Borrowing it
Nothing to install: this file belongs to umbraco/Umbraco.Automate. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/umbraco/Umbraco.Automate/v18/dev/.claude/skills/demo-site-management/SKILL.mdgit clone --depth 1 https://github.com/umbraco/Umbraco.AutomateWrote 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.
[](https://agentmods.dev/skills/umbraco/umbraco.automate/demo-site-management)<a href="https://agentmods.dev/skills/umbraco/umbraco.automate/demo-site-management"><img src="https://agentmods.dev/badge/skills/umbraco/umbraco.automate/demo-site-management/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.
<a href="https://agentmods.dev/skills/umbraco/umbraco.automate/demo-site-management"><img src="https://agentmods.dev/badge/skills/umbraco/umbraco.automate/demo-site-management.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00047 | $0.01956 |
| Opus 5 | $0.00023 | $0.00978 |
| Sonnet 5 | $0.00009 | $0.00391 |
| Haiku 4.5 | $0.00005 | $0.00196 |
Grade A, and why
demo-site-management scanned grade A with 2 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 12d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
**Using curl** (PowerShell on Windows): Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
import { execSync } from "child_process"; How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Demo Site Management
Manage the Umbraco.Automate demo site with automatic port discovery via named pipes.
Command: $ARGUMENTS
Execute the requested demo site operation.
Available commands
- start: Start demo site with DemoSite-Claude profile on dynamic port
- stop: Stop the running demo site
- status: Check if site is running and show port/pipe info
- restart: Stop and restart the demo site
- open: Open the demo site in default browser (discovers port automatically)
Current Environment
- Working directory: !
pwd - Git branch: !
git branch --show-current 2>/dev/null || echo "not in git repo" - Background tasks: !
echo "Check with /tasks command for active background tasks"
Implementation Guide
For "start"
- Check if already running using multi-method detection:
- Try querying site address endpoint via named pipe (see "Query site address via named pipe" section)
- Check if background tasks exist with "DemoSite" in description
- If running, report and exit
- Detect demo site path:
- Read
Directory.Packages.propsand extract the major from theUmbraco.Cms.Coreversion (range lower bound or fixed, e.g.[18.0.0, …)or18.0.0→18) - Demo site path:
demos/v{major}/Umbraco.Automate.DemoSite
- Read
- If not running, start in background:
cd demos/v{major}/Umbraco.Automate.DemoSite && dotnet run --launch-profile DemoSite-Claude - Wait 15-20 seconds for startup
- Query site address endpoint via named pipe to get port and pipe name (see "Query site address via named pipe" section)
- Report:
- Task ID for later stopping (save this for future commands)
- Port number (from site address endpoint)
- Pipe name (format: umbraco.demosite.{branch-or-worktree})
- Site URL
For "stop"
-
Find background tasks related to demo site:
- Look for tasks with "DemoSite" or "demo-site" in name
- Extract task ID from task list
-
If task found:
- Use TaskStop with the task ID to stop gracefully
- Wait 2-3 seconds for cleanup
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.
- 12d ago First seen · 208 lines · 47 tokens per session scan A 723e5082d84a
demo-site-management is a skill published in the GitHub repository umbraco/Umbraco.Automate (5 stars, last pushed yesterday), licensed MIT. It adds 47 tokens to every session and 1,956 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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