DESIGN.md@rubber-duck/evals/fixtures/designA

DESIGN.md@rubber-duck/evals/fixtures/design from the-artificer-of-ciphers-llc/skills-from-the-artificer is a DESIGN.md file: the design rules coding agents follow in that repo.

Install it, pinned
mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/rubber-duck/evals/fixtures/design/DESIGN.md@git:20261014.1109f98

Pins git:20261014.1109f98 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 14 of 14 checks passed
Kind
DESIGN.md file
Repository
the-artificer-of-ciphers-llc/skills-from-the-artificer
Path
rubber-duck/evals/fixtures/design/DESIGN.md
Versions recorded
1
Latest version
git:20261014.1109f98, committed Oct 14, 2026
Size
472 bytes
Repository stars
6
License
MIT

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

# Design: cache invalidation for the price service
1. `PriceCache.set(sku, price)` stores with a 60s TTL.
2. When `PriceService.update(sku, price)` runs, it writes the DB then calls `PriceCache.delete(sku)`.
3. Readers call `PriceService.get(sku)`: cache first, then DB, then `PriceCache.set`.
4. Bulk import (`importPrices(rows)`) writes the DB in a transaction; invalidation of changed SKUs "is handled by the TTL".
5. We claim readers never see a price older than 60s.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add the-artificer-of-ciphers-llc/skills-from-the-artificer/rubber-duck/evals/fixtures/design/DESIGN.md@sha256:f4d76dcd0dcdaf12

The line at the top of this page pins the label git:20261014.1109f98, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qhl5mjlspdhcdfac.svg)](https://markdownregistry.com/a/art_qhl5mjlspdhcdfac)

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Versions

The registry has recorded 1 version of this file, committed on Oct 14, 2026.

versioncommittedcommitsizeaudit
git:20261014.1109f98 latest2026-10-14 1109f98 472 BA view

Audit of the latest version

A  14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Size between 200 bytes and 200 KB (472 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

GitHub

the-artificer-of-ciphers-llc/skills-from-the-artificer · 6 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qhl5mjlspdhcdfac
GET https://markdownregistry.com/api/v1/resolve?ref=the-artificer-of-ciphers-llc/skills-from-the-artificer/rubber-duck/evals/fixtures/design/DESIGN.md
GET https://markdownregistry.com/api/v1/blob/f4d76dcd0dcdaf1252a994648e88245b1a69bdc49a47fb01cf1ddc9ad3608d67

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: what DESIGN.md is and how agents use it · which agent file does what.

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