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Agent Skill

Momentic Test skill

momentic-testmomentic-ai/skillsskills/momentic-test/SKILL.md

Create, run, and maintain Momentic browser E2E tests and modules stored as *.test.yaml and *.module.yaml files.

16

always on

30 tokname + description

once used

3,669 tokSKILL.md body

bundled files

0

installs

68kskills.sh

Install the Momentic Test skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/momentic-ai/skills --skill momentic-test

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/momentic-ai/skills.git /tmp/skills
mkdir -p ~/.claude/skills
cp -R /tmp/skills/skills/momentic-test ~/.claude/skills/momentic-test

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

WhenWhat loadsCost
Every sessionName and description30 tok
When the agent uses itThe SKILL.md instructions3,669 tok
Only if openedNo bundled files—

Until it is used, momentic-test costs about 45× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 6 skills from momentic-ai/skills would load 284 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

  • Momentic model
  • Project files and formats
  • Choose the workflow
  • Before editing
  • Authoring rules
  • AI Action V3
  • Time-sensitive interactions
  • Test execution behavior
  • Cache and memory
  • Readiness and timing
  • Test context
  • JavaScript
  • Working with v2 YAML
  • MCP browser workflow
  • Start and fetch context
  • Preview -> splice -> validate
  • Modules
  • Troubleshooting
  • Page state and timing
  • Browser and host resource pressure
  • Targeting and assertions
  • Format and data

More skills from momentic-ai/skills

All skills in this repo
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    Classify or explain Momentic test run results using Momentic MCP tools. Use when the user asks to categorize a failure, understand why a run failed, triage test results, or compare run results to past run results.

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  3. momentic-maintainmomentic-ai/skills

    Diagnose, classify, triage, and repair failing Momentic tests with MCP run tools, the Momentic CLI, and manual run artifacts. Use when a developer asks what happened on a branch, DevX or on-call asks why main is red, or the user wants to inspect classifications, de-flake quarantined or recovered tests, reduce retries, re-classify runs, run AI triage, or repair failures.

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  4. momentic-mobile-testmomentic-ai/skills

    Create, run, and maintain Momentic mobile E2E tests and modules for Android and iOS. Use Momentic MCP tools for live device validation, and use direct v2 YAML edits only for high-confidence local mobile v2 changes.

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  5. momentic-specmomentic-ai/skills

    Improve code correctness using Momentic specs in the feature development process

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