Test Expert
einverne/dotfiles
Testing methodologies, test-driven development (TDD), unit and integration testing, and testing best practices across multiple frameworks.
A skill your agent uses when the user says 'write tests', 'add tests', 'test coverage', 'unit tests', 'integration tests', 'component tests', 'mocking', 'edge cases', or needs to generate tests with…
Install Memstack Development Test Writer
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cwinvestments/memstack memstack-development-test-writer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/development/test-writer .claude/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.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/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .claude/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cwinvestments/memstack memstack-development-test-writer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/development/test-writer .agents/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .agents/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cwinvestments/memstack memstack-development-test-writer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/development/test-writer .cursor/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .cursor/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cwinvestments/memstack.git --path skills/development/test-writer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cwinvestments/memstack memstack-development-test-writer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/development/test-writer .gemini/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .gemini/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cwinvestments/memstack memstack-development-test-writerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/development/test-writer .github/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .github/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cwinvestments/memstack memstack-development-test-writer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/development/test-writer .opencode/skills/memstack-development-test-writer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "memstack-development-test-writer" agent skill from https://github.com/cwinvestments/memstack/tree/master/skills/development/test-writer into .opencode/skills/memstack-development-test-writer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "memstack-development-test-writer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
memstack-development-test-writer- GitHub stars
- 423
- Token cost
- ~3.7k tokens
- SKILL.md length
- 793 words
- Files
- 1
- Skills in repo
- 87
- Repo updated
- First seen
- Licence
- Proprietary
At a glance
A skill your agent uses when the user says 'write tests', 'add tests', 'test coverage', 'unit tests', 'integration tests', 'component tests', 'mocking', 'edge cases', or needs to generate tests with…
- Works in 7 steps: Gather Test Requirements → Analyze the Code Under Test → Design Test Cases → …
- The user says write tests
- SKILL.md covers Activation, Context Guard, Common Mistakes and Protocol, plus 3 more sections
- Calls npx
What it does
Memstack Development Test Writer is an agent skill from cwinvestments/memstack. Use this skill when the user says 'write tests', 'add tests', 'test coverage', 'unit tests', 'integration tests', 'component tests', 'mocking', 'edge cases', or needs to generate tests with proper mocking and edge case coverage. Do NOT use for refactoring plans or database migrations.
Its SKILL.md is about 3.7k 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 Test generation, Unit testing and Integration testing. The repository describes itself as: Structured skill framework for Claude Code. 130 skills, persistent memory, TokenStack compression, localhost dashboard with 3-agent runner, real-time streaming, MCP tools.
When your agent uses it
- The user says write tests
- Integration tests
- Component tests
- Needs to generate tests with proper mocking and edge case coverage
Example prompts
- “write tests”
- “add tests”
- “test coverage”
- “/memstack-development-test-writer”
Requirements
- Python 3
Workflow steps
7 steps, taken from the step headings in SKILL.md.
- Gather Test Requirements
- Analyze the Code Under Test
- Design Test Cases
- Write the Tests
- Mocking Strategy
- Integration & E2E Tests
- Coverage & CI Integration
What it can do on your machine
Read from SKILL.md and the folder at commit 00370ce. 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
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx, 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 no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Memstack Development Test Writer loads about 3.7k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 793 words of instructions outside code blocks.
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 (Proprietary) doesn't allow us to republish the file, so here is its outline and opening line. It has 793 words (~3,705 tokens).
“Generates comprehensive test suites with unit, integration, and e2e tests, proper mocking strategies, edge case coverage, naming conventions, and CI integration patterns.”
- name
- memstack-development-test-writer
- version
- 1.0.0
- license
- Proprietary, MemStack™ Pro by CW Affiliate Investments LLC. See LICENSE.txt
Files
Just SKILL.md in skills/development/test-writer of cwinvestments/memstack.
Open the folder on GitHubat commit 00370ce
Compare with similar skills
Memstack Development Test Writer 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Memstack Development Test Writer this skillcwinvestments/memstack | 423 | — | ~3.7k | Automated safety check: Pass | Proprietary | |
| Test Experteinverne/dotfiles | 121 | — | ~2.3k | Automated safety check: Pass | GPL-3.0 | |
| Scenario Testingaiskillstore/marketplace | 430 | 1 repos | ~830 | Automated safety check: Pass | None | |
| Recommending Test Layersbitwarden/ai-plugins | 154 | — | ~2.4k | Automated safety check: Pass | Custom licence | |
| Test Automationrevfactory/harness-100 | 1.3k | — | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| OpenROAD Module Test AdderThe-OpenROAD-Project/OpenROAD | 3.2k | — | ~1.8k | Automated safety check: Pass | BSD-3-Clause |
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Questions about Memstack Development Test Writer
What does Memstack Development Test Writer do?
A skill your agent uses when the user says 'write tests', 'add tests', 'test coverage', 'unit tests', 'integration tests', 'component tests', 'mocking', 'edge cases', or needs to generate tests with…. Memstack Development Test Writer is an agent skill from cwinvestments/memstack. Use this skill when the user says 'write tests', 'add tests', 'test coverage', 'unit tests', 'integration tests', 'component tests', 'mocking', 'edge cases', or needs to generate tests with proper mocking and edge case coverage.
When should I use Memstack Development Test Writer?
Memstack Development Test Writer fits situations like: the user says write tests; integration tests; component tests; needs to generate tests with proper mocking and edge case coverage.
How do I install Memstack Development Test Writer in Claude Code?
Run `npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a claude-code`. Or copy the skill folder (skills/development/test-writer in cwinvestments/memstack) into .claude/skills/memstack-development-test-writer in your project. Claude Code loads it when a task matches its description.
How do I install Memstack Development Test Writer in Codex?
Run `npx skills add cwinvestments/memstack --skill memstack-development-test-writer -a codex`. Or copy the skill folder (skills/development/test-writer in cwinvestments/memstack) into .agents/skills/memstack-development-test-writer in your project. Codex loads it when a task matches its description.
Can I use Memstack Development Test Writer 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 cwinvestments/memstack --skill memstack-development-test-writer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/memstack-development-test-writer, .gemini/skills/memstack-development-test-writer, .github/skills/memstack-development-test-writer and .opencode/skills/memstack-development-test-writer in your project.
What does Memstack Development Test Writer need to run?
Going by SKILL.md and its folder, Memstack Development Test Writer needs the command-line tools its instructions call (npx). Our summary lists: Python 3.
Does Memstack Development Test Writer access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Memstack Development Test Writer 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 Memstack Development Test Writer use?
Memstack Development Test Writer carries a proprietary licence (declared in SKILL.md). It is published on GitHub, but it is not open source: read the licence file before using or sharing it.
How many tokens does Memstack Development Test Writer use?
About 3.7k tokens (SKILL.md is roughly 15k 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 Memstack Development Test Writer?
Skills that share tags, products or a category with Memstack Development Test Writer: Test Expert (einverne/dotfiles, 121 stars), Scenario Testing (aiskillstore/marketplace, 430 stars), Recommending Test Layers (bitwarden/ai-plugins, 154 stars) and Test Automation (revfactory/harness-100, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Memstack Development Test Writer?
cwinvestments (a GitHub user) maintains it in cwinvestments/memstack, which has 423 GitHub stars. The repository holds 87 skills in this directory. The repository was last updated on September 26, 2026.
Source: cwinvestments/memstack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.