common-best-practices SKILL.md skillA
common-best-practices from hoangnguyen0403/agent-skills-standard is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hoangnguyen0403/agent-skills-standard/common-best-practices@git:20260714.6bf9b5ePins git:20260714.6bf9b5e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hoangnguyen0403/agent-skills-standard
- Path
.agents/skills/common/common-best-practices/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260714.6bf9b5e, committed Jul 14, 2026
- First version recorded
- Apr 23, 2026
- Size
- 1,663 bytes
- Repository stars
- 582
- License
- MIT
Enforce SOLID principles, guard-clause style, function size limits, and intention-revealing naming across all languages. Use when refactoring for readability, applying clean-code patterns, reviewing naming conventions, or reducing function complexity.
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
# Global Best Practices ## **Priority: P0 (CRITICAL)** ## Core Principles - **SOLID**: Follow SRP (One reason to change), OCP (Open to extension), LSP, ISP, DIP. - **KISS/DRY/YAGNI**: Favor readability. Abstract repeated logic. No " in case" code. - **Naming**: Use intention-revealing names (`isUserAuthenticated` > `checkUser`). Match language casing. ## Code Hygiene - **Size Limits**: Functions < 30 lines. Services < 600 lines. Utils < 400 lines. - **Early Returns**: Use guard clauses. Avoid deep nesting. - **Comments**: Explain **why**, not **what**. Refactor bad code; don't comment it. - **Input**: Validate/sanitize all external inputs. ## Anti-Patterns - **No Hardcoded Constants**: Use named config/env vars. - **No Deep Nesting**: Use guard clauses. - **No Global State**: Prefer dependency injection. - **No Empty Catches**: Always handle, log, or rethrow. ## References - [Code Structure Patterns](references/CODE_STRUCTURE.md) — file/function organization - [Effectiveness Guide](references/EFFECTIVENESS.md) — practical application examples
Read the whole file at its exact version.
How to install
mdr add hoangnguyen0403/agent-skills-standard/common-best-practices@sha256:e714c24b066e1169The line at the top of this page pins the label git:20260714.6bf9b5e, 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_6qvuripxiz5i244n)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Apr 23, 2026 and Jul 14, 2026, about one every 83 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260714.6bf9b5e latest | 2026-07-14 | 6bf9b5e | 1,663 B | A | view · diff |
| git:20260423.b7ed028 | 2026-04-23 | b7ed028 | 1,667 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 (1663 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
hoangnguyen0403/agent-skills-standard · 582 stars · license MIT · pushed 2026-11-03 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_6qvuripxiz5i244n GET https://markdownregistry.com/api/v1/resolve?ref=hoangnguyen0403/agent-skills-standard/common-best-practices GET https://markdownregistry.com/api/v1/blob/e714c24b066e11695c48effcebec289fd38a44a508e3e95ef575087c35b6a433
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.
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