Fallow MCP Server
Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.
Fallow is an open-source mcp server by fallow-rs, written mainly in Rust, with 5,287 GitHub stars and the MIT license. Its code was last updated Nov 1, 2026. The latest npm release is fallow 3.43.1, published Nov 14, 2026, with 2,514,301 downloads last week.
Scan summary: scanned Nov 5, 2026 at commit 1514a7f. Seen able to run shell commands, read environment and secrets, connect to the internet. 2 published advisories for its package. Scan policy
How to install Fallow
Built from the start command in the project's README: npx --yes --package fallow fallow-mcp. Check the README for required keys or settings.
claude mcp add fallow -- npx --yes --package fallow fallow-mcp{
"mcpServers": {
"fallow": {
"command": "npx",
"args": [
"--yes",
"--package",
"fallow",
"fallow-mcp"
]
}
}
}{
"mcpServers": {
"fallow": {
"command": "npx",
"args": [
"--yes",
"--package",
"fallow",
"fallow-mcp"
]
}
}
}code --add-mcp '{"name":"fallow","command":"npx","args":["--yes","--package","fallow","fallow-mcp"]}'What Fallow can touch
- Seen in this scan, either in the code or while it ran.Run shell commandsFound in the code by our scan
- Our checks did not find this. The tool may still do it.Run dynamic codeNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or write filesNot seen in this scan
- Seen in this scan, either in the code or while it ran.Read environment and secretsFound in the code by our scan
- Our checks did not find this. The tool may still do it.Control a web browserNot seen in this scan
- Our checks did not find this. The tool may still do it.Connect to databasesNot seen in this scan
- Our checks did not find this. The tool may still do it.Read or send messagesNot seen in this scan
- Our checks did not find this. The tool may still do it.Touch money or tradingNot seen in this scan
- Seen in this scan, either in the code or while it ran.Connect to the internetFound in the code by our scan
"Not seen" means our checks did not find it, and the tool may still do it. Covers commit 1514a7f, Nov 5, 2026. See the scan policy.
Before you install Fallow
AgenticMart scanned Fallow on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What it can access
- An MCP server is a program your AI app starts and talks to. A local one runs with your user's permissions: it can see the files, environment variables and network your account can.
- Based on its description and topics, it likely needs to use a code-hosting token (GitHub/GitLab).
Before you install
- Use a fine-grained token limited to the repos it needs.
- Pin the version you reviewed instead of always installing the latest release.
- Read the tool list or scripts before the first run, and keep approval prompts on for actions that write, send or delete.
- Maintained by fallow-rs on GitHub, 5,287 stars and 192 forks. Popularity is not proof of safety.
- Last code change: Nov 1, 2026.
- Open-source license: MIT.
Published advisories for fallow
From the OSV database, for this npm package. Check that your installed version is past any fix.
- GHSA-h4fr-cmh5-qr62Fallow: A `.*` glob segment let an analyzed repository make Fallow test paths in the parent of the project rootFixed in 3.34.0.
- CVE-2026-115569Fallow: Jest and Vitest `projects` entries let an analyzed repository make Fallow read files outside the project rootFixed in 3.34.0.
Fallow is an open-source mcp server by fallow-rs, written mainly in Rust. Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.
At a glance
- Stars
- 5.3k
- Forks
- 192
- Language
- Rust
- License
- MIT
- Created
- Mar 2026
- Last update
- Nov 1, 2026
- Type
- MCP Server
- Price
- Free
Topics
Questions about Fallow
What is Fallow?
Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.
Who maintains Fallow?
Fallow is maintained by fallow-rs on GitHub (fallow-rs/fallow). AgenticMart lists it from public repository data.
Is Fallow safe to use?
AgenticMart scanned Fallow on Nov 5, 2026 with automated checks for hidden code, known-malicious packages, leaked secrets and vulnerable dependencies. The result covers one commit under our scan policy, so review what access you give it and check any advisories shown here.
What license does Fallow use?
It is published under the MIT license.
Fallow alternatives
View more →Similar mcp servers in Coding Agents, ranked by GitHub stars. Compare licence, recent activity and scan status before you choose.
| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
| Fallow (this page) fallow-rs | 5.3k | MIT | Nov 1, 2026 | Scanned, no flagged issues |
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| MCP For Beginners microsoft | 18k | MIT | Oct 30, 2026 | Scanned, no flagged issues |