How do I specify which tasks Ultrawork should complete?

You can use natural language to define a range from your Plans.md file, such as '/ultrawork finish from login to dashboard' or simply '/ultrawork do everything'.

What is the main difference between /work and /ultrawork?

While /work typically handles individual tasks or small increments, /ultrawork autonomously iterates through an entire range of tasks defined in Plans.md until completion, including mandatory builds and tests.

What are the completion requirements for an Ultrawork session?

A session is considered complete only when all tasks are marked done, the project builds successfully, all tests pass, and it receives an approval from the harness-review tool.

When should I use Ultrawork instead of standard Claude commands?

Use it for large-scale, multi-task implementations where you want the AI to manage the debugging and verification cycle independently without requiring manual intervention for every step.

Does Ultrawork learn from its mistakes?

Yes, it features a self-learning mechanism that analyzes data from previous failures to improve its implementation logic in subsequent iterations.

Ultrawork Autonomous Engineer

Name: Ultrawork Autonomous Engineer
Author: Chachamaru127

byChachamaru127

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160

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Productivity & Workflow

Automates the entire development lifecycle by autonomously iterating through tasks, builds, and tests until a project goal is fully realized.

Ultrawork is a high-autonomy development harness for Claude Code designed to handle large-scale implementations without manual oversight. It transforms Claude from a task-by-task assistant into an autonomous engineer that follows a specialized Plan-Work-Review cycle, learning from execution failures and persisting until all specified requirements in Plans.md are completed, verified, and approved. It is the ideal solution for developers who want to initiate complex features or major refactors and let the AI manage the tedious iterative cycle of coding, debugging, and testing until the job is 100% finished.

Key Features

01Persistent session state management to maintain context through complex, multi-iteration workflows

02Self-learning capabilities that allow the agent to adapt and pivot based on previous execution failures

03Autonomous Plan-Work-Review cycles for long-running development tasks

04Natural language task range selection for targeting specific features or entire project plans

05160 GitHub stars

06Automated multi-step verification including build checks, unit tests, and harness reviews

Use Cases

01Implementing comprehensive feature sets like authentication or user management in a single autonomous session

02Executing large-scale refactoring projects across multiple files with mandatory automated testing

03Hands-off project bootstrapping where the AI iterates until all initial architectural tasks are complete and verified

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add chachamaru127/claude-code-harness ultrawork

For use in Claude.ai and ChatGPT

Download Skill