development

development is a skill for Claude Code from cass-2003/local-workflow-skill. It costs 41 tokens per session (389 once invoked), scanned A, a copy of development, MIT.

A programming-language guide covering Python, Go, Rust, TypeScript, Java, C++, and shell scripting. It explains common uses such as web development, automation, systems programming, and cloud services.

In plain words
What is it for?
Use it when planning software, comparing languages, or deciding which language fits a web service, script, cloud system, or low-level program.
Why use it?
It helps developers choose a suitable language for a type of project and understand the trade-offs between speed, safety, and development time.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it when planning software, comparing languages, or deciding which language fits a web service, script, cloud system, or low-level program.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cass-2003/local-workflow-skill/development
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.

Any agent
npx skills add cass-2003/local-workflow-skill --skill development
Clone the repo
git clone --depth 1 https://github.com/cass-2003/local-workflow-skill

Made for: Claude Code.

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 development

README.md
[![agentmods](https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/development/github.svg)](https://agentmods.dev/skills/cass-2003/local-workflow-skill/development)
Your own site
<a href="https://agentmods.dev/skills/cass-2003/local-workflow-skill/development"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/development/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 development

Your own site · 80×15
<a href="https://agentmods.dev/skills/cass-2003/local-workflow-skill/development"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 389 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 100% copy Near-identical to another mod 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 $0.00041 $0.00389
Opus 5.5 $0.00016 $0.00156
Sonnet 5.5 $0.00008 $0.00078
Haiku 4.5 $0.00004 $0.00039

Measured 1mo ago against content hash daf2142608fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

development 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.

Origin

This is a copy

100% identical to development — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/engineering-core/codex/domains/development/SKILL.md · 47 lines

What it actually says

符箓秘典 · 开发语言能力中枢

能力矩阵

Skill 语言 核心能力
python Python Web框架、数据处理、自动化
go Go 高并发、微服务、云原生
rust Rust 系统编程、内存安全、高性能
typescript TS/JS 前后端、Node.js、React/Vue
java Java 企业级、Spring、微服务
cpp C/C++ 系统底层、性能优化
shell Bash 脚本自动化、系统管理

语言选型指南

Web 后端:
  - 快速开发: Python (FastAPI/Django)
  - 高性能: Go (Gin/Echo)
  - 企业级: Java (Spring Boot)

Web 前端:
  - SPA: TypeScript + React/Vue
  - SSR: Next.js/Nuxt.js

系统编程:
  - 内存安全: Rust
  - 传统: C/C++

脚本自动化:
  - 通用: Python
  - 系统: Bash/Shell

安全工具:
  - 快速原型: Python
  - 高性能: Go/Rust
Files

What ships with it

7 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. 1mo ago First seen · 47 lines · 41 tokens per session scan A daf2142608fd

Subscribe to this mod's changes

development is a skill published in the GitHub repository cass-2003/local-workflow-skill (12 stars, last pushed 3mo ago), licensed MIT. It adds 41 tokens to every session and 389 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to development, differing in 0 lines, and is treated as a copy.

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