First-run onboarding for the s&box Claude Bridge. Run when a user first connects the bridge or asks how to get started — it verifies the connection, detects their installed libraries, recommends what to build with, and points them to help + feedback. Keep it warm and brief.
Instalación
Instalar con Codex o Claude Copia este prompt, pégalo en Codex, Claude u otro asistente, y deja que revise la página de la skill y la instale por ti.
First-run onboarding for the s&box Claude Bridge. Run when a user first connects the bridge or asks how to get started — it verifies the connection, detects their installed libraries, recommends what to build with, and points them to help + feedback. Keep it warm and brief.
s&box Bridge — Setup & Welcome
A short, friendly orientation for someone who just connected the bridge. A few beats, not an interrogation — and adapt to what the user says. If they already know what they want, skip the tour and just build.
When to run
It's clearly the user's first session with the bridge, or they just connected it.
They ask "how do I start?", "what can this do?", or run /sbox-setup.
The beats
1. Welcome
👋 Thanks for using the s&box Claude Bridge — let's get you oriented in about 30 seconds.
2. Confirm the native server is live
The editor ships its own MCP server, on by default at http://127.0.0.1:7269/mcp. Quickest check: call mcp__sbox__search_tools (or list_toolsets) — if it answers, you're connected. (A raw initialize/list_toolsets probe against the endpoint proves the same thing.) Not registered with Claude Code yet? One line:
claude mcp add --transport http sbox http://127.0.0.1:7269/mcp
Recommended second entry — the lifeline keeps read_log / get_compile_errors / docs search working when the editor is down (the native server dies with the editor):
claude mcp add sbox-lifeline -- npx -y sbox-mcp-server@2 --lifeline
If the endpoint doesn't answer, stop and help fix it first:
Check Editor → Preferences → MCP Server — it should be on (it's the default), port 7269.
Editor log says [MCP] Couldn't start MCP server on port 7269? A stale HTTP.sys registration from a dying editor instance is holding the port — restart the editor once the stale process exits.
Make sure s&box is running with the claudebridge library installed — that's what puts the bridge tools on the server.
3. Detect their libraries
Call list_libraries (via call_tool) and summarize in plain language. Call out the useful ones:
A character controller — fish.scc (Shrimple) or facepunch.playercontroller → "I can wire up player movement with this, no code from scratch."
4. Recommend a first move
Based on what's installed and whether the scene is empty (peek with get_scene_hierarchy if useful), offer 2–3 concrete starts, e.g.:
"Spawn a controllable player" — using an installed controller if there is one.
"Block out a test scene — ground, a light or two, a few props."
"Set the mood — apply_atmosphere, fog, a skybox."
5. Help + feedback
Troubleshooting: I can read my own errors (read_log, get_compile_errors — they live on the lifeline server, so they work even when the editor is down), and there's a full TROUBLESHOOTING.md. Just ask me here anytime — that's what I'm for.
Use capture_view (or its alias screenshot_from) to show results framed on what you changed — take_screenshot is the main camera's view (the player's view in play mode), so it may not be aimed at it. Screenshots come back inline in the tool result — just look at the returned image.
This is a guide, not a script. Read the room: a returning power user doesn't need the welcome.
