Total 50,306 skills, Backend Development has 4127 skills
Showing 12 of 4127 skills
Scaffold transactional and campaign email infrastructure end-to-end — provider setup, templates, user segmentation, and admin send UI. Use when the user wants to add email to their app — welcome emails, notifications, re-engagement, or bulk campaigns. Triggers on requests like "add email", "set up Resend", "email campaigns", "transactional email", "send emails to users", "welcome email", "notification emails", or any mention of email sending in an app context.
Guide for exposing PostHog product endpoints as MCP tools. Use when creating new or updating API endpoints, adding MCP tool definitions, scaffolding YAML configs, or writing serializers with good descriptions. Covers the full pipeline from Django serializer to generated TypeScript tool handler.
Upgrades Python pip/poetry/pipenv dependencies with breaking change handling
Go programming expert for goroutines, channels, interfaces, modules, and concurrency patterns
Evolve APIs safely using versioned DTOs/transformers, deprecations, and compatibility tests
Oracle PL/SQL procedural language. Covers stored procedures, functions, packages, triggers, cursors, collections, and exception handling. Use for Oracle database server-side programming. USE WHEN: user mentions "plsql", "Oracle procedures", "Oracle packages", "Oracle triggers", "BULK COLLECT", "FORALL", "DBMS_OUTPUT", "Oracle functions" DO NOT USE FOR: basic Oracle SQL - use `oracle` instead, PostgreSQL - use `plpgsql` instead, T-SQL - use `tsql` instead
Create production grade smart contracts. Use this skill when the user asks to write smart contracts, specially if they are going to be deployed to production (to a mainnet, or used in a mainnet script).
How to create and use Account (signer) in @aptos-labs/ts-sdk. Covers Account.generate(), fromPrivateKey(), fromDerivationPath(), Ed25519 vs SingleKey vs MultiKey vs Keyless, serialization (fromHex/toHex). Triggers on: 'Account.generate', 'Account.fromPrivateKey', 'Ed25519PrivateKey', 'SDK account', 'mnemonic', 'SingleKeyAccount', 'KeylessAccount'.
How to create and use AccountAddress in @aptos-labs/ts-sdk. Covers address format (AIP-40), from/fromString/fromStrict, special addresses, LONG vs SHORT form, and derived addresses (object, resource, token, user-derived). Triggers on: 'AccountAddress', 'AccountAddress.from', 'AIP-40', 'derived address', 'createObjectAddress', 'createResourceAddress', 'createTokenAddress'.
MySQL relational database. Covers queries, indexes, and optimization. Use when working with MySQL databases. USE WHEN: user mentions "mysql", "mariadb", asks about "AUTO_INCREMENT", "ON DUPLICATE KEY UPDATE", "GROUP_CONCAT", "mysql specific syntax" DO NOT USE FOR: PostgreSQL - use `postgresql` instead, MongoDB - use `mongodb` instead, Oracle - use `oracle` instead, SQL Server - use `sqlserver` instead
Public API theme management (X-API-KEY). List, get, generate, and apply themes. Types follow PublicThemeController (/api/v2/themes).
Public API project file management (X-API-KEY). Prepare upload/update, confirm, get file, download URL, delete. Types follow PublicApiProjectFileController (/api/v2/projects/{projectId}/...).