llm-application-dev vs io.github.kody-w/rapp-agent-builder
llm-application-dev is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑24.
llm-application-dev is a plugin bundle for AI coding tools published by Alex Kopylov. No marketplace we read lists it any more. io.github.kody-w/rapp-agent-builder is an MCP server published by kody-w. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-11-12. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  io.github.kody-w/rapp-agent-builder | |
|---|---|---|
| Community marketplace alex-kopylov/zweihander | Removed on 2026-10-24 Version: 0.2.3 Forks (GitHub): 0 Stars (GitHub): 8 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.0 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 | llm-application-devno longer listed · | io.github.kody-w/rapp-agent-builder |
|---|---|---|
| Marketplaces that list it (differs) | 0 | 1 |
| Stars (GitHub) (differs) | 8 | 0 |
| Forks (GitHub) | 0 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (rapp-agent-builder.azurewebsites.net/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 2 | Not a bundle |
| Licence | Not stated | Not stated |
| Repository (differs) | github.com/alex-kopylov/zweihander | github.com/kody-w/rapp-chatgpt |
| Changes in the last 7 days | 0 | 0 |
| First seen (differs) | 2026-10-15 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 18 h ago |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of llm-application-dev
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Langroid multi-agent framework patterns and best practices
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LLM application development, prompt engineering, and AI assistant optimization
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LLM application development, prompt engineering, and AI assistant optimization
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llm-applications
Agent frameworks, prompt engineering and structured generation.
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Design patterns for the Langroid multi-agent LLM framework, with a skill to add new patterns as you learn them
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AI / LLM application engineering expertise. Ships the ai-engineer agent plus the in-house ai-app-templates skill and 1 vendored skill (senior-prompt-engineer) for production LLM…
What each says it does
llm-application-dev
LLM application design, agent pattern selection, and schema-guided reasoning patterns.
io.github.kody-w/rapp-agent-builder
Turn an idea or meeting transcript into a working single-file AI agent, check it, use it right away.
How to run each
llm-application-dev
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
io.github.kody-w/rapp-agent-builder As a remote MCP server
claude mcp add --transport http rapp-agent-builder https://rapp-agent-builder.azurewebsites.net/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only io.github.kody-w/rapp-agent-builder has a remote endpoint we check. How we check endpoints
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: llm-application-dev · What it can do: io.github.kody-w/rapp-agent-builder · Compare two other plugins
Data comes from public marketplace files in GitHub repositories of their authors. 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.