Total 56,172 skills, Backend Development has 4428 skills
Showing 12 of 4428 skills
A decision-support framework that evaluates systems, architectures, and strategies through the entropy (decay) vs negentropy (growth) lens, while surfacing tacit knowledge gaps. Use this skill whenever the user is making architecture decisions, evaluating system designs, reviewing technical approaches, choosing between options, auditing existing systems, or planning strategies. Also trigger when the user explicitly asks to "apply the negentropy lens", mentions "entropy", "negentropy", "tacit knowledge", "knowledge engine", or "flip the switch". Nudge activation when you detect the user is at a decision point — even if they haven't asked for this lens — by briefly noting the entropic/negentropic dimension before proceeding.
System design and architecture expert for creating scalable distributed systems. Covers system design interviews, architecture patterns, and real-world case studies like Netflix, Twitter, Uber. Use when designing systems, writing architecture docs, or preparing for system design interviews.
Go function design patterns including multiple return values, file organization, signature formatting, and Printf conventions. Use when writing functions, organizing Go source files, or formatting function signatures.
This skill should be used when the user asks to "set up Alembic migrations", "create a database migration", "run alembic upgrade", "configure alembic autogenerate", or needs guidance on SQLAlchemy schema versioning and migration best practices.
Build with Solana compressed NFTs (cNFTs) - Merkle trees, minting at scale, transfers, and metadata. Use when creating large NFT collections or reducing mint costs.
Playbook for selecting Solana RPC providers and building resilient client access (fallbacks, timeouts, rate limits, caching, cost control). Use when designing infra or debugging RPC issues.
MeshJS patterns: tx building, wallet connectors, script interactions. TypeScript/JavaScript Cardano development.
TON Blockchain — addresses, messages, TVM, cells, Blueprint, contracts, payments, API.
Form request validation and comprehensive validation testing. Use when working with validation rules, form requests, validation testing, or when user mentions validation, form requests, validation rules, conditional validation, validation testing.
Deterministic guide for designing and delivering new ASCN integrations and wrapping them into user plugins.
Best practices for building Harper applications, covering schema definition, automatic APIs, authentication, custom resources, and data handling. Triggers on tasks involving Harper database design, API implementation, and deployment.
Understand when to use npm package names vs control file names in pgpm modules. Use when creating .control files, writing SQL requires statements, running pgpm install, or referencing dependencies between modules.