Agent skill

Smoke Test

by mastra-ai in mastra-ai/mastra

Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server

Custom licenceAuto-check: notesTesting & QA

Install Smoke Test

skills CLI
$ npx skills add mastra-ai/mastra --skill smoke-test -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install mastra-ai/mastra smoke-test --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/mastra-ai/mastra.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/smoke-test .claude/skills/smoke-test && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
smoke-test
GitHub stars
29k
Token cost
~3.3k tokens
SKILL.md length
1,324 words
Files
1
Skills in repo
44
Repo updated
First seen
Licence
Custom licence

At a glance

Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server

  • Tasks that involve QA and bug reports
  • SKILL.md covers Usage, Parameters, Examples and Step 0: Parameter Validation…, plus 6 more sections
  • Calls npx, yarn and pnpm; needs OPENAI_API_KEY and ANTHROPIC_API_KEY

What it does

Smoke Test is an agent skill from mastra-ai/mastra. Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server

Its SKILL.md is about 3.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering QA and bug reports. It works with Mastra, Model Context Protocol, OpenAI and npm. The repository describes itself as: Mastra is the modern TypeScript framework for AI-powered applications and agents.

When your agent uses it

  • Tasks that involve QA and bug reports

Example prompts

  • “/smoke-test”

Requirements

  • Node.js
  • A credential in OPENAI_API_KEY
  • A credential in ANTHROPIC_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit b98829a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npx
    • yarn
    • pnpm
    • bunx
    • npm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npx, yarn, pnpm, bunx and npm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • OPENAI_API_KEY
    • ANTHROPIC_API_KEY
    • GROQ_API_KEY
    • GOOGLE_GENERATIVE_AI_API_KEY
    • CEREBRAS_API_KEY
    • MISTRAL_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Smoke Test loads about 3.3k tokens when it runs. Until then it costs about 29 tokens; SKILL.md has 1,324 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~29
When it runs · the whole SKILL.md, loaded when a task matches
~3.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteMentions a .env fileSKILL.md:101
    - `.env` file (may need to be created)
  • NoteMentions a .env fileSKILL.md:159
    bally, the project will inherit it - no `.env` file needed
  • NoteMentions a .env fileSKILL.md:162
    2. **Check project `.env` file**: If not set globally, check if `.env` exists in the project and contains the key
  • NoteMentions a .env fileSKILL.md:164
    the key is not available globally or in `.env`:
  • NoteMentions a .env fileSKILL.md:166
    - Create the `.env` file with the provided key
  • NoteMentions a .env fileSKILL.md:303
    v Vars   | Check global env first, then `.env`, ask user only if needed          |
  • NoteMentions a .env fileSKILL.md:311
    - Verify `.env` has required API key

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,324 words (~3,303 tokens).

“Creates a new Mastra project using create-mastra@ and performs smoke testing of the Mastra Studio in Chrome.”

— opening of SKILL.md by mastra-ai, Custom licence
name
smoke-test
model
claude-opus-4-5

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/smoke-test of mastra-ai/mastra.

Open the folder on GitHubat commit b98829a

Compare with similar skills

Smoke Test next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Smoke Test compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Smoke Test this skillmastra-ai/mastra29k—~3.3kAutomated safety check: NotesCustom licence
Sage Wiki Integratexoai/sage-wiki623—~861Automated safety check: PassMIT
Publish Harnessruvnet/metaharness696—~361Automated safety check: PassMIT
Forkmindccplugins/awesome-claude-code-plugins970—~868Automated safety check: PassApache-2.0
Toolifycoreyhaines31/makerskills851—~2.9kAutomated safety check: NotesMIT
Changelogratel-ai/ratel471—~1.6kAutomated safety check: PassMIT

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Categories

Questions about Smoke Test

What does Smoke Test do?

Create a Mastra project using create-mastra and smoke test the studio in Chrome using Chrome MCP server. Smoke Test is an agent skill from mastra-ai/mastra.

When should I use Smoke Test?

Smoke Test fits situations like: tasks that involve QA and bug reports.

How do I install Smoke Test in Claude Code?

Run `npx skills add mastra-ai/mastra --skill smoke-test -a claude-code`. Or copy the skill folder (.claude/skills/smoke-test in mastra-ai/mastra) into .claude/skills/smoke-test in your project. Claude Code loads it when a task matches its description.

How do I install Smoke Test in Codex?

Run `npx skills add mastra-ai/mastra --skill smoke-test -a codex`. Or copy the skill folder (.claude/skills/smoke-test in mastra-ai/mastra) into .agents/skills/smoke-test in your project. Codex loads it when a task matches its description.

Can I use Smoke Test in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mastra-ai/mastra --skill smoke-test -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/smoke-test, .gemini/skills/smoke-test, .github/skills/smoke-test and .opencode/skills/smoke-test in your project.

What does Smoke Test need to run?

Going by SKILL.md and its folder, Smoke Test needs the command-line tools its instructions call (npx, yarn, pnpm, bunx and npm) and credentials named OPENAI_API_KEY, ANTHROPIC_API_KEY, GROQ_API_KEY and GOOGLE_GENERATIVE_AI_API_KEY. Our summary lists: Node.js; A credential in OPENAI_API_KEY; A credential in ANTHROPIC_API_KEY.

Does Smoke Test access the network?

SKILL.md contains no URLs. Its commands use npx and npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Smoke Test safe to install?

Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Smoke Test use?

Smoke Test has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Smoke Test use?

About 3.3k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Smoke Test?

Skills that share tags, products or a category with Smoke Test: Sage Wiki Integrate (xoai/sage-wiki, 623 stars), Publish Harness (ruvnet/metaharness, 696 stars), Forkmind (ccplugins/awesome-claude-code-plugins, 970 stars) and Toolify (coreyhaines31/makerskills, 851 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Smoke Test?

mastra-ai (a GitHub organization) maintains it in mastra-ai/mastra, which has 28,698 GitHub stars. The repository holds 44 skills in this directory. The repository was last updated on October 11, 2026.

Source: mastra-ai/mastra on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.