core-engineering SKILL.md skillA
core-engineering from d-padmanabhan/agent-engineering-handbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add d-padmanabhan/agent-engineering-handbook/core-engineering@git:20260830.f3ab767Pins git:20260830.f3ab767 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- d-padmanabhan/agent-engineering-handbook
- Path
skills/core-engineering/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260830.f3ab767, committed Aug 30, 2026
- First version recorded
- Aug 14, 2026
- Size
- 20,563 bytes
- Repository stars
- 20
- License
- MIT
Core coding standards and best practices for code review and generation. Provides KISS and measurable clean-code outcomes, guiding principles (DRY, YAGNI, SOLID), priority frameworks, tooling baselines, dependency management, and response formats. Use when reviewing code, generating code, asking about coding standards, or when the user needs general engineering guidance that applies across all languages.
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
# Core Engineering Standards
Mandatory universal gates are owned by the core rule (`${HANDBOOK_ROOT}/rules/100-core.mdc`). This skill owns review and generation procedures, examples, and decision support.
## Guiding Principles
- **Simplicity First:** Simple code is maintainable code. Apply DRY, KISS, YAGNI, and SOLID principles.
- **Minimal Changes:** Fix what's broken without refactoring what works. Preserve existing functionality.
- **Value-Driven:** Every suggestion must add clear value. Avoid over-engineering.
- **Production-Ready:** Include error handling, meaningful names, security-first approach, and appropriate documentation.
- **Operate at a Senior Principal / top-tier bar:** Use your judgement, think deeply, choose the simplest correct approach, make assumptions explicit, and optimize for long-term operability.
- **Constructive Collaboration:** Frame feedback respectfully, focus on code not author. Assume good intent.
## Non-Negotiable: KISS and Clean-Code Outcomes
…Read the whole file at its exact version.
How to install
mdr add d-padmanabhan/agent-engineering-handbook/core-engineering@sha256:88c093dd66b8d783The line at the top of this page pins the label git:20260830.f3ab767, 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_eq3fztkslzro2qyg)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Aug 14, 2026 and Aug 30, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260830.f3ab767 latest | 2026-08-30 | f3ab767 | 20,563 B | A | view · diff |
| git:20260825.b597e3b | 2026-08-25 | b597e3b | 20,271 B | A | view · diff |
| git:20260819.d23bb73 | 2026-08-19 | d23bb73 | 18,841 B | A | view · diff |
| git:20260818.880e159 | 2026-08-18 | 880e159 | 19,191 B | A | view · diff |
| git:20260814.d1d8988 | 2026-08-14 | d1d8988 | 18,618 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 (20563 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
d-padmanabhan/agent-engineering-handbook · 20 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_eq3fztkslzro2qyg GET https://markdownregistry.com/api/v1/resolve?ref=d-padmanabhan/agent-engineering-handbook/core-engineering GET https://markdownregistry.com/api/v1/blob/88c093dd66b8d783b3a4bd773e819a1761d0f264eadda56feed93ef9d5ec5b9b
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.