What is the primary benefit of parallel execution in Claude Code?

Parallel execution allows multiple parts of a project—like the UI and the API—to be built or fixed at the exact same time, significantly reducing the total time to completion.

Is Ultrawork suitable for small, single-file tasks?

While it can be used for any task, Ultrawork is specifically optimized for complex requests involving three or more files where the scope is large enough to benefit from parallelization.

How does Ultrawork handle file conflicts between agents?

The skill utilizes strict file-level ownership guidelines, ensuring that each concurrent agent is assigned specific, non-overlapping files to prevent merge conflicts.

How does the planning phase work?

For large requests, the skill triggers a rapid planning sub-agent (Nene) that breaks the task into units, assigns file ownership, and determines the optimal dependency order before execution begins.

Shinchan Ultrawork: Parallel Agent Orchestrator

Name: Shinchan Ultrawork: Parallel Agent Orchestrator
Author: seokan-jeong

byseokan-jeong

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Productivity & Workflow

Accelerates complex development tasks by orchestrating a team of specialized AI agents to work on multiple files in parallel.

Shinchan Ultrawork is a high-performance orchestration skill designed to maximize developer productivity within Claude Code. By leveraging a multi-agent system, it breaks down complex requests into independent task units and assigns them to specialized agents—such as dedicated personas for Frontend, Backend, DevOps, and Verification—working simultaneously. This parallel execution model is ideal for large-scale refactors, full-stack feature implementations, and multi-file migrations where sequential processing would be inefficient. The skill includes automated planning, conflict-aware file ownership management, and a final verification layer to ensure all changes meet project standards.

Key Features

01Domain-specific routing for Frontend, Backend, DevOps, and Analysis

026 GitHub stars

03Automated rapid planning for complex multi-file scopes

04Strict file-level ownership to prevent merge conflicts

05Integrated verification phase to validate all concurrent outputs

06Parallel execution of up to 4 concurrent specialized agents

Use Cases

01Executing widespread code refactors across large repositories in a fraction of the time

02Implementing a full-stack feature involving simultaneous frontend, backend, and database changes

03Rapidly prototyping complex systems that require immediate integration of multiple modules

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add seokan-jeong/team-shinchan ultrawork

For use in Claude.ai and ChatGPT

Download Skill