ln-23-system-design-proposal-builder SKILL.md skillA

ln-23-system-design-proposal-builder from levnikolaevich/claude-code-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add levnikolaevich/claude-code-skills/ln-23-system-design-proposal-builder@git:20261026.bb2f0cb

Pins git:20261026.bb2f0cb in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
levnikolaevich/claude-code-skills
Path
plugins/architecture-suite/skills/ln-23-system-design-proposal-builder/SKILL.md
Versions recorded
7
Latest version
git:20261026.bb2f0cb, committed Oct 26, 2026
First version recorded
Sep 12, 2026
Size
12,578 bytes
Repository stars
589
License
MIT

Designs target system boundaries, contracts and tradeoffs from requirements; does not plan tasks or implement.

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

# System Design Proposal Builder

**Goal:** Create a proportionate, evidence-backed target system design that turns requirements into explicit boundaries, contracts, data flow, failure behavior, operations, and tradeoffs. Change only the approved design document; do not implement, audit, or approve the delivery.

**Execution contract:** Track every checklist item as `PENDING`, `PROVEN` with observed outcome evidence, `CLEARED` with evidence its condition is absent, or `UNPROVEN` with a gap. Reading, delegation, tool failure, zero exit status, and self-reported success are not proof. Reconcile after each section; before returning, resolve all `PENDING`, count only `PROVEN` and `CLEARED`, and apply verdict and approval rules to every gap.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add levnikolaevich/claude-code-skills/ln-23-system-design-proposal-builder@sha256:8c6d4f9db7d127b2

The line at the top of this page pins the label git:20261026.bb2f0cb, 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_ycumzyimzh4fabwu.svg)](https://markdownregistry.com/a/art_ycumzyimzh4fabwu)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 7 versions of this file, between Sep 12, 2026 and Oct 26, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261026.bb2f0cb latest2026-10-26 bb2f0cb 12,578 BA view · diff
git:20261018.9ab066b2026-10-18 9ab066b 12,326 BA view · diff
git:20261012.161af7f2026-10-12 161af7f 11,556 BA view · diff
git:20261012.2a77c732026-10-12 2a77c73 11,755 BA view · diff
git:20261002.a5d6eab2026-10-02 a5d6eab 10,332 BA view · diff
git:20260916.dded6882026-09-16 dded688 9,753 BA view · diff
git:20260912.16a43822026-09-12 16a4382 9,989 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12578 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

levnikolaevich/claude-code-skills · 589 stars · license MIT · pushed 2026-11-05 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_ycumzyimzh4fabwu
GET https://markdownregistry.com/api/v1/resolve?ref=levnikolaevich/claude-code-skills/ln-23-system-design-proposal-builder
GET https://markdownregistry.com/api/v1/blob/8c6d4f9db7d127b261b53d0806e16e68d6c9c15bd041c2e836d97bfb4c1912fd

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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