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 | $0.00050 | $0.01882 |
| Opus 5.5 | $0.00020 | $0.00753 |
| Sonnet 5.5 | $0.00010 | $0.00376 |
| Haiku 4.5 | $0.00005 | $0.00188 |
Grade A, and why
demo-site-management 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 29d 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.
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.
How it starts
The opening of the file, as written. The whole thing — 152 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. Each worktree gets its own stable dev port, assigned once by Umbraco.Community.WorktreeDevPort and stored in that worktree's own git config — no named pipe, socket, or discovery endpoint to query.
Command: $ARGUMENTS
Execute the requested demo site operation.
Available commands
- start: Start demo site with the DemoSite profile
- stop: Stop the running demo site
- status: Check if site is running and show its port
- restart: Stop and restart the demo site
- open: Open the demo site in default browser
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 reading the port (see "Get the worktree's dev port" section) and connecting to it
- 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
- Ensure the frontend assets exist (a fresh clone or worktree has none, and the Automate section then renders blank with no error):
- Run
scripts/build-frontend.ps1(Windows) orbash scripts/build-frontend.sh(macOS/Linux) from the repo root - On Windows, run it with the PowerShell tool, not
pwsh ...through Bash: a worktree-isolated session's Bash tool refuses to shell out topwsh - Safe to run every start: it is a no-op when both
wwwrootfolders are already populated - On a fresh worktree it runs
npm ci+npm run buildat the repo root and can take a few minutes - allow a long timeout and never run npm by hand instead - It handles the Node version itself (reads
engines.node, and prepends an installed nvm-for-windows version to PATH for that process only - never runnvm use) - If it exits non-zero, stop and report its message: starting the site anyway gives a blank section with no error
- Run
- If not running, start in background:
cd demos/v{major}/Umbraco.Automate.DemoSite && dotnet run --launch-profile DemoSite - Wait 15-20 seconds for startup (the package picks a free port on first run in this worktree, or reuses the one it already picked)
- Read the port (see "Get the worktree's dev port" section)
- Report:
- Task ID for later stopping (save this for future commands)
- Port number
- Site URL (
https://127.0.0.1:<port>)
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.
- 29d ago Changed · +1 lines dc10e4bbfb1c
- 1mo ago Changed · -72 lines · +3 tokens per session a51366cfdd18
- 1mo ago Changed · +15 lines 320e19fc846a
- 2mo 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 2d ago), licensed MIT. It adds 50 tokens to every session and 1,882 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-31.
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