breakdown-epic-arch

breakdown-epic-arch is a skill for Claude Code, Codex from boshi-xixixi/TraeSkill. It costs 27 tokens per session (602 once invoked), scanned A, original, MIT.

A planning prompt that turns a product requirements document into a high-level technical architecture for a large feature or project. It describes components, connections, deployment choices, and technical dependencies without writing the implementation.

In plain words
What is it for?
Use it to create an architecture document for TypeScript and Next.js systems, including Docker deployment, APIs, authentication, and a Turborepo monorepo—a repository containing multiple related projects.
Why use it?
It gives developers and architects a shared design before coding begins, reducing unclear responsibilities and missed infrastructure needs.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to create an architecture document for TypeScript and Next.js systems, including Docker deployment, APIs, authentication, and a Turborepo monorepo—a repository containing multiple related projects.

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Install with agentmods
npx agentmods add skills/boshi-xixixi/traeskill/breakdown-epic-arch
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add boshi-xixixi/TraeSkill --skill breakdown-epic-arch
Clone the repo
git clone --depth 1 https://github.com/boshi-xixixi/TraeSkill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for breakdown-epic-arch

README.md
[![agentmods](https://agentmods.dev/badge/skills/boshi-xixixi/traeskill/breakdown-epic-arch/github.svg)](https://agentmods.dev/skills/boshi-xixixi/traeskill/breakdown-epic-arch)
Your own site
<a href="https://agentmods.dev/skills/boshi-xixixi/traeskill/breakdown-epic-arch"><img src="https://agentmods.dev/badge/skills/boshi-xixixi/traeskill/breakdown-epic-arch/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for breakdown-epic-arch

Your own site · 80×15
<a href="https://agentmods.dev/skills/boshi-xixixi/traeskill/breakdown-epic-arch"><img src="https://agentmods.dev/badge/skills/boshi-xixixi/traeskill/breakdown-epic-arch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 602 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.00602
Opus 5 $0.00014 $0.00301
Sonnet 5 $0.00005 $0.00120
Haiku 4.5 $0.00003 $0.00060

Measured 9d ago against content hash 27d126ec1ab8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

breakdown-epic-arch scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.trae/Skills/.agents/skills/breakdown-epic-arch/SKILL.md · 67 lines

How it starts

The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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.

Read the full file on GitHub · 67 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 67 lines · 27 tokens per session scan A 27d126ec1ab8

Subscribe to this mod's changes

breakdown-epic-arch is a skill published in the GitHub repository boshi-xixixi/TraeSkill (262 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 602 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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