Building with AI

Coding agents write better Momentic tests when they know the file format, the MCP tools, and the steps for each job. You have three options, from most to least capable. Each one is a single command or a paste.

Install the MCP server

The MCP server gives the agent a live browser or device and tools to browse, edit, run, and triage tests. install-mcp detects the coding agents on your machine and writes the config for each one.

npx momentic install-mcp

npx momentic-mobile install-mcp

Pass --client to pick agents and --scope user to write your user config instead of the project config. See the MCP page for manual setup per client.

Install the skills

Skills are markdown instructions that tell the agent how to use the MCP tools and the Momentic test format. momentic ships the web skills, momentic-mobile ships the mobile skills, and mo ships the Mo skill. Each CLI asks once when a newer version is available.

npx momentic skills

npx momentic-mobile skills

mo skills

The command writes the skill files to your agent’s skills directory and adds a short pointer to AGENTS.md or CLAUDE.md so the agent loads the right skill before it writes Momentic code. The CLI asks once after an upgrade whether to refresh them. See Coding agent skills for the directories and flags.

Ask the agent to set up your project

Paste this prompt into your agent once the tools are installed. It creates the config and a first test, and it checks that the MCP server answers.

Set up Momentic in this repo. Run `npx momentic init`, then use the
momentic-test skill and the Momentic MCP tools to write one test for the
most important page in this app. Run the test and fix it until it passes.

Which skill does what

Skill	Use it when	CLI
`momentic-test`	Create or extend web tests, steps, and modules.	`momentic`
`momentic-mobile-test`	Create or extend Android and iOS tests.	`momentic-mobile`
`momentic-spec`	Write the affected tests before a product change.	all
`momentic-maintain`	Investigate a failing run on a branch or main and repair it.	all
`momentic-triage-quarantined-tests`	Work through the quarantine backlog.	all
`mo-qa`	Drive Mo, the autonomous QA agent, from the terminal.	`mo`

Invoke a skill by name in your prompt, for example /momentic-test write a test for checkout. See Invoke the skill for more examples.

If you install nothing

Agents without the skills still do well when your repository rules point them at the docs. Paste this block into AGENTS.md, CLAUDE.md, or .cursor/rules:

## Momentic

This repo uses Momentic for end-to-end tests. Tests are `*.test.yaml` files and
shared steps are `*.module.yaml` files under the directory named in
`momentic.config.yaml`. Read https://momentic.ai/docs/llms.txt before you change
a test. Run `npx momentic run <file>` to run a test locally. Do not write
Playwright or Selenium code for end-to-end tests in this repo.

Get started

Author

Run

Learn

Platforms

Integrations

Advanced

Migrations

Account

Which skill does what

If you install nothing

​Which skill does what

​If you install nothing

​Related

Which skill does what

If you install nothing

Related