Total 44,103 skills, Backend Development has 3826 skills
Showing 12 of 3826 skills
Call Ethereum and EVM chains from IC canisters via the EVM RPC canister. Covers JSON-RPC calls, multi-provider consensus, ERC-20 reads, and sending pre-signed transactions. Use when calling Ethereum, Arbitrum, Base, Optimism, or any EVM chain from a canister. Do NOT use for generic HTTPS calls to non-EVM APIs — use https-outcalls instead.
Persist canister state across upgrades. Covers StableBTreeMap and MemoryManager in Rust, persistent actor in Motoko, and upgrade hook patterns. Use when dealing with canister upgrades, data persistence, data lost after upgrade, stable storage, StableBTreeMap, pre_upgrade traps, or heap vs stable memory. Do NOT use for inter-canister calls or access control — use multi-canister or canister-security instead.
Make HTTPS requests from canisters to external web APIs. Covers transform functions for consensus, cycle cost management, response size limits, and idempotency patterns. Use when a canister needs to call an external API, fetch data from the web, or make HTTP requests. Do NOT use for EVM/Ethereum calls — use evm-rpc instead.
Accept, send, and manage ckBTC (chain-key Bitcoin). Covers BTC deposit flow via minter, ckBTC transfers, withdrawal to BTC, subaccount derivation, and UTXO management. Use when integrating Bitcoin, ckBTC, BTC deposits, or BTC withdrawals in a canister. Do NOT use for plain token transfers without BTC minting/withdrawal — use icrc-ledger instead.
Provides gRPC usage guidelines, protobuf organization, and production-ready patterns for Golang microservices. Use when implementing, reviewing, or debugging gRPC servers/clients, writing proto files, setting up interceptors, handling gRPC errors with status codes, configuring TLS/mTLS, testing with bufconn, or working with streaming RPCs.
Golang performance optimization patterns and methodology - if X bottleneck, then apply Y. Covers allocation reduction, CPU efficiency, memory layout, GC tuning, pooling, caching, and hot-path optimization. Use when profiling or benchmarks have identified a bottleneck and you need the right optimization pattern to fix it. Also use when performing performance code review to suggest improvements or benchmarks that could help identify quick performance gains. Not for measurement methodology (see golang-benchmark skill) or debugging workflow (see golang-troubleshooting skill).
Agent skill for architecture - invoke with $agent-architecture
Expert in Django Python web development with best practices
Verification loop for Laravel projects: env checks, linting, static analysis, tests with coverage, security scans, and deployment readiness.
Generates Enonic XP controller files (TypeScript/JavaScript) and paired XML descriptors for pages, parts, and layouts. Covers lib-portal imports, HTTP handler exports, region definitions, Thymeleaf/Mustache rendering, and response processors. Use when scaffolding page controllers with regions, part controllers with config access, layout controllers with multi-region support, or response processors for Enonic XP sites. Do not use for content type schemas, headless Next.js/React frontends, GraphQL Guillotine queries, or non-Enonic web frameworks.
Enonic XP server-side JavaScript/TypeScript API reference for all /lib/xp/* libraries. Provides function signatures, parameters, return types, and usage examples for lib-content, lib-node, lib-auth, lib-portal, lib-context, lib-event, lib-task, lib-repo, lib-io, lib-mail, and lib-schema. Use when looking up Enonic XP library functions, parameter shapes, return types, or usage examples. Do not use for Guillotine GraphQL queries, content type schema definitions, Enonic CLI commands, or non-Enonic JavaScript APIs.
Sets up Enonic XP event listeners, webhook configurations, and external system integrations triggered by content lifecycle events. Covers lib-event listener registration, node event filtering, outbound webhook configuration via com.enonic.xp.webhooks.cfg, custom HTTP service controllers for inbound webhooks, task-based async processing with lib-task, and outbound HTTP calls with lib-httpClient. Use when listening for content publish/create/update/delete events, configuring outbound webhooks, building HTTP service endpoints for inbound webhooks, or triggering async processing on content changes. Do not use for content querying, frontend component development, non-Enonic event systems, or GitHub webhook configuration.