nushell-mcp

Small terminal MCP server to expose shell utilities.

→ zaynram/nushell-mcp · listed on github_topic

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// key findings

✅

12 tools verified — handlers match their declared behaviour

4 read-only tools verified — handlers contain no write/delete/exec

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configNUSHELL_MCP_BASH_PATH— (auto-probe: WSL → Git Bash → bash) Override the bash runner used by nu_exec's bashEnv.

configNUSHELL_MCP_CONFIG_PATH

configNUSHELL_MCP_DEBUG_DISPATCH

configNUSHELL_MCP_MAX_REPLS— 10 Cap on simultaneous REPL buckets. nu_repl_spawn errors past this.

configNUSHELL_MCP_NU_PATH— first nu on PATH Absolute path to the nu executable.

configNUSHELL_MCP_TIMEOUT_MS— 30000 Default per-call timeout for nu_exec; the tool's timeoutMs argument overrides it per call.

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/zaynram-nushell-mcp-14y2v7)](https://m8ven.ai/mcp/zaynram-nushell-mcp-14y2v7)

commit: ef3bc6e07fff31c72c4422e317f61721d7d59f2b

code hash: 76f0cd08c05d5f67d1ad805d6e73866f38c30b43c20581a9f89a24dc64cec09a

verified: 7/9/2026, 10:18:12 AM

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