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SingleFlight macOS 奇怪的安全扫码机制 Agentic Design Patterns 你不知道的 Claude Code：架构、治理与工程实践 你不知道的 Agent：原理、架构与工程实践 rtk: CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies difftastic: a structural diff that understands syntax I Ditched Elasticsearch for Meilisearch. Here’s What Nobody Tells You. 策展島嶼的深度敘事: https://github.com/frank890417/taiwan-md Linux 中网络包的一生 Gitingest: Turn any Git repository into a prompt-friendly text ingest for LLMs. 7 More Common Mistakes in Architecture Diagrams Use Cases Superpowers: Superpowers is a complete software development workflow for your coding agents, built on top of a set of composable “skills” and some initial instructions that make sure your agent uses them. everything-claude-code: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. Agency Agents: A complete AI agency at your fingertips - From frontend wizards to Reddit community ninjas, from whimsy injectors to reality checkers. Each agent is a specialized expert with personality, processes, and proven deliverables. MiroFish: A Simple and Universal Swarm Intelligence Engine, Predicting Anything. Lightpanda Browser: the headless browser designed for AI and automation Anatomy of the .claude/ Folder Cocoa-Way: Native macOS Wayland Compositor written in Rust using Smithay. Experience seamless Linux app streaming on macOS without XQuartz. Pretext: Fast, accurate & comprehensive text measurement & layout Ghostmoon.app: A Swiss Army Knife for your macOS menu bar CodingFont: A game to help you pick a coding font The Git Commands I Run Before Reading Any Code Winhance: Application designed to optimize, customize and enhance your Windows experience. Native Instant Space Switching on MacOS FluidCAD: Write CAD models in JavaScript. See the result in real time. Awesome DESIGN.md: Copy a DESIGN.md into your project, tell your AI agent “build me a page that looks like this” and get pixel-perfect UI that actually matches. SingleFlight package analyzer import ( "context" "sync" "golang.org/x/sync/singleflight" "github.com/nathan/stock_bot/internal/storage" ) type AnalysisService struct { genai *GenAIClient d1Client *storage.D1Client stockCache map[string]*StockAnalysisResult mu sync.RWMutex sf singleflight.Group } func (s *AnalysisService) analyzeStock(ctx context.Context, code, name string) (*StockAnalysisResult, error) { // 1. 第一層防護：檢查記憶體快取 (L1 Cache) s.mu.RLock() if result, ok := s.stockCache[code]; ok { s.mu.RUnlock() return result, nil } s.mu.RUnlock() // 2. 第二層防護：Singleflight (請求合併) key := "stock:" + code v, err, _ := s.sf.Do(key, func() (interface{}, error) { // 3. 執行昂貴的邏輯 (DB + Gemini API) result, err := s.doAnalyzeStock(ctx, code, name) if err != nil { return nil, err } // 4. 寫入快取 (務必在 singleflight 內部完成，防止下一波瞬間擊穿) s.mu.Lock() s.stockCache[code] = result s.mu.Unlock() return result, nil }) if err != nil { return nil, err } return v.(*StockAnalysisResult), nil } func (s *AnalysisService) doAnalyzeStock(ctx context.Context, code, name string) (*StockAnalysisResult, error) { // 建立一個子 Context 用於內部的多個非同步任務 g, ctx := errgroup.WithContext(ctx) var dbData string var aiResult string // 任務 1：查資料庫 g.Go(func() error { // 隨時檢查 Context 是否已取消 select { case <-ctx.Done(): return ctx.Err() default: // 模擬資料庫查詢 dbData = "Historical Data" return nil } }) // 任務 2：呼叫 Gemini API g.Go(func() error { // 將 ctx 傳入 API 客戶端，讓它能跟隨整體的超時控制 res, err := s.genai.Generate(ctx, "Analyze this: "+code) if err != nil { return err } aiResult = res return nil }) // 等待所有任務完成或其中一個出錯 if err := g.Wait(); err != nil { return nil, err } return &StockAnalysisResult{Data: dbData, Analysis: aiResult}, nil } func (s *AnalysisService) analyzeStockWithMetrics(ctx context.Context, code string) (*StockAnalysisResult, error) { key := "stock:" + code v, err, shared := s.sf.Do(key, func() (interface{}, error) { return s.doAnalyzeStock(ctx, code, "Name") }) // 紀錄監控指標：分辨是「原始呼叫」還是「共享結果」 status := "original" if shared { status = "shared" } s.sfCounter.Add(ctx, 1, metric.WithAttributes( attribute.String("stock_code", code), attribute.String("type", status), )) if err != nil { return nil, err } return v.(*StockAnalysisResult), nil } macOS 奇怪的安全扫码机制 # 查看最近的 syspolicyd 扫描记录 log show --predicate 'subsystem == "com.apple.syspolicy.exec"' --last 5m --style compact | grep performScan System Settings → Privacy & Security → Full Disk Access，给 VS Code 完全磁盘访问权限有效
