Agent skill

Matlab Write Tests

by matlab in matlab/matlab-agentic-toolkit

Generate and structure MATLAB unit tests using matlab.unittest and matlab.uitest features, including class-based tests, parameterized testing, fixtures, mocking, and app testing with gestures.

Custom licenceAuto-check passedTesting & QA

Install Matlab Write Tests

skills CLI
$ npx skills add matlab/matlab-agentic-toolkit --skill matlab-write-tests -a claude-code

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

GitHub CLI
$ gh skill install matlab/matlab-agentic-toolkit matlab-write-tests --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/matlab/matlab-agentic-toolkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills-catalog/matlab-software-development/matlab-write-tests .claude/skills/matlab-write-tests && 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
matlab-write-tests
GitHub stars
1.1k
Token cost
~2.9k tokens
SKILL.md length
822 words
Files
8 (incl. references)
Skills in repo
142
Repo updated
First seen
Licence
Custom licence

At a glance

Generate and structure MATLAB unit tests using matlab.unittest and matlab.uitest features, including class-based tests, parameterized testing, fixtures, mocking, and app testing with gestures.

  • Works in 3 steps: Briefly state what you'll test (methods… → Write the test file after user confirms → Run via run_matlab_test_file MCP tool to…
  • Creating test classes
  • SKILL.md covers When to Use, When NOT to Use, Must-Follow Rules and Workflow, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Matlab Write Tests is an agent skill from matlab/matlab-agentic-toolkit. Generate and structure MATLAB unit tests using matlab.unittest and matlab.uitest features, including class-based tests, parameterized testing, fixtures, mocking, and app testing with gestures. Use when writing, generating, or adding tests, creating test classes, adding test methods, parameterizing tests, setting up fixtures, mocking dependencies, or testing App Designer apps. Do NOT use for running tests, collecting coverage, or CI/CD configuration.

Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `manifest.yaml`, `references/app-testing-guidance.md` and `references/baseline-tests-guidance.md`).

It sits in Testing & QA, covering Test generation, Unit testing and CI/CD. The repository describes itself as: The MATLAB Agentic Toolkit brings proven MATLAB capabilities to AI agents, making engineering and scientific workflows agent-ready.

When your agent uses it

  • Creating test classes
  • Adding test methods
  • Parameterizing tests
  • Setting up fixtures

Example prompts

  • “/matlab-write-tests”

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Briefly state what you'll test (methods + key edge cases)
  2. Write the test file after user confirms
  3. Run via run_matlab_test_file MCP tool to confirm tests pass

What it can do on your machine

Read from SKILL.md and the folder at commit 59dfd92. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are matlab).

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

  • Network

    No URLs in SKILL.md.

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

  • Credentials

    Names no API keys, tokens, secrets or passwords.

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

Context cost

Matlab Write Tests loads about 2.9k tokens when it runs, and up to ~9.2k if it reads all its reference files. Until then it costs about 118 tokens; SKILL.md has 822 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~118
When it runs · the whole SKILL.md, loaded when a task matches
~2.9k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~9.2k

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 passed

The automated check found no risky patterns in SKILL.md.

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 822 words (~2,855 tokens).

“Generate, structure, and organize MATLAB unit tests using the matlab.unittest and matlab.uitest frameworks.”

— opening of SKILL.md by matlab, Custom licence
name
matlab-write-tests
license
https://www.mathworks.com/content/dam/mathworks/license/pmrl/license.md
metadata.author
MathWorks
metadata.version
1.0

Read the full SKILL.md on GitHub

Files

SKILL.md and 7 other files (references) in skills-catalog/matlab-software-development/matlab-write-tests of matlab/matlab-agentic-toolkit.

  • SKILL.md
  • manifest.yaml
  • references/app-testing-guidance.md
  • references/baseline-tests-guidance.md
  • references/constraints-guidance.md
  • references/fixtures-guidance.md
  • references/mocking-guidance.md
  • references/parameterized-tests-guidance.md

Open the folder on GitHubat commit 59dfd92

Compare with similar skills

Matlab Write Tests 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.

Matlab Write Tests compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Matlab Write Tests this skillmatlab/matlab-agentic-toolkit1.1k—~2.9kAutomated safety check: PassCustom licence
Run Testsrunceel/ReactiveProperty944—~3.6kAutomated safety check: PassMIT
Blue Teamgaasher/Agent-Loop-Skills174—~3.6kAutomated safety check: PassMIT
Run Testsmicrosoft/testfx1k—~4.2kAutomated safety check: PassMIT
Adk Verify Snippetsgoogle/adk-python22k—~1.4kAutomated safety check: PassApache-2.0
Megatron Core Testing GuideNVIDIA/Megatron-LM18k1 repos~2.1kAutomated safety check: PassApache-2.0

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Categories

Questions about Matlab Write Tests

What does Matlab Write Tests do?

Generate and structure MATLAB unit tests using matlab.unittest and matlab.uitest features, including class-based tests, parameterized testing, fixtures, mocking, and app testing with gestures. Matlab Write Tests is an agent skill from matlab/matlab-agentic-toolkit.uitest features, including class-based tests, parameterized testing, fixtures, mocking, and app testing with gestures.

When should I use Matlab Write Tests?

Matlab Write Tests fits situations like: creating test classes; adding test methods; parameterizing tests; setting up fixtures.

How do I install Matlab Write Tests in Claude Code?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-write-tests -a claude-code`. Or copy the skill folder (skills-catalog/matlab-software-development/matlab-write-tests in matlab/matlab-agentic-toolkit) into .claude/skills/matlab-write-tests in your project. Claude Code loads it when a task matches its description.

How do I install Matlab Write Tests in Codex?

Run `npx skills add matlab/matlab-agentic-toolkit --skill matlab-write-tests -a codex`. Or copy the skill folder (skills-catalog/matlab-software-development/matlab-write-tests in matlab/matlab-agentic-toolkit) into .agents/skills/matlab-write-tests in your project. Codex loads it when a task matches its description.

Can I use Matlab Write Tests 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 matlab/matlab-agentic-toolkit --skill matlab-write-tests -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/matlab-write-tests, .gemini/skills/matlab-write-tests, .github/skills/matlab-write-tests and .opencode/skills/matlab-write-tests in your project.

What does Matlab Write Tests need to run?

SKILL.md names no scripts, command-line tools or credentials: Matlab Write Tests is instructions for the agent only.

Does Matlab Write Tests access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Matlab Write Tests safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Matlab Write Tests use?

Matlab Write Tests 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 Matlab Write Tests use?

About 2.9k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6.4k tokens, read only when the agent opens those files.

What are the alternatives to Matlab Write Tests?

Skills that share tags, products or a category with Matlab Write Tests: Run Tests (runceel/ReactiveProperty, 944 stars), Blue Team (gaasher/Agent-Loop-Skills, 174 stars), Run Tests (microsoft/testfx, 1k stars) and Adk Verify Snippets (google/adk-python, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Matlab Write Tests?

matlab (a GitHub organization) maintains it in matlab/matlab-agentic-toolkit, which has 1,140 GitHub stars. The repository holds 142 skills in this directory. The repository was last updated on October 7, 2026.

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