prompt-improver vs prompt-engineering-skills
prompt-improver is a plugin bundle for AI coding tools published by severity1. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). prompt-engineering-skills is a plugin bundle for AI coding tools published by tofukyung. Marketplaces we read that list it: 1 (Community GitHub marketplaces). As of our marketplace pass on 2026-11-12. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  prompt-improver | |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.6.1 Forks (GitHub): 157 Stars (GitHub): 1 969 Not marked · First seen |
Not listed |
| Community marketplace treylom/prompt-engineering-skills | Not listed | Listed Version: 3.5.1 Forks (GitHub): 33 Stars (GitHub): 195 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | prompt-improver | prompt-engineering-skills |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 969 (better) | 195 (worse) |
| Forks (GitHub) (differs) | 157 (better) | 33 (worse) |
| Last release (differs) | Not published | 2026-11-11 |
| Where it runs | Installs as a plugin bundle | Installs as a plugin bundle |
| Transport | Not stated | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 3 | Not published |
| Parts of the bundle (differs) | 4 | 13 |
| Licence | MIT | MIT |
| Repository (differs) | github.com/severity1/claude-code-prompt-improver | github.com/treylom/prompt-engineering-skills |
| Changes in the last 7 days (differs) | 0 | 4 |
| First seen (differs) | 2026-10-11 | 2026-11-09 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
prompt-improver
Intelligent prompt optimization using skill-based architecture. Enriches vague prompts with research-based clarifying questions before Claude Code executes them
prompt-engineering-skills
아이디어를 실행 가능한 프롬프트로 정리해주는 도구 — /prompt v3.5.1 + 모델별 최적화 전략 스킬
How to run each
prompt-improver As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install prompt-improver@claude-communityprompt-engineering-skills As a Claude Code plugin
/plugin marketplace add treylom/prompt-engineering-skills
/plugin install prompt-engineering-skills@prompt-engineering-skillsCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: prompt-improver · What it can do: prompt-engineering-skills · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.