docker-sandboxes-mcp-gateway

82 / 100 · Low risk

Fine to try. Some of what it can do is expected: a devops skill usually runs commands, installs tools and uses cloud credentials.

By docker/skills (GitHub) · devops · 627 stars · scanned at commit 3b6fe59

Use this skill when giving an agent in a local Docker Sandbox (sbx) access to MCP servers, even if the user just says "my sandboxed Claude can't see the GitHub tools", "add Notion MCP to my sandbox", or "take this MCP server away from the sandbox". Covers sbx mcp add/load/unload/ls/rm/auth/inspect, static vs dynamic mode, --static-mcp, host-side execution, OAuth and header secrets, untrusted URLs, and removal order.

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a devops skill.

Found in 3 places.

skills/docker-sandboxes-mcp-gateway/SKILL.md, line 46sbx mcp add notion --url https://mcp.notion.com/mcp
skills/docker-sandboxes-mcp-gateway/SKILL.md, line 62sbx mcp add linear --url https://mcp.linear.app/mcp
skills/docker-sandboxes-mcp-gateway/SKILL.md, line 80sbx mcp add acme --url https://mcp.acme.com/mcp \

Downloads and installs other software

The author does not mention this. Expected for a devops skill.

Found in 1 place.

skills/docker-sandboxes-mcp-gateway/references/sbx-mcp-reference.md, line 25| `--command`, `--args` | Explicit host stdio command and arguments (for example `--command npx --args @modelcontextprotocol/server-github`). |

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'docker-sandboxes-mcp-gateway' ] || [ -L ~/.agents/skills/'docker-sandboxes-mcp-gateway' ]; then echo 'A skill folder named docker-sandboxes-mcp-gateway already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/docker/skills' "$d" && git -C "$d" checkout --quiet '3b6fe59c63532138756dae8bea1f62d40b464b62' -- 'skills/docker-sandboxes-mcp-gateway' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/docker-sandboxes-mcp-gateway' ~/.agents/skills/'docker-sandboxes-mcp-gateway' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'docker-sandboxes-mcp-gateway' ~/.claude/skills/'docker-sandboxes-mcp-gateway' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-12	`3b6fe59`	82