breakdown-epic-arch
Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.
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Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/github/awesome-copilot --skill breakdown-epic-arch- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads breakdown-epic-arch automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
Security audits
Independent scans of the skill's instructions and bundled files.
SKILL.md
The instructions your agent reads when the skill is triggered.
Epic Architecture Specification Prompt
Goal
Act as a Senior Software Architect. Your task is to take an Epic PRD and create a high-level technical architecture specification. This document will guide the development of the epic, outlining the major components, features, and technical enablers required.
Context Considerations
- The Epic PRD from the Product Manager.
- Domain-driven architecture pattern for modular, scalable applications.
- Self-hosted and SaaS deployment requirements.
- Docker containerization for all services.
- TypeScript/Next.js stack with App Router.
- Turborepo monorepo patterns.
- tRPC for type-safe APIs.
- Stack Auth for authentication.
Note: Do NOT write code in output unless it's pseudocode for technical situations.
Output Format
The output should be a complete Epic Architecture Specification in Markdown format, saved to /docs/ways-of-work/plan/{epic-name}/arch.md.
Specification Structure
1. Epic Architecture Overview
- A brief summary of the technical approach for the epic.
2. System Architecture Diagram
Create a comprehensive Mermaid diagram that illustrates the complete system architecture for this epic. The diagram should include:
- User Layer: Show how different user types (web browsers, mobile apps, admin interfaces) interact with the system
- Application Layer: Depict load balancers, application instances, and authentication services (Stack Auth)
- Service Layer: Include tRPC APIs, background services, workflow engines (n8n), and any epic-specific services
- Data Layer: Show databases (PostgreSQL), vector databases (Qdrant), caching layers (Redis), and external API integrations
- Infrastructure Layer: Represent Docker containerization and deployment architecture
Use clear subgraphs to organize these layers, apply consistent color coding for different component types, and show the data flow between components. Include both synchronous request paths and asynchronous processing flows where relevant to the epic.
3. High-Level Features & Technical Enablers
- A list of the high-level features to be built.
- A list of technical enablers (e.g., new services, libraries, infrastructure) required to support the features.
4. Technology Stack
- A list of the key technologies, frameworks, and libraries to be used.
5. Technical Value
- Estimate the technical value (e.g., High, Medium, Low) with a brief justification.
6. T-Shirt Size Estimate
- Provide a high-level t-shirt size estimate for the epic (e.g., S, M, L, XL).
Context Template
- Epic PRD: [The content of the Epic PRD markdown file]
FAQ
What does the breakdown-epic-arch skill do?
Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.
How do I install breakdown-epic-arch?
Run npx skills add https://github.com/github/awesome-copilot --skill breakdown-epic-arch in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/breakdown-epic-arch/ (personal) or .claude/skills/breakdown-epic-arch/ (project).
Which AI agents can use breakdown-epic-arch?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is breakdown-epic-arch safe to install?
Security partners have reviewed it: Gen Agent Trust Hub passed; Socket passed; Snyk passed; Runlayer flagged items to review; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.
Who maintains breakdown-epic-arch?
It is published by github in github/awesome-copilot, and it is an official skill from the maker of the technology it covers. It has 8,961 recorded installs.
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