ln-43-code-modernizer SKILL.md skillA

ln-43-code-modernizer 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-43-code-modernizer@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/implementation-suite/skills/ln-43-code-modernizer/SKILL.md
Versions recorded
7
Latest version
git:20261026.bb2f0cb, committed Oct 26, 2026
First version recorded
Sep 12, 2026
Size
17,684 bytes
Repository stars
589
License
MIT

Modernizes a bounded capability to reduce demonstrated maintenance cost; not routine upgrades or performance tuning.

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

# Code Modernizer

**Goal:** Modernize a bounded capability only when the new design measurably reduces human workflow friction, maintenance, risk, dependency duplication, or delivered artifact cost. Preserve behavior, isolate migrations, and revert changes that do not create net value.

**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.
Preserve intent, scope, mode, and existing authorization. Complete authorized work before required external approval; ask only consequential unresolved choices. If nobody can answer, report the exact question and apply the skill's gap verdict without waiting or guessing. Cite any blocking instruction and unresolved boundary; never invent approval gates. Scale depth to material risk; preserve mandatory checks, dependencies, and safety order while choosing verification…
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add levnikolaevich/claude-code-skills/ln-43-code-modernizer@sha256:13520528ad200653

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_2tuniw3tjlyxdhsd.svg)](https://markdownregistry.com/a/art_2tuniw3tjlyxdhsd)

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 17,684 BA view · diff
git:20261018.9ab066b2026-10-18 9ab066b 17,736 BA view · diff
git:20261012.161af7f2026-10-12 161af7f 16,766 BA view · diff
git:20261012.2a77c732026-10-12 2a77c73 16,965 BA view · diff
git:20261002.a5d6eab2026-10-02 a5d6eab 15,507 BA view · diff
git:20260916.dded6882026-09-16 dded688 15,093 BA view · diff
git:20260912.16a43822026-09-12 16a4382 14,873 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 (17684 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_2tuniw3tjlyxdhsd
GET https://markdownregistry.com/api/v1/resolve?ref=levnikolaevich/claude-code-skills/ln-43-code-modernizer
GET https://markdownregistry.com/api/v1/blob/13520528ad2006537e88ad2fded58e45919e7b5244116722de349fb36c60e2f4

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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