Fauxnix vs Sage

In-depth architectural comparison of the Fauxnix and Sage MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Fauxnix when:

• You need dedicated capabilities in the Command Line domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Fauxnix Details

Choose Sage when:

• You need dedicated capabilities in the Command Line domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Local shell command wrapper, Compressed terminal summaries, Local command history and retry context.

Explore Sage Details

Feature & Specification Comparison

Specification	Fauxnix 20000419 Command Line	Sage PsYcGoD Command Line
Summary	bash for AI agents on Windows via deterministic bash→PowerShell translation — no WSL, VM, or bash toolchain. MCP bash tool with GNU-style output, bash-style errors, coreutils exit codes, session-persisted cwd/env across calls, and per-file UTF-8/GBK sniffing (GBK files grep correctly, unlike Git Bash). Unsupported bash constructs fail loudly with the construct named; native commands (git/node/npm) pass through with argv quoting. npm install -g fauxnix-cli; verified with Claude Code, Codex, OpenCode, Kimi Code and Qwen Code.	Local-first CLI and MCP wrapper for AI coding agents. Routes shell commands through sage run --, stores command history locally, and returns compressed terminal output to reduce context noise.
Category & Scope

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "20000419-fauxnix": {
      "command": "npx",
      "args": [
        "-y",
        "20000419-fauxnix"
      ]
    }
  }
}

{
  "mcpServers": {
    "psycgod-sage": {
      "command": "npx",
      "args": [
        "-y",
        "psycgod-sage"
      ]
    }
  }
}

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