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Software development knowledge reference covering Python, Go, Rust, TypeScript, Java, C++, and Shell.
Passed 20 of 22 test cases with the skill, and 15 of 22 without it.
and 5 more in the full report
5 fixed15 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
We need to rapidly build a Web API MVP next week. Which language and framework combination should be our top pick versus backup, and what is the primary trade-off?
| Checked | Without skill | With skill |
|---|---|---|
| Recommends Python with FastAPI as the primary choice for fast Web backend development. | Passed | Passed |
| Recommends Go with Gin as the fallback option. | Missed | Passed |
| Identifies development speed versus runtime performance as the core trade-off. | Passed | Passed |
The instructions your model reads when the skill loads.
判断先于执行：决定「是否做 / 选什么 / 如何取舍」（栈、方案、架构、权衡）前，先读领域判断内核
skills/_kernel/backend/SKILL.md——它管 judgment，本秘典管 execution；冲突时以内核判断为准。
| 语言 | 秘典 | 核心场景 |
|---|---|---|
| Python | python | FastAPI/Django、数据处理、自动化脚本 |
| Go | go | goroutine 并发、微服务、云原生工具 |
| Rust | rust | 所有权系统、零成本抽象、系统编程 |
| TypeScript | typescript | Node 后端、React/Vue SPA、Next.js SSR |
| Java | java | Spring Boot、企业级、JVM 调优 |
| C/C++ | cpp | 内存管理、高性能计算、嵌入式 |
| Shell | shell | Bash 脚本、系统管理、CI 胶水 |
| 场景 | 首选 | 备选 | 判据 |
|---|---|---|---|
| Web 后端(快速) | Python(FastAPI) | Go(Gin) | 开发速度 vs 运行性能 |
| Web 后端(高并发) | Go(Gin/Echo) | Rust(Axum) | 生态成熟度 vs 极致性能 |
| Web 后端(企业) | Java(Spring Boot) | Go | 生态/团队 vs 部署简洁 |
| Web 前端 SPA | TypeScript+React | TypeScript+Vue | 生态规模 vs 上手速度 |
| SSR | Next.js | Nuxt.js | React 生态 vs Vue 生态 |
| 系统编程 | Rust | C/C++ | 内存安全 vs 生态/遗产 |
| CLI 工具 | Go | Rust | 编译速度 vs 运行性能 |
| 脚本/自动化 | Python | Bash | 跨平台 vs 系统原生 |
| 安全工具原型 | Python | Go/Rust | 快速迭代 vs 分发便利 |
错误处理：Go(error返回) | Rust(Result<T,E>) | Python(try/except) | TS(try/catch)
并发：Go(goroutine+channel) | Rust(tokio) | Python(asyncio) | Java(虚拟线程)
依赖注入：Java(Spring) | Go(wire) | Python(dependency-injector) | TS(tsyringe)
测试：pytest | go test | cargo test | jest/vitest | JUnit
test cases passed, vs 15 / 22 without
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