What is repl-nix-workspace?

A local MCP server that provides a workspace for running Python-based read–evaluate–print loops (REPLs), where code can be entered and results seen immediately.

Use it when an AI assistant needs access to the configured local REPL workspace. Its exact commands and supported tasks are not described here.

It gives an MCP client a configured way to work with a local Python workspace. The provided information does not specify more detailed operations.

repl-nix-workspace — MCP server for Claude Code and Codex by dOpensource: A local MCP server that provides a workspace for…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/dopensource/dsiprouter-mcp/repl-nix-workspace

Clone the repo

git clone --depth 1 https://github.com/dOpensource/dsiprouter-mcp

Made for: Claude Code, Codex, Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/dopensource/dsiprouter-mcp/repl-nix-workspace.svg)](https://agentmods.dev/mcp/dopensource/dsiprouter-mcp/repl-nix-workspace)

Your own site

<a href="https://agentmods.dev/mcp/dopensource/dsiprouter-mcp/repl-nix-workspace"><img src="https://agentmods.dev/badge/mcp/dopensource/dsiprouter-mcp/repl-nix-workspace.svg" alt="Measured on agentmods" height="20"></a>

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin 100% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

repl-nix-workspace scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to repl-nix-workspace — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

listed in the official MCP registry · 8 lines

What it actually says

{ "repl-nix-workspace": { "command": "uvx", "args": [ "repl-nix-workspace" ] } }

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

4d ago First seen · 8 lines scan A 91fad0cce204

Subscribe to this mod's changes

repl-nix-workspace is an MCP server published in the GitHub repository dOpensource/dsiprouter-mcp (0 stars, last pushed 4mo ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. It is 100% identical to repl-nix-workspace, differing in 0 lines, and is treated as a copy.

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