rshankras/testing
skills/testing/SKILL.md
TDD and testing skills for iOS/macOS apps. Covers characterization tests, TDD workflows, test contracts, snapshot tests, and test infrastructure. Use for test-driven development, adding tests to existing code, or building test infrastructure.
$ install --global
skillsauthnpx skillsauth add rshankras/claude-code-apple-skills testingInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
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mcp-scan (Snyk)Model Context Protocol security validation
95%
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Snyk (dep)Open source security scanning
50%
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50%
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OWASP Dep-Check
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Last scanned: Apr 11, 2026, 10:44 PM5.2s9 files scanned
SKILL.md
- name:
- testing
- description:
- TDD and testing skills for iOS/macOS apps. Covers characterization tests, TDD workflows, test contracts, snapshot tests, and test infrastructure. Use for test-driven development, adding tests to existing code, or building test infrastructure.
- allowed-tools:
- [Read, Write, Edit, Glob, Grep, Bash, AskUserQuestion]
Testing & TDD Skills
Test-driven development workflows and testing infrastructure for Apple platform apps. Works with both new and existing codebases.
When This Skill Activates
Use this skill when the user:
- Wants to do TDD (test-driven development) with AI-generated code
- Needs to add tests before refactoring existing code
- Wants to fix a bug using the red-green-refactor cycle
- Needs test infrastructure (factories, mocks, contracts)
- Asks about snapshot/visual regression testing
- Wants to ensure AI-generated code is correct via tests
Available Skills
For Existing Codebases
characterization-test-generator/ Capture current behavior of existing code before refactoring. Generates tests that document what code actually does (not what it should do), giving you a safety net for AI-assisted refactoring.
tdd-bug-fix/ Reproduce-first bug fix workflow. Write a failing test that demonstrates the bug, then fix it. Ensures the bug never regresses — critical when AI generates fixes.
tdd-refactor-guard/ Pre-refactor safety checklist. Verifies test coverage exists before allowing AI to touch existing code. Prevents the "refactor without a safety net" problem.
For New Code
tdd-feature/ Red-green-refactor scaffold for new features. Generates the failing test first, then guides implementation to make it pass, then refactors. The core TDD workflow.
test-contract/ Protocol/interface test suites. Define the contract (e.g., "any DataStore must handle empty state, single item, 100 items, and errors"), and it generates a test suite any implementation must pass.
Infrastructure
snapshot-test-setup/ SwiftUI visual regression testing using swift-snapshot-testing. Generates snapshot test boilerplate, configuration, and CI integration.
test-data-factory/ Test fixture factories for your models. Makes writing tests faster by eliminating boilerplate data setup. Supports Builder pattern and static factory methods.
integration-test-scaffold/ Cross-module test harness with mock servers, in-memory stores, and test configuration. For testing networking + persistence + business logic together.
How to Use
- Identify whether user is working on new code or existing code
- Read the relevant skill's SKILL.md for detailed workflow
- Detect project context (testing framework, architecture, existing tests)
- Generate tests following the skill's workflow
- Verify tests compile and run
Relationship to test-generator
The generators/test-generator/ skill generates test boilerplate (unit, integration, UI tests). These testing skills are complementary — they focus on workflows and methodology (TDD cycle, characterization testing, contracts) rather than just test file generation.
Cross-reference:
- Use
test-generatorfor "add tests to this class" - Use
testing/tdd-featurefor "I want to TDD this new feature" - Use
testing/characterization-test-generatorfor "I need to safely refactor this" - Use
testing/tdd-bug-fixfor "fix this bug and make sure it never comes back"
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