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Official agent skill

Breakdown Epic Arch

by github in github/awesome-copilot

Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.

OfficialMITAuto-check passedProduct & Project Management

Install Breakdown Epic Arch

skills CLI
$ npx skills add github/awesome-copilot --skill breakdown-epic-arch -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install github/awesome-copilot breakdown-epic-arch --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/breakdown-epic-arch .claude/skills/breakdown-epic-arch && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
breakdown-epic-arch
GitHub stars
40k
Used in
1 other repo
Token cost
~712 tokens
SKILL.md length
345 words
Files
1
Skills in repo
417
Repo updated
First seen
Licence
MIT

At a glance

Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.

  • Works in 6 steps: Epic Architecture Overview → System Architecture Diagram → High-Level Features & Technical Enablers → …
  • Tasks that involve PRD writing
  • SKILL.md covers Goal, Context Considerations, Output Format and Context Template
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Breakdown Epic Arch is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.

Its SKILL.md is about 710 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Product & Project Management, covering PRD writing. The repository describes itself as: Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot. The licence is MIT.

When your agent uses it

  • Tasks that involve PRD writing

Example prompts

  • “/breakdown-epic-arch”

Requirements

  • Docker

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Epic Architecture Overview
  2. System Architecture Diagram
  3. High-Level Features & Technical Enablers
  4. Technology Stack
  5. Technical Value
  6. T-Shirt Size Estimate

What it can do on your machine

Read from SKILL.md and the folder at commit 727ff2e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Breakdown Epic Arch loads about 712 tokens when it runs. Until then it costs about 33 tokens; SKILL.md has 345 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~33
When it runs · the whole SKILL.md, loaded when a task matches
~712

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from github/awesome-copilot at commit 727ff2e, republished under its MIT licence (© github). 345 words, ~712 tokens.

Download SKILL.mdSave it as .claude/skills/breakdown-epic-arch/SKILL.md (or your agent's skills folder).
name
breakdown-epic-arch
description
Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.

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]

© github, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/breakdown-epic-arch of github/awesome-copilot.

Open the folder on GitHubat commit 727ff2e

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in github/awesome-copilot, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Breakdown Epic Arch next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Breakdown Epic Arch compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Breakdown Epic Arch this skillgithub/awesome-copilot40k1 repos~712Automated safety check: PassMIT
Bmad Document Projectaj-geddes/claude-code-bmad-skills487—~2kAutomated safety check: PassCustom licence
CCPM Project Managementautomazeio/ccpm8.4k—~1.1kAutomated safety check: PassMIT
To Issuesywwynm/EverythingDone14412 repos~893Automated safety check: PassGPL-3.0
ArchitectHainrixz/the-architect532—~3.6kAutomated safety check: PassMIT
Schematicblader/schematic239—~2.2kAutomated safety check: PassMIT

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Categories

Questions about Breakdown Epic Arch

What does Breakdown Epic Arch do?

Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document. Breakdown Epic Arch is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Prompt for creating the high-level technical architecture for an Epic, based on a Product Requirements Document.

When should I use Breakdown Epic Arch?

Breakdown Epic Arch fits situations like: tasks that involve PRD writing.

How do I install Breakdown Epic Arch in Claude Code?

Run `npx skills add github/awesome-copilot --skill breakdown-epic-arch -a claude-code`. Or copy the skill folder (skills/breakdown-epic-arch in github/awesome-copilot) into .claude/skills/breakdown-epic-arch in your project. Claude Code loads it when a task matches its description.

How do I install Breakdown Epic Arch in Codex?

Run `npx skills add github/awesome-copilot --skill breakdown-epic-arch -a codex`. Or copy the skill folder (skills/breakdown-epic-arch in github/awesome-copilot) into .agents/skills/breakdown-epic-arch in your project. Codex loads it when a task matches its description.

Can I use Breakdown Epic Arch in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add github/awesome-copilot --skill breakdown-epic-arch -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/breakdown-epic-arch, .gemini/skills/breakdown-epic-arch, .github/skills/breakdown-epic-arch and .opencode/skills/breakdown-epic-arch in your project.

What does Breakdown Epic Arch need to run?

SKILL.md names no scripts, command-line tools or credentials: Breakdown Epic Arch is instructions for the agent only. Our summary lists: Docker.

Does Breakdown Epic Arch access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Breakdown Epic Arch safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Breakdown Epic Arch use?

Breakdown Epic Arch is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Breakdown Epic Arch use?

About 712 tokens (SKILL.md is roughly 2.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Breakdown Epic Arch?

Skills that share tags, products or a category with Breakdown Epic Arch: Bmad Document Project (aj-geddes/claude-code-bmad-skills, 487 stars), CCPM Project Management (automazeio/ccpm, 8.4k stars), To Issues (ywwynm/EverythingDone, 144 stars) and Architect (Hainrixz/the-architect, 532 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Breakdown Epic Arch?

github (a GitHub organization, an official publisher) maintains it in github/awesome-copilot, which has 39,748 GitHub stars. The repository holds 417 skills in this directory. The repository was last updated on October 7, 2026.

Source: github/awesome-copilot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.