What entity fields does this skill recommend for a Todo item?

It defines a standard structure including UUID, title, status (pending/completed/archived), priority, timestamps (created/updated/completed), and user ownership fields.

What are the valid state transitions for tasks?

It enforces specific flows: tasks can move between pending, completed, and archived, but archived tasks must return to pending before being marked as completed.

Does it provide guidance on API error handling?

Yes, it includes standardized response patterns for validation errors, conflict errors (409), and successful paginated results.

Does this skill handle concurrent modifications?

Yes, it provides implementation patterns for optimistic locking using the updated_at field to prevent lost updates in multi-user environments.

Todo App Domain Expert

Name: Todo App Domain Expert
Author: NaveedTechLab

byNaveedTechLab

0•

Productivity & Workflow

Provides authoritative guidance on data structures, business logic, and state management for task-based productivity applications.

The Todo Domain Expert skill empowers developers to build robust task management systems by enforcing industry-standard data models and validation logic. It provides comprehensive specifications for entity definitions, including immutable fields, state transitions, and multi-user isolation. Whether you are architecting a new todo application from scratch or auditing an existing backend, this skill ensures consistency, security, and scalability by handling complex edge cases like optimistic locking, concurrent access, and soft-delete workflows.

Key Features

01Pre-defined API response and validation error structures

02Standardized Todo entity modeling with UUIDs and timestamps

030 GitHub stars

04Optimistic locking patterns to prevent concurrent update conflicts

05Multi-user ownership and isolation rules

06Strict state transition logic (Pending, Completed, Archived)

Use Cases

01Designing a scalable backend API for a task management application

02Validating data models and CRUD operations for production readiness

03Implementing complex business rules for task states and archival

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add naveedtechlab/hackathon-2-todo todo-domain-expert

For use in Claude.ai and ChatGPT

Download Skill