Agent skill

Test Spec

by gustavscirulis in gustavscirulis/snapgrid

Generates comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan.

Custom licenceAuto-check: notesTesting & QA

Install Test Spec

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a claude-code

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

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec --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/gustavscirulis/snapgrid.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .claude/skills/test-spec && 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/

Paste into Claude Code

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .claude/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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

$skill-installer install https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec

Type 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.

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .agents/skills/test-spec && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .agents/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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.

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .cursor/skills/test-spec && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .cursor/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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

$ gemini skills install https://github.com/gustavscirulis/snapgrid.git --path .claude/skills/skills/product/test-spec

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .gemini/skills/test-spec && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .gemini/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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.

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec

Installs 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).

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .github/skills/test-spec && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .github/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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.

skills CLI

$ npx skills add gustavscirulis/snapgrid --skill test-spec -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install gustavscirulis/snapgrid test-spec --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gustavscirulis/snapgrid.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/skills/product/test-spec .opencode/skills/test-spec && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "test-spec" agent skill from https://github.com/gustavscirulis/snapgrid/tree/main/.claude/skills/skills/product/test-spec into .opencode/skills/test-spec/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "test-spec", 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: test-spec
GitHub stars: 117
Used in: 1 other repo
Token cost: ~12k tokens
SKILL.md length: 2,819 words
Files: 1
Skills in repo: 118
Repo updated: Apr 30, 2026
First seen: Oct 7, 2026
Licence: Custom licence

At a glance

Generates comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan.

Works in 12 steps: Integration Test Cases → UI Test Cases → Accessibility Testing → …
Creating QA strategy
SKILL.md covers Metadata, Activation, Description and Prerequisites, plus 8 more sections
Calls xcodebuild and xcrun

What it does

Test Spec is an agent skill from gustavscirulis/snapgrid. Generates comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan. Creates TESTSPEC.md from PRD and implementation specs. Use when creating QA strategy.

Its SKILL.md is about 12k 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 PRD writing, Test strategy and Unit testing. The repository describes itself as: SnapGrid is an open-source Mac app for collecting, organizing, and analyzing UI screenshots. It uses AI to automatically detect UI components and patterns, making it a powerful…

When your agent uses it

Creating QA strategy
Tasks that involve PRD writing
Tasks that involve Test strategy

Example prompts

“Use the test-spec skill to generate comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan”
“/test-spec”

Requirements

Pre-approved tools (allowed-tools): Read, Write, Glob, Grep, AskUserQuestion

Workflow steps

12 steps, taken from the step headings in SKILL.md.

Integration Test Cases
UI Test Cases
Accessibility Testing
Performance Testing
Edge Cases & Error Scenarios
Security Testing
Regression Testing
Beta Testing (TestFlight)
Test Automation
Bug Tracking
Post-Launch Monitoring
Test Documentation

What it can do on your machine

Read from SKILL.md and the folder at commit eb7eaf4. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
- Read
- Write
- Glob
- Grep
- AskUserQuestion
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- xcodebuild
- xcrun
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

Test Spec loads about 12k tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 2,819 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~53
When it runs · the whole SKILL.md, loaded when a task matches: ~12k

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.

NoteRuns commands with sudoSKILL.md:1001

run: sudo xcode-select -s /Applications/Xcode_15.0.app

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 2,819 words (~11,878 tokens).

“Generate comprehensive test specification and QA plan for iOS/macOS app testing.”

— opening of SKILL.md by gustavscirulis, Custom licence

name: test-spec
allowed-tools: Read, Write, Glob, Grep, AskUserQuestion

Outline of SKILL.md

Test Specification Skill
Metadata
Activation
Description
Prerequisites
Input Sources
Output
2.2 ViewModel Tests
2.3 Service Tests
3. Integration Test Cases
3.1 Data Persistence Integration
3.2 API Integration
4. UI Test Cases
4.1 Critical User Journey 1: Onboarding and First Item Creation
4.2 Critical User Journey 2: View and Edit Item
4.3 Critical User Journey 3: Delete Item
4.4 Critical User Journey 4: Search Items
5. Accessibility Testing
5.1 VoiceOver Testing
5.2 Dynamic Type Testing
5.3 Color Contrast Testing
6. Performance Testing
6.1 Performance Benchmarks
6.2 Load Testing
7. Edge Cases & Error Scenarios
7.1 Network Conditions
7.2 Data Validation
7.3 Permission Handling
7.4 Device Conditions
8. Security Testing

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/skills/product/test-spec of gustavscirulis/snapgrid.

Open the folder on GitHubat commit eb7eaf4

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in gustavscirulis/snapgrid, which our catalogue first saw on October 7, 2026.

rshankras/claude-code-apple-skillsskills/product/test-spec

Compare with similar skills

Test Spec 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.

