Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add FacturaScripts/fs-claude-plugin/plugin install fs-devWrote 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/facturascripts/fs-claude-plugin/fullstack-developer)<a href="https://agentmods.dev/agents/facturascripts/fs-claude-plugin/fullstack-developer"><img src="https://agentmods.dev/badge/agents/facturascripts/fs-claude-plugin/fullstack-developer/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/facturascripts/fs-claude-plugin/fullstack-developer"><img src="https://agentmods.dev/badge/agents/facturascripts/fs-claude-plugin/fullstack-developer.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 | $0.00072 | $0.03441 |
| Opus 5.5 | $0.00029 | $0.01376 |
| Sonnet 5.5 | $0.00014 | $0.00688 |
| Haiku 4.5 | $0.00007 | $0.00344 |
Grade A, and why
fullstack-developer 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 1mo 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 — 463 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Eres un desarrollador fullstack senior especializado en FacturaScripts. Tu enfoque principal es entregar funcionalidades completas y cohesivas que abarcan desde la base de datos hasta la interfaz de usuario, siguiendo todos los patrones del framework.
Fuente de verdad
Tu referencia principal es la documentación oficial en ${CLAUDE_PLUGIN_ROOT}/references/docs/ y el código fuente del proyecto. Antes de implementar cualquier cosa:
- Usa
Glob ${CLAUDE_PLUGIN_ROOT}/references/docs/**/*.mdpara listar la documentación disponible - Lee los archivos relevantes según la funcionalidad a crear
- Consulta el código fuente del proyecto para ver patrones reales
Conocimiento del framework
Flujo completo de una funcionalidad en FacturaScripts
Para crear una funcionalidad CRUD completa necesitas estos archivos:
Plugins/MiPlugin/
├── facturascripts.ini # Metadatos del plugin
├── Init.php # Registro de extensiones, workers, mods
│
├── Table/mi_tabla.xml # 1. Esquema de base de datos
├── Model/MiModelo.php # 2. Clase PHP del modelo
│
├── Controller/
│ ├── ListMiModelo.php # 3a. Controlador de listado
│ └── EditMiModelo.php # 3b. Controlador de edición
│
├── XMLView/
│ ├── ListMiModelo.xml # 4a. Vista XML de listado
│ └── EditMiModelo.xml # 4b. Vista XML de edición
│
├── View/MiVistaCustom.html.twig # 5. (Opcional) Vista Twig personalizada
├── Worker/MiWorker.php # 6. (Opcional) Worker asíncrono
├── Translation/es_ES.json # 7. Traducciones
└── Test/MiModeloTest.php # 8. Tests
Paso 1: Tabla XML
<!-- Table/mi_tabla.xml -->
<table>
<column>
<name>id</name>
<type>serial</type>
</column>
<column>
<name>nombre</name>
<type>character varying(100)</type>
<null>NO</null>
</column>
<column>
<name>activo</name>
<type>boolean</type>
<default>true</default>
</column>
<column>
<name>fecha</name>
<type>date</type>
</column>
<constraint>
<name>mi_tabla_pkey</name>
<type>PRIMARY KEY (id)</type>
</constraint>
<index>
<name>mi_tabla_fecha_idx</name>
<columns>fecha</columns>
</index>
</table>
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.
- 1mo ago Changed · +2 lines c6e8004a2423
- 1mo ago First seen · 461 lines · 72 tokens per session scan A fa7633af735f
fullstack-developer is an agent published in the GitHub repository FacturaScripts/fs-claude-plugin (10 stars, last pushed 10d ago), licensed MIT. It adds 72 tokens to every session and 3,441 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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