run-e2e

run-e2e is a skill for Claude Code from umbraco/Umbraco-MCP-Base. It costs 78 tokens per session (869 once invoked), scanned A, original, MIT.

A procedure for running Playwright end-to-end tests against a hosted Umbraco MCP Cloudflare Worker. End-to-end tests exercise the full system, including the MCP Inspector interface and OAuth sign-in flow.

In plain words
What is it for?
Use it to check the hosted worker through the real interface and authentication flow, including its Forms and content-management tools.
Why use it?
It removes the manual setup needed to start Umbraco, build the worker, clear stale processes, and run the complete test suite.

Skill for Claude Code

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

Part of the umbraco-mcp-skills plugin — 13 skills, 7 agents shipped together

Good fit Use it to check the hosted worker through the real interface and authentication flow, including its Forms and content-management tools.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/umbraco/umbraco-mcp-base/run-e2e
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 umbraco/Umbraco-MCP-Base --skill run-e2e
Clone the repo
git clone --depth 1 https://github.com/umbraco/Umbraco-MCP-Base

Made for: Claude Code.

Or install umbraco-mcp-skills, the plugin that ships this one along with the rest of its 13 skills, 7 agents.

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 run-e2e

README.md
[![agentmods](https://agentmods.dev/badge/skills/umbraco/umbraco-mcp-base/run-e2e/github.svg)](https://agentmods.dev/skills/umbraco/umbraco-mcp-base/run-e2e)
Your own site
<a href="https://agentmods.dev/skills/umbraco/umbraco-mcp-base/run-e2e"><img src="https://agentmods.dev/badge/skills/umbraco/umbraco-mcp-base/run-e2e/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.

agentmods 80×15 button for run-e2e

Your own site · 80×15
<a href="https://agentmods.dev/skills/umbraco/umbraco-mcp-base/run-e2e"><img src="https://agentmods.dev/badge/skills/umbraco/umbraco-mcp-base/run-e2e.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 78 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 869 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00078 $0.00869
Opus 5 $0.00039 $0.00434
Sonnet 5 $0.00016 $0.00174
Haiku 4.5 $0.00008 $0.00087

Measured 12d ago against content hash 0b7a94b868a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

run-e2e scanned grade A with 1 finding 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.

for i in $(seq 1 24); do if curl -sk -o /dev/null -w '%{http_code}' https://localhost:44374 --max-time 5 | grep -q '200\|302'; then echo "Umbraco is ready"; exit 0; fi; echo "Waiting for Umbraco... (attempt $i/24)"; slee
plugins/umbraco-mcp-skills/skills/run-e2e/SKILL.md · 93 lines

How it starts

The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Run E2E Tests

Playwright-based E2E tests that drive the MCP Inspector UI through the full OAuth flow against the real Forms worker (src/worker.ts), which includes both Forms tool collections and in-process CMS chaining.

Key files:

  • Test file: tests/forms-hosted-e2e/e2e/mcp-inspector.test.ts
  • Worker setup: tests/forms-hosted-e2e/e2e/helpers/worker-setup.ts
  • Wrangler config: tests/forms-hosted-e2e/wrangler.e2e.toml
  • Shared test helpers from @umbraco-cms/mcp-hosted/testing

Steps

1. Check prerequisites

  • Verify demo-site/ exists (has a .csproj file). If not, tell the user to run npx create-umbraco-mcp-server init.

2. Kill stale processes

Kill any stale processes on the E2E ports (Umbraco, Worker, Inspector):

npm run kill:e2e-ports

Tell the user which stale processes were found and killed.

3. Build the project

Build the worker before running tests:

npm run build

4. Start Umbraco as a background subprocess

Start Umbraco using the existing npm script with run_in_background: true:

npm run start:umbraco

Then wait for Umbraco to be ready. Run this single bash command which loops until the health check succeeds (up to 120 seconds):

for i in $(seq 1 24); do if curl -sk -o /dev/null -w '%{http_code}' https://localhost:44374 --max-time 5 | grep -q '200\|302'; then echo "Umbraco is ready"; exit 0; fi; echo "Waiting for Umbraco... (attempt $i/24)"; sleep 5; done; echo "Umbraco failed to start within 120s"; exit 1

Tell the user you're waiting for Umbraco to start. If the health check fails after 120 seconds, tell the user and stop.

5. Run the E2E tests

The Cloudflare Worker and MCP Inspector are started automatically by the test framework (via worker-setup.ts and shared helpers) — no manual setup needed.

Run the tests:

npm run test:e2e

If the user asked for a specific test, use:

npx playwright test --config tests/forms-hosted-e2e/e2e/playwright.config.ts -g "<test-name>"

Read the full file on GitHub · 93 lines

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. 12d ago First seen · 93 lines · 78 tokens per session scan A 0b7a94b868a9

Subscribe to this mod's changes

run-e2e is a skill published in the GitHub repository umbraco/Umbraco-MCP-Base (2 stars, last pushed yesterday), licensed MIT. It adds 78 tokens to every session and 869 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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