rex vs Sunstone Weave: Local Semantic Code Search
rex is a plugin bundle for AI coding tools published by vykhovanets. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Sunstone Weave: Local Semantic Code Search is an MCP server published by space-bacon. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-18. 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 |  rex |   Sunstone Weave: Local Semantic Code Search |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 0.1.12 Forks (GitHub): 0 Stars (GitHub): 1 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.2 Downloads/month (npm): 703 Downloads/week (npm): 112 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 | rex | Sunstone Weave: Local Semantic Code Search |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 1 (better) | 0 (worse) |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (rex-index) | On your machine (blackwindow-weave-mcp) |
| Transport (differs) | Not stated | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 0 |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/vykhovanets/rex | github.com/space-bacon/blackwindow-weave-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 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
rex
Rex provides sub-second Python symbol search across all installed .venv packages. Three tools — rex_find, rex_show, rex_members — let Claude look up function signatures, docstrings, class members, and file locations instantly, without web search or grepping through source files. Results are grounded in the actually installed version — no outdated docs, no hallucinated parameters. Auto-indexes on first use and re-indexes incrementally when packages change. Read-only by design.
Sunstone Weave: Local Semantic Code Search
Semantic search over local folders of code and docs, with a code-search encoder running on your CPU.
How to run each
rex As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install rex@claude-communitySunstone Weave: Local Semantic Code Search As a local MCP server: npm package
claude mcp add --transport stdio blackwindow-weave-mcp -- npx -y blackwindow-weave-mcpCommands 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 rex publish no settings it asks for, so we do not compare settings.
What it can do: rex · What it can do: Sunstone Weave: Local Semantic Code Search · 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 the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.