Total 52,201 skills, Backend Development has 4225 skills
Showing 12 of 4225 skills
Design structured logging systems with context propagation. Use to ensure Python applications are observable and logs are machine-readable.
Configure worker RBAC, filtered discovery, FORBIDDEN errors, registration hooks, auth functions, and safe browser/public worker-manager listeners in iii. Use when configuring permissions, tenant isolation, exposed functions, browser-safe worker access, or denied invocation behavior.
Help developers integrate Chainlink VRF into smart contracts. Use for consumer contract generation with VRFConsumerBaseV2Plus, subscription setup and funding (LINK or native), keyHash and gas lane selection, coordinator address lookup and debugging VRF integrations. Trigger on any mention of VRF, verifiable randomness, on-chain random number generation, requestRandomWords, fulfillRandomWords, VRF subscription, VRF coordinator, keyHash, or provably fair randomness in a smart contract, even if the user does not say 'VRF' explicitly.
Grafbase integration. Manage Projects. Use when the user wants to interact with Grafbase data.
Map relationships between bounded contexts and define integration contracts using DDD context mapping patterns.
Authoring & setting up Rust projects — idiomatic Rust (ownership/borrowing/cloning patterns, Result error handling, clippy config, static vs dynamic dispatch, performance, doc tests) plus project scaffolding (Cargo.toml, multi-crate workspaces, CI pipelines, rustfmt). Use when writing Rust code or starting/restructuring a Rust project.
Debugs a failing production call, reproduces the bug with Cekura evaluators, implements a fix, verifies it, runs regression tests, then raises a PR with evidence. Use when the user wants to fix a production call bug, investigate a failing prod call, reproduce and fix a production issue, run regression tests before a PR, or says things like "fix this prod call issue", "debug and fix call ID", "test my fix against prod scenarios", "reproduce this production bug", or "regression test before raising PR".
Interact with Jupiter Lend Protocol. Read-only SDK (@jup-ag/lend-read) for querying liquidity pools, lending markets (jlTokens), and vaults. Write SDK (@jup-ag/lend) for lending (deposit/withdraw) and vault operations (deposit collateral, borrow, repay, manage positions).
Catalyst Data Store — relational cloud database with ZCQL, CRUD operations, table permissions, and result pagination. Requires MCP connection — check for CatalystbyZoho_* tools before any operation. Trigger on 'Data Store', 'ZCQL', 'create table', 'executeZCQLQuery', 'table permissions', 'ROWID', 'boolean column', 'boolean always true', 'truthy string', 'boolean stored as string', or 'DataStore data types'. You MUST load this skill whenever writing code that reads or writes Data Store data — ZCQL result wrapping, boolean-as-string behavior, and App User permissions are non-obvious and cause silent bugs if skipped.
Use when designing URL structures, slug generation, SEO-friendly URLs, redirects, or localized URL patterns. Covers route configuration, URL rewriting, canonical URLs, and routing APIs for headless CMS.
Build AdonisJS 6 features from scratch through production. Full lifecycle - build, debug, test, optimize, refactor. Follows TypeScript-first, Lucid ORM, and AdonisJS conventions.
Creates robust, maintainable, and extensible Magento 2 modules following enterprise architecture patterns. Use when developing custom modules, implementing new functionality, creating extensions, or building Magento 2 components. Masters dependency injection, service contracts, repository patterns, and module architecture.