| FMRS | 54 / 100 · D | 79 / 100 · B |
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| Reliability | 7 / 20 | 12 / 20 |
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| Security and permissions | 6 / 20 | 16 / 20 |
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| Maintenance | 12 / 20 | 18 / 20 |
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| Documentation | 15 / 20 | 18 / 20 |
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| Setup experience | 14 / 20 | 15 / 20 |
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| Best for | - Developers who want AI assistants to directly control terminal and file system.
- Users who need enhanced code editing, automation, and codebase exploration within MCP clients like Claude Desktop.
- Scenarios requiring handling of complex file formats like Excel, PDF, DOCX.
| - Developers auditing NPM dependencies within AI workflows
- Teams performing supply chain security assessments
- Users of Claude Desktop, Cursor, or VS Code
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| Not for | - Users needing a fully sandboxed environment (unless using Docker installation).
- Security-sensitive environments, as terminal commands can bypass directory restrictions.
- Users who don't need terminal control and only basic file operations.
| - Projects outside the NPM ecosystem (e.g., pure Python/Go)
- Environments without network access to deps.dev, OSV.dev, and the npm registry
- Scenarios requiring maintenance by an official upstream vendor
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| Required permissions | - Filesystem read/write permissions, including terminal commands that can access files outside allowedDirectories.
- Ability to execute arbitrary terminal commands (subject to blockedCommands).
- Manage processes (start, interact, terminate).
- Access network to fetch URL content (read_file).
| - Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
- Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
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| Risks and side effects | - Terminal commands can access files outside allowedDirectories, posing a security risk.
- Command blocklist may be bypassed via symlinks, command substitution, or absolute paths.
- Configuration changes should be made in a separate chat window to avoid accidental modification by Claude.
- Potential risk to host system if not using Docker isolation.
| - Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
- Depends on availability and accuracy of external services
- Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
- Third-party open source project, not officially maintained by NPM or Anthropic
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| Supported clients | Claude Desktop, Cursor, Windsurf, VS Code / GitHub Copilot, Cline, Roo Code, Claude Code, Trae, Kiro, Codex, JetBrains IDEs, Gemini CLI, Augment Code, Qwen Code | Claude Desktop, VS Code, Cursor |
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| Tools | 25 | 19 |
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