Test Spec compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Test Spec this skillgustavscirulis/snapgrid	117	1 repos	~12k	Automated safety check: Notes	Custom licence	5 mo ago
Web Testing with Playwright and Vitestwithkynam/vibecode-pro-max-kit	1.1k	—	~892	Automated safety check: Pass	Apache-2.0	3 mo ago
Storybook Testingyonatangross/orchestkit	290	—	~2.3k	Automated safety check: Pass	MIT	today
Testing OpenLogi UIAprilNEA/OpenLogi	23k	—	~1.1k	Automated safety check: Pass	Apache-2.0	today
Testing Hashqlhashintel/hash	1.7k	—	~1.9k	Automated safety check: Pass	AGPL-3.0	today
Dynamo Unit TestingDynamoDS/Dynamo	2k	—	~622	Automated safety check: Pass	Apache-2.0	today

Similar skills

Web Testing with Playwright and Vitest
withkynam/vibecode-pro-max-kit
Covers web testing from unit to E2E, load, visual, accessibility and security checks, with Playwright, Vitest and k6 guides plus a Playwright setup script.
1.1k GitHub stars~892 tokensUpdated 3 mo ago
Testing & QAAuto-check passed
Storybook Testing
yonatangross/orchestkit
Storybook 10 testing patterns with Vitest integration, ESM-only distribution, CSF3 typesafe factories, play() interaction tests, Chromatic TurboSnap visual regression, module automocking…
290 GitHub stars~2.3k tokensUpdated today
Testing & QAAuto-check passed
Testing OpenLogi UI
AprilNEA/OpenLogi
Verifies OpenLogi's native GPUI interface with focused tests, the component gallery and a mock agent, choosing the evidence that fits each change.
23k GitHub stars~1.1k tokensUpdated today
Testing & QAAuto-check passed
Testing Hashql
hashintel/hash
HashQL testing strategies including compiletest (UI tests), unit tests, and snapshot tests.
1.7k GitHub stars~1.9k tokensUpdated today
Testing & QAAuto-check passed
Dynamo Unit Testing
DynamoDS/Dynamo
Write comprehensive NUnit tests for the Dynamo codebase following Dynamo testing patterns, conventions, and architectural constraints.
2k GitHub stars~622 tokensUpdated today
Testing & QAAuto-check passed
Test Strategy
nurettincoban/ai-prd-workflow
Write TEST-STRATEGY.md, a test plan per RFC, before the tests are written.
298 GitHub stars~1.4k tokensUpdated yesterday
Testing & QAAuto-check passed

Questions about Test Spec

What does Test Spec do?

Generates comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan. Test Spec is an agent skill from gustavscirulis/snapgrid. Generates comprehensive test specification with unit tests, UI tests, accessibility testing, and beta testing plan.

When should I use Test Spec?

Test Spec fits situations like: creating QA strategy; tasks that involve PRD writing; tasks that involve Test strategy.

How do I install Test Spec in Claude Code?

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

How do I install Test Spec in Codex?

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

Can I use Test Spec 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 gustavscirulis/snapgrid --skill test-spec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-spec, .gemini/skills/test-spec, .github/skills/test-spec and .opencode/skills/test-spec in your project.

What does Test Spec need to run?

Going by SKILL.md and its folder, Test Spec needs the command-line tools its instructions call (xcodebuild and xcrun). Its frontmatter pre-approves these tools: Read, Write, Glob, Grep, AskUserQuestion.

Does Test Spec 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 Test Spec safe to install?

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

What licence does Test Spec use?

Test Spec 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 Test Spec use?

About 12k tokens (SKILL.md is roughly 48k 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 Test Spec?

Skills that share tags, products or a category with Test Spec: Web Testing with Playwright and Vitest (withkynam/vibecode-pro-max-kit, 1.1k stars), Storybook Testing (yonatangross/orchestkit, 290 stars), Testing OpenLogi UI (AprilNEA/OpenLogi, 23k stars) and Testing Hashql (hashintel/hash, 1.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Test Spec?

gustavscirulis (a GitHub user) maintains it in gustavscirulis/snapgrid, which has 117 GitHub stars. The repository holds 118 skills in this directory. The repository was last updated on April 30, 2026.

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

Test Spec

Install Test Spec

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Used in 1 other repository

Compare with similar skills

Similar skills

Web Testing with Playwright and Vitest

Storybook Testing

Testing OpenLogi UI

Testing Hashql

Dynamo Unit Testing

Test Strategy

More from gustavscirulis/snapgrid

Interaction Design

Account Deletion

Alarmkit

Analytics Interpretation

Analytics Setup

Announcement Banner

Questions about Test Spec

Install Test Spec

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Files

Used in 1 other repository

Compare with similar skills

Similar skills

More from gustavscirulis/snapgrid

Related

Questions about Test Spec