arato-simulate vs tailtest
arato-simulate is a plugin bundle for AI coding tools published by aratoai. Marketplaces we read that list it: 1 (Community GitHub marketplaces). tailtest is a plugin bundle for AI coding tools published by avansaber. Marketplaces we read that list it: 2 (Claude Code: claude-plugins-community, Community GitHub marketplaces). As of our marketplace pass on 2026-10-15. 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 |  arato-simulate |  tailtest |
|---|---|---|
| Community marketplace aratoai/claude-code-plugin | Not seen in the last pass Version: not stated Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 3.14.0 Forks (GitHub): 0 Stars (GitHub): 11 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 | arato-simulate | tailtest |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 0 (worse) | 11 (better) |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (simulate.arato.ai/mcp) | Installs as a plugin bundle |
| Transport (differs) | Streamable HTTP | Not stated |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | Not published | 5 |
| Parts of the bundle (differs) | 7 | 10 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/aratoai/claude-code-plugin | github.com/avansaber/tailtest |
| Changes in the last 7 days | 2 | 2 |
| First seen (differs) | 2026-10-14 | 2026-10-12 |
| Endpoint at the last check (differs) | not checked yet | no remote endpoint we check |
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
arato-simulate
Test your AI applications from Claude Code using Arato Simulate
tailtest
tailtest automatically generates and runs tests every time Claude Code edits a file. No commands, no configuration, no reminders needed. It hooks into Claude's file write event, detects your language and test runner automatically, generates production-like test scenarios for the code that was just written, and runs them immediately. If everything passes, it stays silent. If something breaks, you see it in the same session while the context is still fresh. Supports Python (pytest), TypeScript and JavaScript (vitest, jest), Go, Rust, Ruby, Java, and PHP. Works on new projects and existing codebases. On first run, a ramp-up scan queues your existing untested files for gradual background coverage.
How to run each
arato-simulate As a Claude Code plugin
/plugin marketplace add aratoai/claude-code-plugin
/plugin install arato-simulate@arato-pluginstailtest As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install tailtest@claude-communityCommands 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: arato-simulate · What it can do: tailtest · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.