live-demo

live-demo is a skill for Claude Code from robium-ai/robium. It costs 15 tokens per session (737 once invoked), scanned A, original, MIT.

A runtime for hosting temporary, private sessions of a working robotics or physical-AI application. It manages separate visitor instances, protected access, startup and shutdown, budgets, and viewer connections.

In plain words
What is it for?
Use it to launch and monitor demos on Cloud Run, RunPod, or local Docker, diagnose startup and reconnect issues, connect Gradio, Lichtblick, or Foxglove viewers, and tear sessions down.
Why use it?
It handles the operational work needed to let people try an application remotely without sharing one instance or leaving paid compute running indefinitely.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the robium plugin — 70 skills, 1 agent, 6 hooks shipped together

Good fit Use it to launch and monitor demos on Cloud Run, RunPod, or local Docker, diagnose startup and reconnect issues, connect Gradio, Lichtblick, or Foxglove viewers, and tear sessions down.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/robium-ai/robium/live-demo
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.

Any agent
npx skills add robium-ai/robium --skill live-demo
Clone the repo
git clone --depth 1 https://github.com/robium-ai/robium

Made for: Claude Code.

Or install robium, the plugin that ships this one along with the rest of its 70 skills, 1 agent, 6 hooks.

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 live-demo

README.md
[![agentmods](https://agentmods.dev/badge/skills/robium-ai/robium/live-demo.svg)](https://agentmods.dev/skills/robium-ai/robium/live-demo)
Your own site
<a href="https://agentmods.dev/skills/robium-ai/robium/live-demo"><img src="https://agentmods.dev/badge/skills/robium-ai/robium/live-demo.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 737 The whole file, excluding the scripts and references it only reads on demand.
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.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00015 $0.00737
Opus 5 $0.00008 $0.00368
Sonnet 5 $0.00003 $0.00147
Haiku 4.5 $0.00002 $0.00074

Measured today against content hash 671f7dd46a7e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

live-demo 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 today.

The scan reads SKILL.md. This mod also ships 1 executable file (examples/demo_gateway.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/live-demo/SKILL.md · 72 lines

How it starts

The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Live demo

Separate the host-level control plane from the visitor's session data plane.

Start from a working app

  • Add hosted lifecycle only after the application's normal smoke test passes.
  • Define one real demo outcome, app-specific readiness, maximum session time, fleet capacity, cost boundary, and authoritative teardown.
  • Keep the app's runtime and demo.orchestrator facts in robium-app.yaml. The website/orchestrator derives its registry entry from that source; current production enablement remains website-owned.
  • Never allocate on catalog, overview, or idle live-page load. Starting paid capacity requires an explicit visitor action.
  • Keep public project copy, cards, articles, and media in app-publishing.

Keep the session boundary explicit

  • A host-level lifecycle layer enforces fleet limits and expiry and returns an instance ID plus connect host. Local Docker and RunPod allocate explicit resources; Cloud Run routes requests to a predeployed service.
  • The verified gateway example gives the first active claimant exclusive use and rejects concurrent foreign claims. Its browser-provided session ID is a coordination key, not authentication.
  • When access control matters, issue a signed or high-entropy, host-bound capability outside the instance and validate it on every lifecycle and viewer route. Affinity and hard-to-guess URLs remain routing conveniences.
  • Keep the orchestrator out of the viewer data path. The browser should talk directly to the gateway after allocation.
  • Read orchestrator-pattern.md when implementing provider drivers or local start/delete behavior. Read gateway-pattern.md when implementing claims, viewer transport, readiness, or shutdown.

Make lifecycle visible

  • Expose idle, allocating, booting, ready, reconnecting, stopping, expired, busy, budget-exhausted, and failed states honestly.
  • Keep the current instance while reconnecting; a transient poll failure must not allocate a replacement.
  • Show real boot messages, remaining time, capacity, and expected cold-start behavior. Avoid invented percentage progress.
  • Read session-ui.md for the shared browser state machine. Read viewers.md when choosing or embedding Gradio, Lichtblick, Foxglove, or a custom interaction surface.

Read the full file on GitHub · 72 lines

Files

What ships with it

7 files beside SKILL.md 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. today Changed · -142 lines · -158 tokens per session 671f7dd46a7e
  2. 5d ago First seen · 214 lines · 173 tokens per session scan A 734253f93d78

Subscribe to this mod's changes

live-demo is a skill published in the GitHub repository robium-ai/robium (9 stars, last pushed today), licensed MIT. It adds 15 tokens to every session and 737 once invoked, about $0.0001 per session on Opus 5. 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 2026-09-03.

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