# Code Execution Mode

> Use this tool when you need to securely execute Python code in isolated environments with seamless integration to other servers. It solves problems related to secure code execution, resource management, and server integration, accepting Python code as input and providing TOON-format responses as output. Ideal for use cases requiring sandboxed code execution with network isolation and resource limits.

Canonical page: https://skillsregistry.net/skills/elusznik-code-execution-mode  
JSON: https://api.skillsregistry.net/v1/skills/elusznik-code-execution-mode

## Description

MCP server providing secure Python code execution in isolated containers while enabling seamless integration with other MCP servers through bridge architecture. Automatically discovers MCP servers from Claude Code and standard configuration locations, then executes Python code in rootless containers (Podman/Docker) with network isolation and resource limits while providing runtime access to discovered MCP servers through generated proxy objects. Features TOON-format response encoding for token efficiency, persistent MCP client sessions, automatic server metadata discovery with tool aliasing, and comprehensive sandbox security including memory limits, process restrictions, and temporary filesystem isolation.

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** cloud-infra
- **Updated:** 2026-05-22

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/elusznik-code-execution-mode)
- **Repository:** <https://github.com/elusznik/mcp-server-code-execution-mode>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "elusznik-code-execution-mode"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/elusznik-code-execution-mode` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/elusznik-code-execution-mode/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt