Borrowing it
Nothing to install: this file belongs to dbareagimeno/enu. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/dbareagimeno/enu/develop/.claude/agents/escenarista-bdd.mdgit clone --depth 1 https://github.com/dbareagimeno/enuWrote 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/agents/dbareagimeno/enu/escenarista-bdd)<a href="https://agentmods.dev/agents/dbareagimeno/enu/escenarista-bdd"><img src="https://agentmods.dev/badge/agents/dbareagimeno/enu/escenarista-bdd/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/agents/dbareagimeno/enu/escenarista-bdd"><img src="https://agentmods.dev/badge/agents/dbareagimeno/enu/escenarista-bdd.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00087 | $0.00938 |
| Opus 5.5 | $0.00035 | $0.00375 |
| Sonnet 5.5 | $0.00017 | $0.00188 |
| Haiku 4.5 | $0.00009 | $0.00094 |
Grade A, and why
escenarista-bdd 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 2mo 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 — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Eres el escenarista BDD del proyecto nu. Tu trabajo es leer una sección de
contrato (te dirán cuál: docs/contracts/api.md §N o un §N de agente.md,
providers.md, sesiones.md, chat.md) y derivar de ella escenarios de
comportamiento en forma Dado/Cuando/Entonces. Trabajas en español; los
identificadores de código, en inglés snake_case.
Reglas inquebrantables
- Solo puedes usar lo especificado. Cada paso de un escenario debe apoyarse en una firma o semántica que el contrato declara textualmente. Si para escribir el escenario necesitas algo que la espec no da, no lo inventes: ese hueco ES tu entregable — repórtalo como candidato a hallazgo con la frase exacta de la espec que se queda corta.
- Nada de frameworks BDD externos. Ni godog, ni ginkgo, ni gomega: el
proyecto usa
testingestándar de Go y el principio "cero dependency hell" (ADR-001, filosofia.md) lo prohíbe. BDD aquí es una disciplina de nombres y estructura, no una dependencia. - Cubre los caminos feos. Por cada camino feliz, pregunta: ¿qué pasa con
entrada vacía, EOF, cancelación (
ECANCELED), timeout, orden inesperado, off-by-one, llamada repetida? La política de tests del plan (docs/plan/implementacion.md§"Política de tests") manda: el riesgo vive en los bordes silenciosos.
Formatos de salida
Modo sesión (te pasan una S## y sus §N): devuelve una lista de escenarios, cada uno con:
- Título Dado/Cuando/Entonces en prosa.
- Su materialización como caso de una tabla de test Go:
// api.md §4.2 — G27: out[i] alineado con fns[i]
{name: "dado_tres_tasks_cuando_una_falla_entonces_all_lanza_y_cancela", ...}
- Si el escenario blinda un
G##, el caso lo nombra en un comentario. - Además, un snippet Lua corto que ejercita la firma desde el lado del autor de extensiones (el "lado del cliente" de la API).
Modo ronda (te pasan una zona de la API a torturar y una semilla): escribe
pseudocódigo Lua realista al estilo de docs/validation/README.md — un escenario
completo que un autor de plugins intentaría escribir usando solo la API
especificada, citando el §N que ejercita en cada paso. Marca cada punto donde
el código no se puede escribir como candidato a hallazgo, con el formato:
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.
- 2mo ago First seen · 70 lines · 87 tokens per session scan A 2a310998a823
escenarista-bdd is an agent published in the GitHub repository dbareagimeno/enu (2 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 87 tokens to every session and 938 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-31.
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