Horosa 星阙 — 术数 / 占星 vs Synthflow
Horosa 星阙 — 术数 / 占星 is a plugin bundle for AI coding tools published by Horace Maxwell. Marketplaces we read that list it: 1 (Community GitHub marketplaces). Synthflow is a plugin bundle for AI coding tools published by SynthFlowAI. Marketplaces we read that list it: 3 (Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community). As of our marketplace pass on 2026-10-22. 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 |  Synthflow | |
|---|---|---|
| Community marketplace horace-maxwell/horosa-skill | Listed Version: 0.41.2 Forks (GitHub): 85 Stars (GitHub): 471 Not marked · First seen |
Not listed |
| Claude Code: claude-plugins-official | Not listed | Listed Version: 1.3.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
| Claude: knowledge-work-plugins | Not listed | Listed Version: 1.3.0 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
| Claude Code: claude-plugins-community | Not listed | Listed Version: 1.3.0 Forks (GitHub): 0 Stars (GitHub): 0 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 | Horosa 星阙 — 术数 / 占星 | Synthflow |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 3 (better) |
| Stars (GitHub) (differs) | 471 (better) | 0 (worse) |
| Forks (GitHub) (differs) | 85 (better) | 0 (worse) |
| Last release (differs) | 2026-10-21 | Not published |
| 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 (differs) | 6, secrets among them: 1 | Not published |
| Parts of the bundle (differs) | 2 | 4 |
| Licence (differs) | AGPL-3.0-only | MIT |
| Repository (differs) | github.com/horace-maxwell/horosa-skill | github.com/synthflowai/anthropicplugin |
| Changes in the last 7 days (differs) | 3 | 0 |
| First seen (differs) | 2026-10-21 | 2026-10-11 |
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
Horosa 星阙 — 术数 / 占星
110 local Horosa (星阙) technique tools over MCP + the horosa-agent skill (clarify-before-call gate, export-snapshot reading). Requires the offline runtime once: `uv run --directory <plugin dir>/horosa-skill horosa-skill install` (plugin dir = ~/.claude/plugins/cache/horosa-skill/horosa/<version>) (any `runtime.not_installed` error prints this command with the real path).
Synthflow
Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search connector.
How to run each
Horosa 星阙 — 术数 / 占星 As a Claude Code plugin
/plugin marketplace add horace-maxwell/horosa-skill
/plugin install horosa@horosa-skillSynthflow As a Claude Code plugin
/plugin install synthflow@claude-plugins-officialCommands 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
The marketplaces of Synthflow publish no settings it asks for, so we do not compare settings.
What it can do: Horosa 星阙 — 术数 / 占星 · What it can do: Synthflow · 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-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. 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.