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/modsnpx skills add FacturaScripts/fs-claude-plugin --skill modsgit clone --depth 1 https://github.com/FacturaScripts/fs-claude-pluginWrote 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/facturascripts/fs-claude-plugin/mods)<a href="https://agentmods.dev/skills/facturascripts/fs-claude-plugin/mods"><img src="https://agentmods.dev/badge/skills/facturascripts/fs-claude-plugin/mods.svg" alt="Measured on agentmods" 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 | $0.00041 | $0.02380 |
| Opus 5 | $0.00020 | $0.01190 |
| Sonnet 5 | $0.00008 | $0.00476 |
| Haiku 4.5 | $0.00004 | $0.00238 |
Grade A, and why
mods 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 3d 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 — 314 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Skill: Mods en FacturaScripts
Los mods permiten modificar el comportamiento visual y del controlador de los documentos de compra y venta: presupuestos, pedidos, albaranes y facturas. Se usan exclusivamente para la parte del controlador y la interfaz de pantalla (HTML renderizado dinámicamente vía AJAX).
Importante — no confundir con extensiones:
- Mods → modifican la parte del controlador (lo que se ve y procesa en pantalla en los documentos de compra/venta)
- Extensiones de modelos → modifican el modelo en todo el entorno (guardado, cálculos, relaciones, etc.)
Documentos afectados
| Tipo | Modelos de venta | Modelos de compra |
|---|---|---|
| Presupuestos | PresupuestoCliente | PresupuestoProveedor |
| Pedidos | PedidoCliente | PedidoProveedor |
| Albaranes | AlbaranCliente | AlbaranProveedor |
| Facturas | FacturaCliente | FacturaProveedor |
Tipos de mod disponibles
| Tipo | Interfaz a implementar | Registrar en |
|---|---|---|
| Cabecera ventas | SalesModInterface |
SalesHeaderHTML::addMod() |
| Pie ventas | SalesModInterface |
SalesFooterHTML::addMod() |
| Líneas ventas | SalesLineModInterface |
SalesLineHTML::addMod() |
| Cabecera compras | PurchasesModInterface |
PurchasesHeaderHTML::addMod() |
| Pie compras | PurchasesModInterface |
PurchasesFooterHTML::addMod() |
| Líneas compras | PurchasesLineModInterface |
PurchasesLineHTML::addMod() |
| Calculadora | CalculatorModInterface |
Calculator::addMod() |
Generar con fsmaker
fsmaker mod
fsmaker pregunta el tipo de mod (Sales, Purchases, Calculator, HTML Header, Line, Footer) y genera el archivo base en Mod/.
Estructura de archivos
Plugins/MiPlugin/
├── Init.php
└── Mod/
├── SalesMod.php # Cabecera/pie de ventas
├── SalesLineMod.php # Líneas de ventas
├── PurchasesMod.php # Cabecera/pie de compras
├── PurchasesLineMod.php # Líneas de compras
└── CalculatorMod.php # Modificar cálculos
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.
- 3d ago First seen · 314 lines · 41 tokens per session scan A 1d71d65e79f5
mods is a skill published in the GitHub repository FacturaScripts/fs-claude-plugin (8 stars, last pushed 2mo ago), licensed MIT. It adds 41 tokens to every session and 2,380 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 2026-08-31.
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