Total 31,057 skills, Backend Development has 3052 skills
Showing 12 of 3052 skills
Bootstrap new Python projects: directory structure, pyproject.toml, pre-commit, uv sync. Use when creating a new project from scratch.
Build and traverse Nostr social graphs including follow lists (kind:3, NIP-02), relay list metadata (kind:10002, NIP-65), the outbox model for relay-aware event fetching, mute lists (kind:10000), and NIP-51 lists with public and private encrypted items. Use when implementing follow/unfollow, building feeds from followed users, discovering user relays, implementing the outbox model, creating mute or bookmark lists, or working with any NIP-51 list kind.
Build Nostr Data Vending Machine (DVM) services and clients using NIP-90. Use when implementing AI/compute service providers (kinds 5000-5999 job requests, 6000-6999 job results, kind 7000 feedback), creating DVM job request clients with payment handling, chaining DVM jobs, handling encrypted DVM params, or publishing NIP-89 service provider discovery events for DVMs.
Analyze and optimize Xano workspace performance. Use when the user wants to find slow endpoints, trace execution bottlenecks, deep-dive request stacks, or understand why their Xano API is slow. Also use when the user mentions "performance," "slow endpoint," "bottleneck," "stack trace," or "optimization."
Comprehensive Serverpod backend framework expertise for full-stack Dart/Flutter development. Use when building server-side applications with Serverpod, implementing backends for Flutter apps, working with type-safe ORMs, creating real-time features, managing authentication, or deploying production Dart servers. Covers installation, project setup, endpoints, database operations, authentication, real-time communication, file uploads, deployment, and testing.
Orchestrate large-scale TYPO3 code changes across multiple files in parallel. Migrations, bulk TCA modernization, Fluid template refactoring, hook-to-event conversions, namespace renames, and extension-wide upgrades. Decomposes work into independent units, executes them, and verifies with tests. Use when working with batch, migrate, bulk, mass refactor, convert all, upgrade all, rename across, find and replace, parallel, codemod, TYPO3 migration.
Guide for adding new wsh commands to Wave Terminal. Use when implementing new CLI commands, adding command-line functionality, or extending the wsh command interface.
Operate the joelclaw Telegram channel — primary mobile interface between Joel and the gateway. Covers grammy Bot API, text/media/reactions, inline buttons, callbacks, and streaming.
Apache Pekko + Scala 3によるCQRS/Event Sourcing実装ガイド。 PersistenceEffectorを用いた集約アクター、ドメインモデルとアクターの分離、 状態遷移の型安全な表現、イベント設計、Protocol Buffersシリアライズ、 ZIOベースのユースケース層、リードモデルアップデータの実装パターンを提供する。 対象言語: Scala 3限定。CQRS/Event Sourcingアーキテクチャが前提の場合のみ使用。 トリガー条件: 「Scala」かつ「CQRS」または「Event Sourcing」または「Pekko」が リクエストに含まれる場合のみ起動。Scala以外の言語やCQRS/ES以外のアーキテクチャでは このスキルを使用してはならない。 トリガー：「PekkoでCQRS/ESを実装したい」「Scalaで集約アクターを書きたい」 「PersistenceEffectorの使い方」「Pekkoのイベントソーシング」 「ScalaでCQRSのコマンド側を実装」「Pekkoで状態遷移を管理」 といったPekko + Scala + CQRS/ES実装リクエストで起動。 非トリガー：「CQRSのトレードオフ」「イベントソーシングとは」「JavaでCQRS」 「GoでEvent Sourcing」「CQRSの概念を教えて」など、Scala/Pekko以外や概念的な質問では 起動してはならない。
Rust programming expert for ownership, lifetimes, async/await, traits, and unsafe code
Use when performing parallel operations, rate limiting, or signaling between fibers in Effect-TS.
Use when building and maintaining APIs for applications and services.