What triggers Ultrathink's deep thinking mode?

It triggers automatically when it detects complex problems like unexplained bugs, performance bottlenecks, or architectural design decisions.

Can I use it for security audits?

Yes, Ultrathink is specifically designed to analyze security vulnerabilities and provide deep-dive risk assessments.

Is Ultrathink used for simple code fixes?

No, it focuses on high-complexity tasks to save time, avoiding over-analysis on routine tasks like documentation or simple bug fixes.

Does it require manual activation?

No, Ultrathink is designed to seamlessly switch modes based on the complexity of your request without interrupting your workflow.

How does the analysis output look?

It provides a structured markdown breakdown including hypothesis generation, evidence collection, and a final recommended solution.

Ultrathink Deep Reasoning

Name: Ultrathink Deep Reasoning
Author: shiiman

byshiiman

•

Productivity & Workflow

Automatically activates a deep analytical framework to solve complex architectural challenges, elusive bugs, and performance bottlenecks.

Ultrathink is a specialized Claude Code skill designed to autonomously identify and tackle high-complexity technical challenges that exceed standard reasoning. By monitoring user requests for specific triggers—such as architectural trade-offs, security vulnerabilities, or inexplicable system failures—it bypasses routine processing to engage in a rigorous multi-step analytical workflow. This process includes problem decomposition, hypothesis generation, and evidence-based evaluation, ensuring comprehensive solutions and high-level reasoning without requiring any manual mode switching or confirmation from the user.

Key Features

01Architectural & Performance Analysis

02Seamless Mode Switching

03Hypothesis-Driven Problem Solving

04Structured Deep Analysis Output

052 GitHub stars

06Autonomous Complexity Detection

Use Cases

01Evaluating technical trade-offs for large-scale system architecture decisions

02Debugging intermittent race conditions or bugs with no obvious root cause

03Performing deep-dive security audits and performance optimization assessments

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add shiiman/claude-code-plugins ultrathink

For use in Claude.ai and ChatGPT

Download Skill