Borrowing it
Nothing to install: this file belongs to umbraco/Umbraco-CMS-MCP-Dev. 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-CMS-MCP-Dev/main/.claude/commands/upgrade-umbraco.mdgit clone --depth 1 https://github.com/umbraco/Umbraco-CMS-MCP-DevWrote 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/commands/umbraco/umbraco-cms-mcp-dev/upgrade-umbraco)<a href="https://agentmods.dev/commands/umbraco/umbraco-cms-mcp-dev/upgrade-umbraco"><img src="https://agentmods.dev/badge/commands/umbraco/umbraco-cms-mcp-dev/upgrade-umbraco/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/commands/umbraco/umbraco-cms-mcp-dev/upgrade-umbraco"><img src="https://agentmods.dev/badge/commands/umbraco/umbraco-cms-mcp-dev/upgrade-umbraco.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 | $0.00000 | $0.02857 |
| Opus 5.5 | $0.00000 | $0.01143 |
| Sonnet 5.5 | $0.00000 | $0.00571 |
| Haiku 4.5 | $0.00000 | $0.00286 |
Grade C, and why
upgrade-umbraco scanned grade C 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 1mo 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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
bash scripts/bootstrap-demo-site.sh --force # rm -rf demo-site/ and recopy the upgraded template Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- `dotnet`, `npm`, `curl`, `python3` on PATH How it starts
The opening of the file, as written. The whole thing — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/upgrade-umbraco
Upgrade the demo-site Umbraco packages to the latest released version, regenerate the API client, identify schema/endpoint impact on tools and tests, and surface new endpoints for tool creation.
Usage
/upgrade-umbraco # upgrade to latest stable
/upgrade-umbraco 17.4.0 # upgrade to a specific version
ARGUMENTS: $ARGUMENTS
Prerequisites
- Local SQL Server reachable from
demo-site/appsettings.local.json - A working
.envwithUMBRACO_CLIENT_ID,UMBRACO_CLIENT_SECRET,UMBRACO_BASE_URL dotnet,npm,curl,python3on PATH- Use a new, empty database for each upgrade — do not reuse the previous version's DB. The Development config has
InstallUnattended: true(admin[email protected]/1234567890), so a brand-new DB auto-installs on first boot, andscripts/create-api-user.mjsthen creates both the API user and theumbraco-back-office-mcpOAuth client. Nothing needs to be carried over from the old DB.
Steps
1. Set up an isolated worktree
Use the superpowers:using-git-worktrees skill to create .worktrees/upgrade-umbraco-<version> on a chore/upgrade-umbraco-<version> branch. Run npm install and npm run compile to confirm a clean baseline before changing anything.
2. Identify the target version
If no argument is given, query NuGet for the latest non-prerelease:
curl -s "https://api.nuget.org/v3-flatcontainer/umbraco.cms/index.json" \
| python3 -c "import json,sys; d=json.load(sys.stdin); \
print(next(v for v in reversed(d['versions']) \
if not any(x in v for x in ['rc','beta','alpha','pre'])))"
Also confirm the matching version of Umbraco.Cms.DevelopmentMode.Backoffice. Umbraco.ExaminePDF is on its own track — check for an updated major if the CMS major changed.
3. Update package versions in the template
Edit demo-site-template/demo-site-template.csproj:
<PackageReference Include="Umbraco.Cms" Version="X.Y.Z" />
<PackageReference Include="Umbraco.Cms.DevelopmentMode.Backoffice" Version="X.Y.Z" />
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.
- 1mo ago Changed · +7 lines 4a85adcad897
- 2mo ago First seen · 183 lines · 0 tokens per session scan C 4def615ee79f
upgrade-umbraco is a command published in the GitHub repository umbraco/Umbraco-CMS-MCP-Dev (39 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,857 tokens. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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