value

A configuration-injection pattern for supplying environment variables, system properties, or Sankhya parameters to Java components managed by Guice. Guice is a tool that creates objects and supplies their dependencies.

In plain words
What is it for?
Use it to add or review configurable settings, declare Sankhya parameters, choose immediate or lazy loading, set fallback values, and implement feature flags that can be switched on or off.
Why use it?
It removes manual configuration lookups and converts supplied values to the required Java type. It also supports defaults and delayed loading for optional or costly configuration values.

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

Made for: Claude Code, Codex.

Per session 197 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,702 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 $0.00197 $0.02702
Opus 5 $0.00098 $0.01351
Sonnet 5 $0.00039 $0.00540
Haiku 4.5 $0.00020 $0.00270

Measured yesterday against content hash d67e7edad872, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

value 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/value/SKILL.md · 233 lines

How it starts

The opening of the file, as written. The whole thing — 233 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Injecao de Valores (@Value) — Addon Studio 2.0

@Value injeta valores de configuracao (env vars, system properties, parametros Sankhya) diretamente em campos de componentes gerenciados pelo Guice. Conversao de tipo automatica. Thread-safe.


1. Atributos

Atributo Obrigatorio Descricao
value Nao* Nome da propriedade. Alternativa a param.
param Nao* Nome do parametro. Alternativa a value. Tem precedencia sobre value.
group Nao Grupo do parametro — exclusivo de SANKHYA_PARAM.
type Sim Fonte: ENV_VAR, SYSTEM_PROPERTY, SANKHYA_PARAM ou UNDEFINED.
defaultValue Sim Fallback quando a propriedade nao e encontrada. Nunca deixar vazio.
  • Ao menos um entre value ou param e obrigatorio.

2. Eager vs Lazy

Modo Sintaxe Resolucao Quando usar
Eager private Integer porta Na criacao do objeto Valor sempre necessario
Lazy private Provider<Integer> porta Na primeira chamada .get(), cacheado para sempre Valor opcional / custoso — config estavel
// Eager — resolvido na inicializacao
@Value(value = "server.port", type = ValueType.SYSTEM_PROPERTY, defaultValue = "8080")
private Integer serverPort;

// Lazy — resolvido so quando chamado, DEPOIS congela
@Value(param = "MAX_RETRIES", type = ValueType.SANKHYA_PARAM, defaultValue = "3")
private Provider<Integer> maxRetries;

public void executar() {
    int retries = maxRetries.get();  // resolve na primeira chamada; das seguintes vem do cache
    // ...
}

Read the full file on GitHub · 233 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. yesterday First seen · 233 lines · 197 tokens per session scan A d67e7edad872

Subscribe to this mod's changes

value is a skill published in the GitHub repository snk-devcenter/addon-studio (5 stars, last pushed yesterday), licensed MIT. It adds 197 tokens to every session and 2,702 once invoked, about $0.0010 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.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

babysit-pr

Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep…

openai/codex · 114 tokens

imagegen

Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output…

openai/codex · 113 tokens

cpu-profile-analysis

Analyze V8/Chrome CPU profiles (.cpuprofile) and DevTools trace files (Trace-.json). Use when: profiling performance, investigating slow functions, comparing code paths, finding bottlenecks, analyzing timeToRequest, understanding call trees from sampling profiler data, analyzing layout/paint/rendering, investigating…

microsoft/vscode · 71 tokens

next-cache-components-optimizer

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

vercel/next.js · 170 tokens