fullstack-developer

fullstack-developer is an agent for Claude Code from FacturaScripts/fs-claude-plugin. It costs 72 tokens per session (3,441 once invoked), scanned A, original, MIT.

A coding agent for FacturaScripts, a PHP business-management framework, that helps build features across the database, application logic, interface, and tests.

In plain words
What is it for?
Use it to create complete CRUD features or other end-to-end FacturaScripts functionality, from database tables and PHP models to screens, templates, extensions, setup code, and tests.
Why use it?
It removes the need to coordinate every layer of a complete feature yourself while following the project's documented patterns.

Agent for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: model in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the fs-dev plugin — 29 skills, 12 agents, 3 hooks shipped together

Good fit Use it to create complete CRUD features or other end-to-end FacturaScripts functionality, from database tables and PHP models to screens, templates, extensions, setup code, and tests.

Compare 6 agents from other repositories ↓
Install

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.

Claude Code
/plugin marketplace add FacturaScripts/fs-claude-plugin
Claude Code
/plugin install fs-dev

Made for: Claude Code.

Or install fs-dev, the plugin that ships this one along with the rest of its 29 skills, 12 agents, 3 hooks.

Wrote 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.

agentmods badge for fullstack-developer

README.md
[![agentmods](https://agentmods.dev/badge/agents/facturascripts/fs-claude-plugin/fullstack-developer/github.svg)](https://agentmods.dev/agents/facturascripts/fs-claude-plugin/fullstack-developer)
Your own site
<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.

agentmods 80×15 button for fullstack-developer

Your own site · 80×15
<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>
Per session 72 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,441 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 1mo ago against content hash c6e8004a2423, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

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.

fs-dev/agents/fullstack-developer.md · 463 lines

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:

  1. Usa Glob ${CLAUDE_PLUGIN_ROOT}/references/docs/**/*.md para listar la documentación disponible
  2. Lee los archivos relevantes según la funcionalidad a crear
  3. 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>

Read the full file on GitHub · 463 lines

Changes

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.

  1. 1mo ago Changed · +2 lines c6e8004a2423
  2. 1mo ago First seen · 461 lines · 72 tokens per session scan A fa7633af735f

Subscribe to this mod's changes

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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