programming-principles SKILL.md skillA
programming-principles from magnus919/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add magnus919/agent-skills/programming-principles@git:20260805.3eb7bd4Pins git:20260805.3eb7bd4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- magnus919/agent-skills
- Path
programming-principles/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260805.3eb7bd4, committed Aug 5, 2026
- First version recorded
- Jul 21, 2026
- Size
- 19,161 bytes
- Repository stars
- 166
- License
- MIT
Apply distilled coding principles from 14 classic software books to code review, refactoring, design, and implementation decisions. Do not use for language- or framework-specific tutorials, tool manuals, or tasks already governed by a project's established conventions.
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
# Programming Principles (14 Books) Principles distilled from the `mattpocock/agent-rules-books` repo — 14 pre-made AGENTS.md rule sets derived from classic software engineering books. Use this skill directly during code review, refactoring, design, and implementation. For deeper per-book coverage, load the relevant reference file. ## Task-to-Book Mapping When the task involves... Load / apply principles from ──────────────────────────────────────────────────────────────────────── Everyday implementation & code review Clean Code, Code Complete Refactoring existing code Refactoring, WELC Architecture / dependency management Clean Architecture, APoSD Domain modeling / business rules DDD, DDD Distilled, IDDD Enterprise app patterns / layering PoEAA Production reliability / stability Release It! Data consistency / scalability / events DDIA Engineering craft / automation Pragmatic Programmer Designing APIs / module boundaries APoSD Legacy code / risky changes WELC, Refactoring ## How to Perform a Code Assessment …
Read the whole file at its exact version.
How to install
mdr add magnus919/agent-skills/programming-principles@sha256:0a5f9d1365f17c70The line at the top of this page pins the label git:20260805.3eb7bd4, 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_lqhz2ou3xhruy7pb)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 21, 2026 and Aug 5, 2026, about one every 14 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260805.3eb7bd4 latest | 2026-08-05 | 3eb7bd4 | 19,161 B | A | view · diff |
| git:20260721.1037324 | 2026-07-21 | 1037324 | 18,644 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 (19161 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
magnus919/agent-skills · 166 stars · license MIT · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_lqhz2ou3xhruy7pb GET https://markdownregistry.com/api/v1/resolve?ref=magnus919/agent-skills/programming-principles GET https://markdownregistry.com/api/v1/blob/0a5f9d1365f17c70403b63d2732460d4360f6e5e55e2fad39fbed696ae885395
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.