code-quality-principles skillA
code-quality-principles is agent-read markdown (skill) from athola/claude-night-market: Applies KISS, YAGNI, and SOLID principles for clean code with reduced complexity. Use when refactoring or reviewing code for over-engineering..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Code Quality Principles
Guidance on KISS, YAGNI, and SOLID principles with language-specific examples.
## When To Use
- Improving code readability and maintainability
- Applying SOLID, KISS, YAGNI principles during refactoring
## When NOT To Use
- Throwaway scripts or one-time data migrations
- Performance-critical code where readability trades are justified
## KISS (Keep It Simple, Stupid)
**Principle**: Avoid unnecessary complexity. Prefer obvious solutions over clever ones.
### Guidelines
| Prefer | Avoid |
|--------|-------|
| Simple conditionals | Complex regex for simple checks |
| Explicit code | Magic numbers/strings |
| Standard patterns | Clever shortcuts |
| Direct solutions | Over-abstracted layers |
### Python Example
```python
# Bad: Overly clever one-liner
users = [u for u in (db.get(id) for id in ids) if u and u.active and not u.banned]
# Good: Clear and readable
users = []
for user_id in ids:
user = db.get(user_id)
if user and user.active and not user.banned:
users.append(user)
```
### Rust Example
```rust
// Bad: Unnecessary complexity
fn process(data: &[u8]) -> Result<Vec<u8>, Box<dyn std::error::Error>> {
data.iter()
…Read the whole file at its exact version.
How to install
mdr add athola/claude-night-market/code-quality-principles@git:20260902.d04952cmdr add athola/claude-night-market/code-quality-principles@sha256:6d5dc3c4be68fc11Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_f7cqu5amvtiacoi6)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260902.d04952c latest | 2026-09-02 | d04952c | 8,387 B | A | view · diff |
| git:20260813.0bee82e | 2026-08-13 | 0bee82e | 8,386 B | A | view · diff |
| git:20260625.88636be | 2026-06-25 | 88636be | 8,360 B | A | view · diff |
| git:20260622.c7c8f6f | 2026-06-22 | c7c8f6f | 8,363 B | A | view · diff |
| git:20260521.6f5c7d9 | 2026-05-21 | 6f5c7d9 | 7,667 B | A | view |
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 (8387 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
athola/claude-night-market · 338 stars · license MIT · pushed 2026-09-22 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_f7cqu5amvtiacoi6 GET https://markdownregistry.com/api/v1/resolve?ref=athola/claude-night-market/code-quality-principles GET https://markdownregistry.com/api/v1/blob/6d5dc3c4be68fc11adce4374974e3ada09ba597be6c01e3ba3daa0d10f5bb7ab
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