Total 53,077 skills, Backend Development has 4296 skills
Showing 12 of 4296 skills
Upgrade Cairo smart contracts using OpenZeppelin's UpgradeableComponent on Starknet. Use when users need to: (1) make Cairo contracts upgradeable via replace_class_syscall, (2) integrate the OpenZeppelin UpgradeableComponent, (3) understand Starknet's class-based upgrade model vs EVM proxy patterns, (4) ensure storage compatibility across upgrades, (5) guard upgrade functions with access control, or (6) test upgrade paths for Cairo contracts.
Go backend development best practices for microservices with clean architecture, observability, and production-ready patterns
Bootstrap a new SaaS from the SaaS Seeder Template: setup database, configure environment, create super admin user, and verify three-tier panel structure. Use when initializing a new multi-tenant SaaS project from this template.
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.
MongoDB transaction correctness, consistency, and retry safety. Use when implementing multi-document writes, debugging transaction failures, choosing readConcern/writeConcern, handling TransientTransactionError or UnknownTransactionCommitResult, or deciding when transactions are required. Triggers on "transaction", "withTransaction", "session", "read concern", "write concern", "causal consistency", "snapshot", "retry commit", "ACID", "TransientTransactionError", and "UnknownTransactionCommitResult".
Public API theme management (X-API-KEY). List, get, generate, and apply themes. Types follow PublicThemeController (/api/v2/themes).
Advanced database design and administration for PostgreSQL, MongoDB, and Redis. Use when designing schemas, optimizing queries, managing database performance, or implementing data patterns.
Use when choosing a logging approach, configuring slog, writing structured log statements, or deciding log levels in Go. Also use when setting up production logging, adding request-scoped context to logs, or migrating from log to slog, even if the user doesn't explicitly mention logging. Does not cover error handling strategy (see go-error-handling).
Embedded Rust skill for bare-metal microcontroller development. Use when using probe-rs or cargo-embed for flashing and debugging, setting up defmt logging, using the RTIC framework, configuring cortex-m-rt startup, writing no_std + no_main firmware, or choosing between panic-halt and panic-semihosting. Activates on queries about embedded Rust, probe-rs, cargo-embed, defmt, RTIC, cortex-m-rt, no_std embedded, or panic handling in embedded Rust.
Core dump analysis skill for production crash triage. Use when loading core files in GDB or LLDB, enabling core dump generation on Linux/macOS, mapping symbols with debuginfo or debuginfod, or extracting backtraces from crashes without re-running the program. Activates on queries about core files, ulimit, coredumpctl, debuginfod, crash triage, or analyzing segfaults from production binaries.
Manage account balance, payments, invoices, webhooks, and view audit logs and detail records. This skill provides JavaScript SDK examples.
Implements RESTful API design with versioning and request specs. Use when building APIs, adding API endpoints, versioning APIs, or when user mentions REST, JSON API, or API design. WHEN NOT: Internal-only endpoints, HTML views, Turbo Stream responses, or APIs without external consumers.