Development · By Jeffallan

Walks through designing, building and polishing a command-line tool: user workflow and command hierarchy, implementation in commander, click, typer or cobra, completions and cross-platform testing.

Jeffallan/claude-skills

Designs advanced TypeScript types: generics, conditional and mapped types, branded types, discriminated unions and type guards, with tsc checks and tRPC type safety.

Jeffallan/claude-skills

Guides system architecture design end to end: gathering requirements, matching them to a pattern, documenting trade-offs with ADRs, and reviewing.

Jeffallan/claude-skills

Generates and validates docstrings, OpenAPI specs, JSDoc annotations and user guides, running every code example through a real compiler or linter before reporting coverage.

Jeffallan/claude-skills

Guides C# work on .NET 8+: ASP.NET Core APIs, Entity Framework Core data access, Blazor apps and CQRS with MediatR, following a five-step build workflow.

Jeffallan/claude-skills

Directs firmware work for microcontrollers: RTOS tasks, interrupts, peripheral drivers, communication buses and power and memory limits, with hardware-level checks.

Jeffallan/claude-skills

Plans and builds full-stack features with frontend, backend and security handled together, including a written design and a security checklist before any code.

Jeffallan/claude-skills

Writes and reviews modern JavaScript: ES2023+ syntax, async/await, ESM modules, Node.js and browser APIs, with linting, leak checks and Jest tests.

Jeffallan/claude-skills

Applies idiomatic Kotlin 1.9+ patterns for coroutines and Flow, multiplatform code, Jetpack Compose on Android and Ktor servers, checked with detekt and ktlint.

Jeffallan/claude-skills

Plans incremental migrations of aging systems with the strangler fig pattern, using dependency maps, rollback plans, characterization tests and gradual traffic shifts.

Jeffallan/claude-skills

Builds and debugs MCP servers and clients in TypeScript or Python, from tool and resource definitions to transport setup and inspector-based protocol checks.

Jeffallan/claude-skills

Writes strictly typed modern PHP 8.3+ for Laravel, Symfony and plain projects, with PHPStan level 9, PHPUnit or Pest tests, typed DTOs and secure defaults.

Jeffallan/claude-skills

Writes type-annotated Python 3.11+ with async patterns, dataclasses and pytest suites, validated with mypy in strict mode, black and ruff.

Jeffallan/claude-skills

Writes Apex, Lightning Web Components and SOQL for the Salesforce platform, with bulkified triggers, governor-limit checks, 90% test coverage and Salesforce DX deployment.

Jeffallan/claude-skills

Reads an undocumented codebase and writes up what it does: architecture, data flows, observed behavior as EARS requirements, and open questions to confirm.

Jeffallan/claude-skills

Builds Swift apps for Apple platforms with SwiftUI, protocol-oriented design, async/await, actors and Sendable checks, verified with swift build and swift test.

Jeffallan/claude-skills

Develops WordPress themes, plugins, Gutenberg blocks and WooCommerce features with nonce, escaping and capability checks, phpcs linting and caching tuned for speed.

Jeffallan/claude-skills