What is the APEX methodology?

APEX stands for Analyze, Plan, Execute, and eXamine. It is a structured implementation cycle that ensures code changes are well-researched and thoroughly validated before completion.

Does this skill support automated testing?

Absolutely. By enabling the --test flag, the workflow will automatically analyze requirements, generate relevant tests, and run them until they pass.

Can I resume a task if it gets interrupted?

Yes, by using the -r or --resume flag followed by your task ID, the skill restores its state from saved files and continues from the last completed step.

What is 'Examine' mode?

Examine mode triggers an adversarial review where a sub-agent specifically looks for bugs, security vulnerabilities, and edge cases in the newly implemented code.

How does it manage context for large codebases?

It uses progressive step loading and parallel exploration agents to gather only the necessary context for each phase, saving tokens while maintaining deep technical accuracy.

APEX Workflow Implementation

Name: APEX Workflow Implementation
Author: atournayre

byatournayre

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Productivity & Workflow

Executes a systematic four-stage methodology (Analyze-Plan-Execute-eXamine) for structured and validated software implementation.

The workflow-apex skill provides a professional-grade framework for complex software development tasks within Claude Code. By following the APEX methodology—Analyze, Plan, Execute, and eXamine—it ensures that every code change is thoroughly researched, strategically planned, accurately implemented, and rigorously validated. It leverages adaptive parallel sub-agents for deep codebase exploration, supports automated test generation, and includes an optional adversarial review phase to catch edge cases, making it an essential tool for maintaining high code quality during autonomous development.

Key Features

01Integrated test-driven workflow with automated test creation and runner cycles

02State persistence with task saving and resume capabilities for long-running workflows

03Structured APEX methodology (Analyze, Plan, Execute, eXamine) for reliable delivery

048 GitHub stars

05Adversarial code review mode to identify potential bugs and architectural flaws

06Adaptive parallel agents (1-10) for deep context gathering and codebase analysis

Use Cases

01Systematically debugging critical issues with mandatory validation and adversarial review

02Automating the end-to-end development lifecycle from initial analysis to Pull Request creation

03Implementing complex new features that require deep architectural context and planning

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add atournayre/claude-marketplace workflow-apex

For use in Claude.ai and ChatGPT

Download Skill