elegant-architecture SKILL.md skillA
elegant-architecture from majiayu000/spellbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add majiayu000/spellbook/elegant-architecture@git:20260605.a09e45cPins git:20260605.a09e45c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- majiayu000/spellbook
- Path
skills/elegant-architecture/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260605.a09e45c, committed Jun 5, 2026
- Size
- 7,488 bytes
- Repository stars
- 290
- License
- MIT
Guides clean architecture design with strict 200-line file limits. Use when starting new features, refactoring large files, or planning module structure. Enforces modular design and real testing.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Elegant Architecture
## Core Principles
- **200-line limit** — No file exceeds 200 lines of code
- **Split when exceeded** — Convert to folder or multiple files
- **Plan first, code later** — Design architecture before implementation
- **Single responsibility** — Each module does one thing well
- **Real tests only** — No mocks, test actual behavior
## Execution Flow
### 1. Analyze Requirements
```markdown
Before writing any code:
- List all features/functionalities needed
- Estimate code volume for each module
- Identify shared components
- Map dependencies between modules
```
### 2. Design File Structure
```markdown
When estimated lines > 200:
- Convert file to folder with index
- Split by sub-functionality
- Extract shared utilities
Example transformation:
```
```
# Before (user.ts - 400+ lines)
user.ts
# After (user/ folder)
user/
├── index.ts # Public exports
├── types.ts # Interfaces, types
├── validation.ts # Input validation
├── repository.ts # Data access
└── service.ts # Business logic
```
### 3. Define Interfaces First
```typescript
// Define contracts before implementation
interface UserService {
…Read the whole file at its exact version.
How to install
mdr add majiayu000/spellbook/elegant-architecture@sha256:e7c3a12d8989fcb7The line at the top of this page pins the label git:20260605.a09e45c, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_pf2xyazpsqr4cahg)
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Versions
The registry has recorded 1 version of this file, committed on Jun 5, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7488 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
majiayu000/spellbook · 290 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pf2xyazpsqr4cahg GET https://markdownregistry.com/api/v1/resolve?ref=majiayu000/spellbook/elegant-architecture GET https://markdownregistry.com/api/v1/blob/e7c3a12d8989fcb7607c63a3d5c89754140f381845f4d35e25b55baeef65e83f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.