diverse-island-ga SKILL.md skillA

diverse-island-ga from optima-cityu/llm4ad_next is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add optima-cityu/llm4ad_next/diverse-island-ga@git:20260908.f40b41b

Pins git:20260908.f40b41b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
optima-cityu/llm4ad_next
Path
skills/algo-design/diverse-island-ga/SKILL.md
Versions recorded
1
Latest version
git:20260908.f40b41b, committed Sep 8, 2026
Size
3,434 bytes
Repository stars
674
License
BSD-3-Clause

Diverse Island Genetic Algorithm skill. USE WHEN the user explicitly requests Diverse Island GA / diversity-oriented island GA, or wants specialized island roles with adaptive migration and novelty preservation instead of a uniform island GA.

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

# Diverse Island GA Skill

> **Reference**: LLM4AD_Next specialized island model. Extends IslandGA with **specialized island roles** (a continuous exploitation↔exploration spectrum), **adaptive stagnation-aware migration**, and **novelty preservation**.

## 1. Method Essence

Diverse IslandGA builds on the classic island model but removes the assumption that all islands are identical. Instead, it assigns each island a **continuous strategy position** along the exploration↔exploitation spectrum, and coordinates them through **adaptive migration** that fires only when an island stagnates. This keeps the population diverse and avoids the premature spread of a local optimum.

Core mechanisms:

| Concept | Role |
|---|---|
| **Island strategy spectrum** | `island_strategy_strength` controls how much islands differ (experience-reuse → novelty exploration) |
| **Adaptive migration** | `adaptive_migration` receives migrants only after an island stagnates |
| **Stagnation threshold** | `migration_stagnation_threshold` consecutive non-improving generations before migration is allowed |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add optima-cityu/llm4ad_next/diverse-island-ga@sha256:5b5d820eea6d2d41

The line at the top of this page pins the label git:20260908.f40b41b, 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_x6qkvjeqoquuwed4.svg)](https://markdownregistry.com/a/art_x6qkvjeqoquuwed4)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 8, 2026.

versioncommittedcommitsizeaudit
git:20260908.f40b41b latest2026-09-08 f40b41b 3,434 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 (3434 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

optima-cityu/llm4ad_next · 674 stars · license BSD-3-Clause · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_x6qkvjeqoquuwed4
GET https://markdownregistry.com/api/v1/resolve?ref=optima-cityu/llm4ad_next/diverse-island-ga
GET https://markdownregistry.com/api/v1/blob/5b5d820eea6d2d41f8ee8596387fe1feb09105cf66b6b04c7d9ae682fb35ea9d

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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