Total 55,348 skills, Backend Development has 4384 skills
Showing 12 of 4384 skills
Python asyncio - Modern concurrent programming with async/await, event loops, tasks, coroutines, primitives, aiohttp, and FastAPI async patterns
Enterprise-grade architecture combining DDD bounded contexts with Feature-Sliced Design. Use for large-scale monorepos with multiple domains, microservices, event-driven communication, and scalable frontend modules.
Guidance for converting COBOL programs to modern languages (Python, Java, etc.) while preserving exact behavior and data format compatibility. This skill should be used when modernizing legacy COBOL applications, converting COBOL business logic to modern languages, or ensuring byte-for-byte output compatibility between COBOL and its replacement.
AWS Key Management Service (KMS) patterns using AWS SDK for Java 2.x. Use when creating/managing encryption keys, encrypting/decrypting data, generating data keys, digital signing, key rotation, or integrating encryption into Spring Boot applications.
Common Tokio patterns and idioms for async programming. Use when implementing worker pools, request-response patterns, pub/sub, timeouts, retries, or graceful shutdown.
Expert guidance on Hummingbird 2 web framework. Use when developers mention: (1) Hummingbird, HB, or Hummingbird 2, (2) Swift web server or HTTP server, (3) server-side Swift routing or middleware, (4) building REST APIs in Swift, (5) RequestContext or ChildRequestContext, (6) HummingbirdAuth or authentication middleware, (7) HummingbirdWebSocket, (8) HummingbirdFluent or database integration, (9) ResponseGenerator or EditedResponse.
KurocoのSmartyプラグイン・構文リファレンスおよびWebhook・バッチ処理・自動化のベストプラクティス。使用キーワード：「Smartyプラグイン」「Smarty関数」「Smarty修飾子」「Smarty構文」「テンプレート関数」「assign」「foreach」「if」「escape」「date_format」「truncate」「api_internal」「sendmail」「slack_post_message」「fileupload」「rcms_vue_component」「translate」「pager」「rcms_auth」「login」「logout」「ai_completion」「write_file」「put_file」「json_encode」「変数代入」「ループ処理」「条件分岐」「文字列操作」「日付フォーマット」「ファイル操作」「API呼び出し」「メール送信」「Slack通知」「Vue連携」「認証」「ページネーション」「$smarty変数」「セキュリティ設定」「IF_FUNCS」「MODIFIER_FUNCS」「capture」「literal」「section」「Webhook」「バッチ処理」「定期実行」「スケジュール実行」「cron」「15分毎」「1時間毎」「外部連携」「GitHub Actions」「repository_dispatch」「workflow_dispatch」「Slack通知」「slack_send」「Chatwork」「chatwork_send」「メール通知」「send_mail」「SendGrid」「sendgrid_send」「自動処理」「api_request」「外部API」「トリガー」「前処理」「後処理」「Function」「カスタム処理」「CSV出力」「topics変数」「inquiry変数」。Smartyテンプレートの構文・プラグイン、定期実行、外部通知、トリガー処理に関する質問で使用。
Pino high-performance JSON logger for Node.js with worker thread transports, child loggers, redaction, and framework integrations. Use when setting up structured logging, configuring log transports, adding request correlation IDs, redacting sensitive data, or integrating with Fastify, Hono, or Express. Use for pino, logging, structured-logs, request-id, correlation, redaction, transports, pino-http, pino-pretty.
ConvexFS (convex-fs) — path-based file storage and serving component for Convex powered by bunny.net CDN. Covers installation, setup, file upload/download flows, path management, blob lifecycle, atomic transactions (move/copy/delete), compare-and-swap, signed URLs, file expiration, garbage collection, auth for uploads/downloads, multiple filesystems, React integration, and production best practices. Use when working with ConvexFS, uploading files in Convex, serving files via CDN, managing file paths, building file storage features, or configuring bunny.net with Convex. Triggers on: convex-fs, ConvexFS, bunny.net, file upload, file storage convex, blob, commitFiles, registerRoutes, buildDownloadUrl, fs.stat, fs.list, fs.transact, fs.move, fs.copy, fs.delete, fs.writeFile, fs.getDownloadUrl, "how do I upload files in Convex", "serve files from Convex", "ConvexFS setup".
Invoked when user wants to implement specific state modules in TypeScript for Bun runtime environment in GraphiCode-managed projects. Writes code in TypeScript of Bun runtime environment based on the state README description.
Expert guidance for PHP 8+ development with SOLID principles, PSR standards, and modern best practices
Create FilamentPHP v4 dashboard widgets - stats overviews, charts, and custom components