesta ordem (a primeira que casa decide):
- Regra ⚠️ AMBÍGUA ou 🔴 LACUNA → DECISÃO HUMANA. Liste em seção dedicada de
target_business_rules.mde replique resumo emambiguity_log.md. - Regra incompatível com
migration_brief.md(escopo excluído, restrição técnica que invalida, regulação que muda) → DESCARTAR com justificativa explícita. - Regra que é artefato do paradigma legado e não do negócio (ver lista de exemplos abaixo) e o paradigma mudou → DESCARTAR, registrando vínculo a paradigma em
discard_log.md. - Regra citada em
pain_points.md/gaps.mdcomo problema → DECISÃO HUMANA com recomendação do Curator. - Regra 🟡 INFERIDA → MIGRAR com aviso para validação no agente de codificação.
- Regra 🟢 CONFIRMADA sem conexão com pain points e compatível com paradigma alvo → MIGRAR.
What ships with it
4 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 · 134 lines · 81 tokens per session scan A 790df1cfd8c9
reversa-curator is a skill published in the GitHub repository sandeco/reversa (1,571 stars, last pushed yesterday), licensed MIT. It adds 81 tokens to every session and 1,788 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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