Total 54,069 skills, Backend Development has 4327 skills
Showing 12 of 4327 skills
Interactive Brokers (IBKR) API integration for portfolio management, account queries, and trade execution across multiple account types (Roth IRA, personal brokerage, business). Use when the user mentions IBKR, Interactive Brokers, IB Gateway, TWS API, Client Portal API, brokerage API, portfolio positions, account balances, placing trades via API, multi-account trading, IRA trading restrictions, or wants to build/debug code that connects to Interactive Brokers. Also triggers on "ib_async", "ib_insync", "ibapi", or any IBKR endpoint reference.
Resilience patterns with Spring Cloud Circuit Breaker and Resilience4j. Covers circuit breaker, retry, rate limiter, bulkhead, and fallback patterns. USE WHEN: user mentions "circuit breaker", "resilience4j", "fallback", "retry pattern", "rate limiter", "bulkhead", "fault tolerance Spring" DO NOT USE FOR: basic HTTP errors - handle in code, Hystrix (deprecated) - use Resilience4j instead
Salesforce Industries Common Core (OmniStudio/Vlocity) Apex callable generation and review with 120-point scoring. TRIGGER when: user creates or reviews System.Callable classes, migrates `VlocityOpenInterface` / `VlocityOpenInterface2`, or builds Industries callable extensions used by OmniStudio, Integration Procedures, or DataRaptors. DO NOT TRIGGER when: generic Apex classes/triggers (use sf-apex), building Integration Procedures (use sf-industry-commoncore-integration-procedure), authoring OmniScripts (use sf-industry-commoncore-omniscript), configuring Data Mappers (use sf-industry-commoncore-datamapper), or analyzing namespace/dependency issues (use sf-industry-commoncore-omnistudio-analyze).
Comprehensive Rust training curriculum from Microsoft covering beginner to expert levels across 7 books with exercises, diagrams, and playgrounds.
Expert blueprint for low-level server access (RenderingServer, PhysicsServer2D/3D, NavigationServer) using RIDs for maximum performance. Bypasses scene tree overhead for procedural generation, particle systems, and voxel engines. Use when nodes are too slow OR managing thousands of objects. Keywords RenderingServer, PhysicsServer, NavigationServer, RID, canvas_item, body_create, low-level, performance.
Use when you need to verify Java performance optimizations by comparing profiling results before and after refactoring — including baseline validation, post-refactoring report generation, quantitative before/after metrics comparison, side-by-side flamegraph analysis, regression detection, or creating profiling-comparison-analysis and profiling-final-results documentation. Part of the skills-for-java project
Use when you need to use Spring Data JDBC with Java records — including entity design with records, repository pattern, immutable updates, aggregate relationships, custom queries, transaction management, and avoiding N+1 problems. Part of the skills-for-java project
Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset headers, content negotiation (JSON and vendor media types), ISO-8601 instants in DTOs, pagination/sorting/filtering, Bean Validation at the boundary, idempotency, ETag concurrency, HTTP caching, error handling, security, API documentation, controller advice, and problem details for errors. Part of the skills-for-java project
Manage call recordings, media storage, Dialogflow integration, and external connections for SIP trunking. This skill provides Python SDK examples.
Create and manage video rooms for real-time video communication and conferencing. This skill provides Ruby SDK examples.
Guides the multi-step Number Order workflow for purchasing phone numbers with KYC compliance via the Sinch Numbers API. Use when buying, ordering, provisioning, or activating Sinch numbers in countries that require KYC registration, regulatory compliance, or identity verification. Triggers on "number order", "KYC", "number registration", "phone number purchase", or "number provisioning".
Sends, receives, and tracks email via the Mailgun (Sinch) API. Use when the user wants to send email, manage domains, configure webhooks, query email events/logs, manage templates, handle suppressions (bounces, unsubscribes, complaints), set up inbound routes, manage mailing lists, DKIM keys, or IP warmup using Mailgun.