lumina: Skill for Claude Code

.agents/skills/lumina_json_serialization/SKILL.md

lumina_json_serialization is a skill for Claude Code, Codex from zwl467135974/lumina. It costs 45 tokens per session (1,458 once invoked), scanned A, original, Apache-2.0.

A set of rules for handling JSON in Lumina applications with Jackson, the Java library used to turn objects into JSON and read JSON back into objects. It covers annotations, dates, renamed fields, ignored fields, and null values.

In plain words
What is it for?
Creating data-transfer objects, configuring JSON output, formatting dates, renaming or hiding fields, omitting null values, and setting global serialization behavior.
Why use it?
It prevents different parts of the project from formatting JSON in incompatible ways. It also rules out Fastjson2 and keeps configuration consistent with Spring Boot's Jackson setup.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is zwl467135974/lumina's own configuration. It tells Claude Code and Codex how to work on lumina itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lumina configures →

Reuse

Borrowing it

Nothing to install: this file belongs to zwl467135974/lumina. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/zwl467135974/lumina/master/.agents/skills/lumina_json_serialization/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/zwl467135974/lumina

Made for: Claude Code, Codex.

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 lumina_json_serialization

README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/zwl467135974/lumina/lumina_json_serialization"><img src="https://agentmods.dev/badge/skills/zwl467135974/lumina/lumina_json_serialization.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,458 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00045 $0.01458
Opus 5.5 $0.00018 $0.00583
Sonnet 5.5 $0.00009 $0.00292
Haiku 4.5 $0.00005 $0.00146

Measured 2mo ago against content hash ecf3a8a13b6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

lumina_json_serialization 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 2mo 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.

.agents/skills/lumina_json_serialization/SKILL.md · 267 lines

How it starts

The opening of the file, as written. The whole thing — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Lumina JSON 序列化规范

功能概述

本技能包用于确保 Lumina 框架项目统一使用 Jackson 进行 JSON 序列化和反序列化,包括注解使用、日期格式化、空值处理等。

核心原则

  1. 统一使用 Jackson - 所有 JSON 序列化/反序列化使用 Jackson
  2. 禁止使用 Fastjson2 - 项目中不再使用 Fastjson2
  3. 统一配置 - 使用 Spring Boot 默认的 Jackson 配置
  4. 注解优先 - 使用 Jackson 注解进行字段控制

Jackson 基础使用

DTO 中的注解使用

@Data
public class AgentVO {
    
    private Long agentId;
    
    private String agentName;
    
    // 日期格式化
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private LocalDateTime createTime;
    
    // 忽略字段
    @JsonIgnore
    private String internalField;
    
    // 字段重命名
    @JsonProperty("agent_type")
    private AgentType agentType;
    
    // 空值处理
    @JsonInclude(JsonInclude.Include.NON_NULL)
    private String description;
}

全局配置

@Configuration
public class JacksonConfig {
    
    @Bean
    @Primary
    public ObjectMapper objectMapper() {
        ObjectMapper mapper = new ObjectMapper();
        
        // 日期格式
        mapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
        mapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));
        
        // 空值处理
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        
        // 忽略未知属性
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        
        // 美化输出(开发环境)
        mapper.enable(SerializationFeature.INDENT_OUTPUT);
        
        return mapper;
    }
}

常用注解

@JsonFormat

用于日期时间格式化:

@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
private LocalDateTime createTime;

@JsonFormat(pattern = "yyyy-MM-dd", timezone = "GMT+8")
private LocalDate createDate;

@JsonIgnore

忽略字段:

@JsonIgnore
private String password;

@JsonIgnore
private String internalField;

@JsonProperty

字段重命名:

@JsonProperty("agent_id")
private Long agentId;

@JsonProperty("agent_name")
private String agentName;

@JsonInclude

空值处理:

@JsonInclude(JsonInclude.Include.NON_NULL)
private String description;

@JsonInclude(JsonInclude.Include.NON_EMPTY)
private List<String> tags;

Read the full file on GitHub · 267 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. 2mo ago First seen · 267 lines · 45 tokens per session scan A ecf3a8a13b6a

Subscribe to this mod's changes

lumina_json_serialization is a skill published in the GitHub repository zwl467135974/lumina (91 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 45 tokens to every session and 1,458 once invoked, about $0.0002 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 2026-08-30.

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