Total 50,553 skills, Backend Development has 4139 skills
Showing 12 of 4139 skills
Zig compiler skill for systems programming. Use when compiling Zig programs, selecting optimization modes, using zig cc as a C compiler, reading Zig error messages, or understanding Zig's compilation model. Activates on queries about zig build-exe, zig build-lib, optimize modes, ReleaseSafe, ReleaseFast, ReleaseSmall, zig cc, zig ast-check, or Zig compilation errors.
Dynamic linking skill for Linux/ELF shared libraries. Use when debugging library loading failures, configuring RPATH vs RUNPATH, understanding soname versioning, using dlopen/dlsym for plugin systems, LD_PRELOAD interposition, or controlling symbol visibility. Activates on queries about shared libraries, dlopen, LD_LIBRARY_PATH, RPATH, soname, LD_PRELOAD, symbol visibility, or "cannot open shared object file" errors.
This skill should be used when implementing Convex mutation functions. It provides comprehensive guidelines for defining, registering, calling, and scheduling mutations, including database operations, transactions, and scheduled job patterns.
Use when building Cardano transactions with MeshJS SDK. Covers MeshTxBuilder API for sending ADA, minting NFTs and tokens, spending from Plutus scripts, staking, governance voting, DRep registration, and multi-sig patterns. Includes correct method ordering, coin selection, fee calculation, and troubleshooting common Cardano transaction errors.
Comprehensive guide to the Compact programming language for writing privacy-preserving smart contracts on Midnight Network. Use when users need to write Compact smart contracts with zero-knowledge proofs, understand Compact syntax and language features, implement ZK circuit patterns and optimizations, generate contract boilerplate and project scaffolding, learn best practices for secure contract development, access Compact standard library functions, and compile and test Compact contracts.
Guide for building SumUp payment integrations that cover both terminal (card-present) and online (card-not-present) checkout flows using SumUp SDKs and APIs. Use when implementing or debugging SumUp checkout creation, payment processing, reader pairing, Card Widget integrations, Cloud API reader checkouts, or authorization setup with API keys/OAuth and Affiliate Keys.
Check Apideck connector API coverage before building integrations. Use when determining which operations a connector supports, comparing connector capabilities, or diagnosing why an API call fails with a specific connector. Teaches agents to query the Connector API for real-time coverage data.
Builds .NET 10 file-based C# apps. Directives, CLI commands, csproj migration.
Refactors legacy Java code to modern patterns and best practices. Use when modernizing old Java code, converting to Java 8+ features, refactoring legacy applications, applying design patterns, improving error handling, extracting methods/classes, converting to streams/Optional/records, or migrating from old Java versions. Works with pre-Java 8 code, procedural Java, legacy frameworks, and outdated patterns.
Receive and verify Chargebee webhooks. Use when setting up Chargebee webhook handlers, debugging Basic Auth verification, or handling subscription billing events.
TON Blockchain — addresses, messages, TVM, cells, Blueprint, contracts, payments, API.
Tact language for TON blockchain smart contracts — types, contracts, messages, send/receive, stdlib, and security.