entity

A guide to Java classes that represent Sankhya database tables and their relationships. It covers fields, keys, joins, and data types while keeping display and behaviour settings in separate XML metadata.

In plain words
What is it for?
Use it to create or refactor JapeEntity mappings, including simple or combined keys, native tables, relationships, and fields such as numbers, text, dates, and booleans.
Why use it?
It helps keep database mapping correct and prevents UI settings or generated-key rules from being placed in the wrong layer.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/snk-devcenter/addon-studio/entity
Any agent
npx skills add snk-devcenter/addon-studio --skill entity
Clone the repo
git clone --depth 1 https://github.com/snk-devcenter/addon-studio

Made for: Claude Code, Codex.

Per session 273 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,776 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00273 $0.05776
Opus 5 $0.00137 $0.02888
Sonnet 5 $0.00055 $0.01155
Haiku 4.5 $0.00027 $0.00578

Measured yesterday against content hash 4adbafc0743e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

entity 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 yesterday.

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.

plugins/addon-studio/skills/entity/SKILL.md · 484 lines

How it starts

The opening of the file, as written. The whole thing — 484 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Entidade Java (@JapeEntity) — Addon Studio 2.0

Entidade Java = representação domínio de tabela banco. Limpa — contém só mapeamento estrutural mínimo. Metadata UI, tipos, descrições, comportamento fica no Dicionário de Dados (XMLs em datadictionary/).

Referência complementar: consulte data-dictionary para criar XML correspondente à entidade.


1. Regras Fundamentais

Regra Detalhe
@Column só tem name @Column(name = "COLUNA") — nenhum outro atributo.
@JoinColumn só tem name e referencedColumnName @JoinColumn(name = "...", referencedColumnName = "...")
@JapeEntity tem entity, table, isNativeTable e isNativeInstance Addon puro: @JapeEntity(entity = "...", table = "..."). Tabela nativa Sankhya: adicionar isNativeTable = true. Instância também nativa: adicionar isNativeInstance = true. Veja seção 1.2.
Sem @Expression Expressões ficam no XML (<expression>).
Sem @GeneratedValue Sequência fica no XML (sequenceType/sequenceField) — default "A", PK automática.
Sem @Option / @Property Opções ficam no XML (<fieldOptions>).
Lombok obrigatório @Data, @NoArgsConstructor, @AllArgsConstructor.
Convencao de nomenclatura no entity/table Veja secao 1.1.

1.1 Convencao de nomes (parametrizada por projeto)

Padrao parametrizado por <PRX> (prefixo) + <MOD3> (modulo). Ver database secao "Descobrir convencao do projeto" antes de criar.

Atributo Padrao Exemplo (PRX=TDC, MOD3=XYZ)
entity <Prx><Mod><Ctx> (PascalCase) TdcXyzCabecalho
table <PRX><MOD3><CTX> (UPPER) TDCXYZCAB

Read the full file on GitHub · 484 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday First seen · 484 lines · 273 tokens per session scan A 4adbafc0743e

Subscribe to this mod's changes

entity is a skill published in the GitHub repository snk-devcenter/addon-studio (5 stars, last pushed yesterday), licensed MIT. It adds 273 tokens to every session and 5,776 once invoked, about $0.0014 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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