python-repl

python-repl is a plugin for Claude Code from iota-uz/repl-mcp. Its manifest loads nothing; the 1 skill, 1 hook, 1 MCP server it bundles cost 40 tokens per session together, scanned A, original, MIT.

A persistent Python workspace that keeps state between commands and can also connect to shell commands and other MCP servers. Python is a programming language commonly used for scripts and data work.

In plain words
What is it for?
Running repeated Python experiments, using top-level await, composing shell commands, and connecting Python to project or plugin services.
Why use it?
It avoids restarting Python for every command, while preserving variables and helping isolate crashes or interrupt long-running work.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest.

Good fit Running repeated Python experiments, using top-level await, composing shell commands, and connecting Python to project or plugin services.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add iota-uz/repl-mcp
/plugin install python-repl
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.

Clone the repo
git clone --depth 1 https://github.com/iota-uz/repl-mcp

Made for: Claude Code.

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.

agentmods badge for python-repl

README.md
[![agentmods](https://agentmods.dev/badge/plugins/iota-uz/repl-mcp/repl-mcp/github.svg)](https://agentmods.dev/plugins/iota-uz/repl-mcp/repl-mcp)
Your own site
<a href="https://agentmods.dev/plugins/iota-uz/repl-mcp/repl-mcp"><img src="https://agentmods.dev/badge/plugins/iota-uz/repl-mcp/repl-mcp/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for python-repl

Your own site · 80×15
<a href="https://agentmods.dev/plugins/iota-uz/repl-mcp/repl-mcp"><img src="https://agentmods.dev/badge/plugins/iota-uz/repl-mcp/repl-mcp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 1 skill, 1 hook, 1 MCP server cost 40 tokens a session between them.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

python-repl 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 20d 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.

.claude-plugin/plugin.json · 33 lines

What it actually says

{
  "name": "python-repl",
  "displayName": "Python REPL",
  "version": "3.1.0",
  "description": "Native Rust MCP server with a persistent Python worker, bounded output, cancellation and crash recovery. Full filesystem access, top-level await, sh() and an explicitly configured MCP bridge.",
  "author": {
    "name": "iota-uz",
    "url": "https://github.com/iota-uz"
  },
  "repository": "https://github.com/iota-uz/repl-mcp",
  "license": "MIT",
  "keywords": [
    "python",
    "repl",
    "shell",
    "mcp",
    "codebase-analysis"
  ],
  "mcpServers": {
    "python-repl": {
      "type": "stdio",
      "command": "sh",
      "args": [
        "-c",
        "#!/bin/sh\n# Launch the published native wheel; retain the caller's working directory.\nset -eu\nversion=3.1.0\nos=$(uname -s)\narch=$(uname -m)\ncase \"$os:$arch\" in\n  Darwin:arm64) platform=macosx_11_0_arm64 ;;\n  Darwin:x86_64) platform=macosx_11_0_x86_64 ;;\n  Linux:x86_64) platform=manylinux_2_28_x86_64 ;;\n  *)\n    printf 'repl-mcp: unsupported host %s/%s; use macOS arm64/x86_64 or Linux x86_64 (glibc 2.28+).\\n' \"$os\" \"$arch\" >&2\n    exit 1\n    ;;\nesac\nif ! command -v uvx >/dev/null 2>&1; then\n  printf 'repl-mcp: uvx is required; install uv from https://docs.astral.sh/uv/getting-started/installation/ or register an installed repl-mcp executable.\\n' >&2\n  exit 1\nfi\nwheel=\"https://github.com/iota-uz/repl-mcp/releases/download/v${version}/repl_mcp-${version}-py3-none-${platform}.whl\"\nexec uvx --from \"$wheel\" repl-mcp \"$@\"\n",
        "repl-mcp-plugin",
        "--transport",
        "stdio"
      ]
    }
  }
}
Contents

What it installs

The manifest is a name and a version. 1 skill, 1 hook, 1 MCP server travel with it, and installing the plugin installs all of them — 40 tokens a session between them. Each is measured on its own page, and each can be installed alone.

Files

What ships with it

1 file beside plugin.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 20d ago Changed 9ca7f7166b04
  2. 1mo ago Changed 1c438b10f7ad
  3. 1mo ago First seen · 33 lines scan A 64b02f9e1b55

Subscribe to this mod's changes

python-repl is a plugin published in the GitHub repository iota-uz/repl-mcp (3 stars, last pushed 20d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.