principle-solid SKILL.md skillA
principle-solid from lugassawan/swe-workbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lugassawan/swe-workbench/principle-solid@git:20260828.71a6399Pins git:20260828.71a6399 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lugassawan/swe-workbench
- Path
skills/principle-solid/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260828.71a6399, committed Aug 28, 2026
- First version recorded
- Apr 21, 2026
- Size
- 4,939 bytes
- Repository stars
- 3
- License
- MIT
SOLID principles — SRP, OCP, LSP, ISP, DIP (single responsibility, open-closed, Liskov substitution, interface segregation, dependency inversion). Auto-load when designing classes, or discussing coupling, abstractions, or any SOLID violation.
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
<!-- preload-canary: SWB-PRELOAD-PRINCIPLE-SOLID --> # SOLID Five heuristics for OO design. Guidelines, not laws. ## S — Single Responsibility *A module should have one reason to change.* Usually that means one *actor* it serves. - **Good:** `InvoiceCalculator` computes totals; `InvoiceRenderer` formats output. - **Bad:** `Invoice` that calculates, renders, emails, and persists. - **Misapplied:** splitting a 20-line class into five 4-line classes. SRP is about change vectors, not line count. ## O — Open-Closed *Open for extension, closed for modification.* New behavior should not require editing stable code. - **Good:** a payment processor iterates `PaymentMethod` implementations; new methods are new files. - **Bad:** a giant `switch` on `paymentType` that every new method edits. - **Misapplied:** introducing a plugin framework for three enum values that will never grow. ## L — Liskov Substitution *Subtypes must be usable wherever the base type is expected, without surprising callers.* - **Good:** `ReadOnlyList` is not a subtype of `MutableList` — don't force it. - **Bad:** `Square extends Rectangle` overriding `setWidth` to also set height. …
Read the whole file at its exact version.
How to install
mdr add lugassawan/swe-workbench/principle-solid@sha256:3599380afab16f1aThe line at the top of this page pins the label git:20260828.71a6399, 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_3ynwl4vmwqkicfqh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Apr 21, 2026 and Aug 28, 2026, about one every 32 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260828.71a6399 latest | 2026-08-28 | 71a6399 | 4,939 B | A | view · diff |
| git:20260725.074b496 | 2026-07-25 | 074b496 | 4,994 B | A | view · diff |
| git:20260610.7452f8d | 2026-06-10 | 7452f8d | 4,941 B | A | view · diff |
| git:20260421.35b6277 | 2026-04-21 | 35b6277 | 4,761 B | A | view · diff |
| git:20260421.54db3b9 | 2026-04-21 | 54db3b9 | 4,714 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 (4939 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
lugassawan/swe-workbench · 3 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3ynwl4vmwqkicfqh GET https://markdownregistry.com/api/v1/resolve?ref=lugassawan/swe-workbench/principle-solid GET https://markdownregistry.com/api/v1/blob/3599380afab16f1a9fc0c8c05c1db2b88b33cdee2acf2d283a9cc615ab1fabc8
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.