Best test coverage skills, page 5

Apex code quality guardrails for Salesforce development. An agent skill from github/awesome-copilot.

github/awesome-copilot

File a LeetCode Java solution into this repo the way the existing ones are filed — put it in the package its pattern owns, write the file-level javadoc header (<number.

yennanliu/CS_basics

Search, read and maintain nub's knowledge graph under wiki/ with the lat CLI — the design and research corpus, cross-linked and checked.

nubjs/nub

Writes Minitest tests with fixtures following 37signals conventions.

dilolabs/nosia

Multi-dimensional health assessment for .NET projects with letter grades (A-F) using Roslyn MCP tools.

codewithmukesh/dotnet-claude-kit

Performs comprehensive code reviews for Bitwarden iOS projects, verifying architecture compliance, style guidelines, compilation safety, test coverage, and security requirements.

bitwarden/ios

Debugs failing or flaky tests and improves test coverage. An agent skill from ruby-git/ruby-git.

ruby-git/ruby-git

Audit CWS (runtime-security) iouring functional-test coverage and add a functional test for any iouring opcode whose operation CWS observes but that is not exercised through iouring.

DataDog/datadog-agent

This skill should be used when writing test cases, fixing bugs, analyzing code for potential issues, or improving test coverage for JavaScript/TypeScript applications.

ailabs-393/ai-labs-claude-skills

A skill your agent uses to decide which refinement and hardening tools are worth running on a set of changes — refine, crap-analyzer, arch-check, introversion scan, mutation testing, TLA+ model…

swingerman/engineer

This skill should be used when the user asks about "code complexity", "cyclomatic complexity", "cognitive complexity", "code metrics", "maintainability index", "code coverage", or when measuring…

archibate/dotfiles-opencode

Run local Go health checks (tests, coverage, lint) in Go repositories that contain go.mod/go.sum.

instructa/agent-skills

Write unit tests for any function — happy path, edge cases, and error cases.

hamzafarooq/claude-code-starter

Gary Vaynerchuk's jab-jab-jab-right-hook framework applied to a personal portfolio rotation on X and LinkedIn.

coreyhaines31/makerskills

A skill your agent uses when preparing a codebase for security audit.

ccashwell/evm-cortex

Load when investigating a failing PR CI pipeline or checking PR health.

DataDog/pup

Review an AlbumentationsX transform for correctness, public API coherence, performance, documentation, and test coverage.

albumentations-team/AlbumentationsX

Test-driven development skill for writing unit tests, generating test fixtures and mocks, analyzing coverage gaps, and guiding red-green-refactor workflows across Jest, Pytest, JUnit, Vitest, and…

alirezarezvani/claude-skills

Unified team skill for testing team. An agent skill from catlog22/Claude-Code-Workflow.

catlog22/Claude-Code-Workflow

Map advanced persistent threat (APT) group TTPs to the MITRE ATT&CK framework using the attackcti Python library to query STIX/TAXII data for group-technique associations, then generate ATT&CK…

mukul975/Anthropic-Cybersecurity-Skills

Implements threat modeling using the MITRE ATT&CK framework to map adversary TTPs against organizational assets, assess detection coverage gaps, and prioritize defensive investments.

mukul975/Anthropic-Cybersecurity-Skills

Maps observed adversary behaviors, security alerts, and detection rules to MITRE ATT&CK techniques and sub-techniques to quantify detection coverage and guide control prioritization.

mukul975/Anthropic-Cybersecurity-Skills

Multi-agent code review covering correctness, quality, architecture, test coverage, and security

atelier-fashion/adlc-toolkit

Decision-makers mapping skill for Claude Code and Codex: map the buying committee at a target account — economic buyers, champions, technical evaluators, and influencers.

explorium-ai/gtm-skills

Set up and run mutation testing with Stryker, including full-project and focused diff runs against the current review base, then use surviving mutants to strengthen weak or missing tests.

citypaul/.dotfiles

Run a read-only audit for missing, weak, stale, or mis-scoped test coverage.

github/awesome-copilot

Write high-quality JUnit 5 tests with AssertJ assertions. An agent skill from decebals/claude-code-java.

decebals/claude-code-java

Mock generation workflow for go-crypto-wallet. An agent skill from hiromaily/go-crypto-wallet.

hiromaily/go-crypto-wallet

Gate test coverage with a ratchet — a committed baseline that coverage may never drop below and only ever rises.

rshankras/claude-code-apple-skills

Calculates targeted CRAP (Change Risk Anti-Patterns) scores for a named .NET method, class, or single source file.

microsoft/testfx

Run code coverage analysis on a specified file within the sandbox environment.

opensage-agent/opensage-adk

Run mutant, read mutation reports, fix alive mutations, and verify coverage.

ThibautBaissac/rails_ai_agents

AI DevKit · Testing phase guidance for adding and validating feature test coverage.

codeaholicguy/ai-devkit

Enforces tiered test coverage standards with three dimensions — line coverage by tier, spec-to-test traceability, and spec-to-code implementation mapping.

ash1794/vibe-engineering

A skill your agent uses when running mutation testing, killing mutants, verifying test quality, checking mutation score, or analyzing survivors after the test baseline is green

SebastienDegodez/copilot-instructions

Parallel read-only multi-agent review of a current git diff or explicit file scope to find behavioral regressions, security or privacy risks, performance or reliability issues, and contract or test…

sickn33/agentic-awesome-skills

Apex test execution, coverage analysis, and test-fix loops with 120-point scoring.

Jaganpro/sf-skills

Verify documentation and tests in fe-tools. An agent skill from MichealWayne/fe-tools.

MichealWayne/fe-tools

Verifies test coverage and encourages testing habits. An agent skill from DanielPodolsky/ownyourcode.

DanielPodolsky/ownyourcode

Holistic test coverage measurement. An agent skill from sd0xdev/sd0x-harness.

sd0xdev/sd0x-harness

Deploys and monitors Canary Tokens via the Thinkst Canary REST API for deception-based breach detection, programmatically creating web bug, DNS, MS Word document, and AWS API key tokens and…

mukul975/Anthropic-Cybersecurity-Skills

A skill your agent uses when evaluating test quality on modules containing business logic, calculation utilities, or state machines to determine whether the tests provide genuine defect detection.

thedaviddias/Front-End-Checklist

A skill your agent uses when applies to any public website. An agent skill from thedaviddias/Front-End-Checklist.

thedaviddias/Front-End-Checklist

Iteratively improve skill frontmatter to achieve good routing test coverage.

microsoft/GitHub-Copilot-for-Azure

Refactoring assessment and behavior-preserving patterns for code with a passing baseline and proportionate preservation evidence.

citypaul/.dotfiles

A skill your agent uses when adding or changing tests, or before considering a change done, in ChatbotX.

ChatbotXIO/ChatbotX

Iterative measurement-driven improvement loop. An agent skill from srid/emanote.

srid/emanote

Show loaded skill inventory — bkit core vs project-local, conflicts, coverage gaps.

ww-w-ai/bkit-claude-code