Semgrep vs async-fixer
async-fixer is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑18.
Semgrep is an MCP server published by docker. Marketplaces we read that list it: 1 (Docker MCP Catalog). async-fixer is a plugin bundle for AI coding tools published by barnburner121. No marketplace we read lists it any more. As of our marketplace pass on 2026-10-19. 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 |  Semgrep | |
|---|---|---|
| Docker MCP Catalog | Listed Version: not stated No figure published Not marked · First seen |
Not listed |
| Community marketplace barnburner121/claude-plugin-marketplace | Not listed | Removed on 2026-10-18 Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 3 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 | Semgrep | async-fixerno longer listed · |
|---|---|---|
| Marketplaces that list it (differs) | 1 | 0 |
| Stars (GitHub) (differs) | No figure on GitHub | 3 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (mcp.semgrep.ai/mcp) | On your machine (@barnburner121/plugin-hub-mcp) |
| Transport (differs) | Streamable HTTP | Not stated |
| Tools it declares (differs) | 8 | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | Not a bundle | 2 |
| Licence (differs) | Apache-2.0 | MIT |
| Repository (differs) | Not stated | github.com/barnburner121/claude-plugin-marketplace |
| Changes in the last 7 days (differs) | 0 | 4 |
| First seen (differs) | 2026-10-11 | 2026-10-14 |
| Endpoint at the last check (differs) | Responded 5 days ago, requires a key | no remote endpoint we check |
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 async-fixer
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Systematically debug issues with step-by-step troubleshooting approaches.
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Prevent, catch, and verify architectural violations while Claude Code works.
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Debugging specialist for errors, test failures, and unexpected behavior. Use proactively when encountering any issues.
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Ask Claude Code to help you debug an issue
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Predicts where JavaScript and TypeScript code will fail at runtime, for coding agents.
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Plugin description Code quality review plugin based on Frontend Fundamentals 4 principles (readability, predictability, cohesion, coupling). Supports React and Angular with…
What each says it does
Semgrep
MCP server for using Semgrep to scan code for security vulnerabilities.
async-fixer
Detect async/await anti-patterns and race conditions
How to run each
Semgrep As a remote MCP server
claude mcp add --transport http semgrep https://mcp.semgrep.ai/mcpasync-fixer
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Semgrep has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of async-fixer publish no list of tools, so we do not compare tools.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: Semgrep · What it can do: async-fixer · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.