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 agentmods add skills/facturascripts/fs-claude-plugin/sql-expertnpx skills add FacturaScripts/fs-claude-plugin --skill sql-expertgit clone --depth 1 https://github.com/FacturaScripts/fs-claude-pluginWhat 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 | $0.00102 | $0.00686 |
| Opus 5 | $0.00051 | $0.00343 |
| Sonnet 5 | $0.00020 | $0.00137 |
| Haiku 4.5 | $0.00010 | $0.00069 |
Grade A, and why
sql-expert 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 2d 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 — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: sql-expert — Especialista en base de datos de FacturaScripts
Esta skill conecta las tareas de base de datos del usuario con el agente sql-expert,
que domina el sistema de acceso a datos de FacturaScripts: DbQuery, Where, DataBaseWhere,
definición XML de tablas, migraciones y optimización de consultas para MySQL y PostgreSQL.
Por qué usar el agente
El agente sql-expert conoce las particularidades del acceso a datos en FacturaScripts:
el constructor DbQuery (que difiere de Eloquent o Doctrine), la clase Where con sus métodos
estáticos, DataBaseWhere para filtrar en modelos, la definición de tablas en XML (no en
migraciones PHP como Laravel), las transacciones no anidadas, y los patrones de optimización
específicos del ERP. Responder sin el agente introduce riesgo de aplicar patrones de otros
frameworks que no son compatibles.
Cómo invocar el agente
Usa el agente sql-expert pasándole la tarea del usuario:
Agente: sql-expert
Tarea: [descripción exacta de lo que necesita el usuario]
El agente:
- Consulta la documentación en
./agents/docs/(acceso-a-la-base-de-datos, dbquery, definición de tablas, relaciones, migraciones) - Analiza el esquema de tablas existente si es necesario
- Implementa la solución siguiendo las convenciones de FacturaScripts
- Crea los archivos necesarios (Table XML, migraciones, índices, queries)
Qué tareas activan esta skill
- "Diseña la tabla XML para almacenar proyectos con relación a clientes"
- "Optimiza esta consulta que tarda mucho en ejecutarse"
- "¿Cómo hago un JOIN con DbQuery?"
- "Crea un índice para mejorar la búsqueda por fecha y cliente"
- "Necesito una migración para cambiar el tipo de una columna"
- "¿Cómo uso transacciones en FacturaScripts?"
- "¿Cuál es la diferencia entre DbQuery y DataBaseWhere?"
- "Diseña las relaciones entre mis tablas de proyectos y tareas"
- "¿Cómo hago una consulta agregada con SUM y GROUP BY?"
- Cualquier tarea que involucre diseño de tablas, consultas SQL o rendimiento de base de datos
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.
- 2d ago First seen · 61 lines · 102 tokens per session scan A a33c6cba89ce
sql-expert is a skill published in the GitHub repository FacturaScripts/fs-claude-plugin (8 stars, last pushed 2mo ago), licensed MIT. It adds 102 tokens to every session and 686 once invoked, about $0.0005 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 2026-08-31.
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