Total 50,405 skills, Backend Development has 4134 skills
Showing 12 of 4134 skills
MANDATORY recipe for every Caffeine build that posts to X (Twitter). The ONLY supported path is the `x-client` mops package with OAuth 2.0 PKCE. Hand-rolling `ic.http_request` or `icBooking.http_request` calls to `api.x.com/2/tweets`, `api.x.com/2/oauth2/token`, or any other X endpoint is a FORBIDDEN anti-pattern — it bypasses bearer auth, replication-cost safeguards, and `x-client`'s null-field handling. Load this skill whenever the user, spec, or any prior task mentions tweeting, live-tweeting, posting-to-X, posting-a-status, sharing-to-Twitter, or any equivalent phrasing — and BEFORE writing any code that touches `api.x.com`.
Admin-only paginated viewer for stable canister state. Use whenever the user asks for a viewer, dashboard, debug panel, or admin browse over backend data — users, items, orders, logs, or any stable Map/Set/Array/VarArray/List/Stack/Queue. Pre-installed in every Caffeine app via the `caffeineai-data-viewer` mops package; this skill explains what it does and how to keep using it correctly.
Trading API de Alpaca: órdenes, posiciones, cuenta. Paper trading y live trading de acciones, crypto y opciones.
Converts cuTile Python GPU kernels (@ct.kernel) to cuTile.jl Julia equivalents. Handles kernel syntax translation, 0-indexed to 1-indexed conversion, broadcasting differences, memory layout (row-major to column-major), type system mapping, and launch API differences. Use when converting, porting, or translating cuTile Python kernels to Julia cuTile.jl, or debugging/optimizing existing Julia cuTile translations.
Support for sending an email with a link the recipient can click to prove they own the email address.
REST API design patterns including resource naming, status codes, pagination, filtering, error responses, versioning, and rate limiting for production APIs.
Master index for Odoo 19 guides. This file provides a quick reference to find the appropriate detailed guide for each topic. Use this as an index to locate specific guides when working with Odoo 19 code.
Best Practices for Database and Table Name Specification Validation and Automatic Correction. Applicable to scenarios like "Does the database comply with specifications?", "table name specifications", "check table names", "optimize table names", "database naming", "check this file", "Is the table name compliant?"
SQLAlchemy ORM and Alembic migration best practices for building safe, performant database schemas. This skill should be used when writing, reviewing, or refactoring SQLAlchemy models, Alembic migrations, or database query patterns. Triggers on tasks involving SQLAlchemy ORM, Alembic migrations, database schema changes, or query optimization.
Implement authentication and authorization in Inertia Rails applications. Use when setting up login, sessions, permissions, and access control with Devise, has_secure_password, or other auth solutions.
Production email service with templates, queuing, and delivery tracking. Supports transactional emails, marketing campaigns, and webhooks.
System architecture and technical design specialist. 🚨 TIER 2 SKILL - ON-DEMAND ACTIVATION 🚨 Use when user requests involve: - System architecture design and planning - Technical specifications and ADRs - Technology evaluation and selection - Scalability and performance planning - Integration architecture and API design - English: "design system", "architecture", "ADR", "tech stack", "scalability" - Swedish: "arkitektur", "systemdesign", "teknikval", "skalbarhet" Architecture Specialist (British female voice) provides: - System design and architecture patterns - Architecture Decision Records (ADRs) - Technology evaluation and trade-off analysis - Cloud and microservices architecture - Integration patterns and API design User confirmation optional but recommended for major architectural decisions.