SKILL.md packages that extend Claude Code, Cursor, Copilot, and other AI agents.
Tags
mutant
Run Mutant mutation testing, analyze alive mutations, and produce clear fix actions (add tests or simplify code).
hand-compute
A technique skill that guides agents to execute system flows step-by-step with explicit state to find race conditions and state bugs.
skill_share
Guidance for authoring and testing agent skills using a test-driven approach; helps design clear SKILL.md files and discovery-optimised descriptions.
orchestkit
Deep pull-request code review using parallel specialized agents (quality, security, tests, architecture, performance) and synthesized review reports for approve
ros2-engineering-skills
An API-reference and template guide for ROS 2 development: workspace, nodes, QoS, ros2_control, Nav2/MoveIt, testing, and deployment best practices.
ed3d-plugins
Generate detailed, engineer-ready implementation plans from design docs: file paths, step-by-step tasks, tests, and verification instructions.
kilo-marketplace
Guides agents to build, modify, test, and validate dbt models and SQL transformations for analytics engineering workflows.
claude-code-workflows
Opinionated, language-agnostic principles for writing maintainable, readable, and secure code — use when implementing features, refactoring, or reviewing code q
agentscope-java
Reactive Java framework skill for building non-blocking, agent-oriented LLM applications using Project Reactor and AgentScope conventions.
claude-mpm-skills
Guides building production-quality Go CLIs using Cobra for commands and Viper for configuration, with patterns for flags, completion, testing and best practices
EloPhanto (React agent)
Opinionated Solana dApp and program development skill: wallet UX, Anchor/Pinocchio programs, testing (LiteSVM/Surfpool), and migration/security checklists for p
dataframely
Guidelines and best practices for defining typed Polars schemas and collections, validating data frames, and writing tests using Dataframely.
claude-mpm-skills
Patterns and best-practices for building production-ready Rust HTTP APIs with Axum: typed handlers, extractors, middleware, error handling, tracing, graceful sh
axiom
Audit Swift/xOS test suites for flaky patterns, speed issues, Swift Testing migration opportunities, and overall test health; outputs prioritized findings with
messydata
Generate realistic synthetic datasets with configurable anomalies (missing values, duplicates, invalid categories, bad dates, outliers) using YAML configs, CLI,
matebot
Generate, analyze, or improve Makefiles for modern C/C++ projects using a tested gnaro-based template to add compilation, testing, linting, formatting, and depe
skillshub
Practical guide to dependency injection patterns in Go: manual constructor injection, and comparisons of libraries like google/wire, uber-go/dig/fx, and samber/
offload
Run and debug large test suites in parallel using Offload; includes invocation patterns, log filtering, flaky-test handling, and config guidance.
agent-skills
Generate NUnit 3 unit tests and test patterns for C# projects (Assert.That constraint model, parameterized tests, lifecycle hooks, and Moq examples).
dotfiles
Guides an agent through a strict red–green–refactor TDD cycle: write a failing test, implement the minimal change, and refactor with verification.
crucible
Adversarial review skill: iteratively attack artifacts (designs, plans, code, docs) and surface fatal/significant issues until clean or escalation.
ethskills
Practical guide and patterns for smart contract tests using Foundry: unit tests, fuzzing, fork tests, and invariants to catch economic and integration bugs.
flutter-ai-rules
Guides setup and use of Firebase In-App Messaging in Flutter apps: triggering, suppression, privacy opt-ins, testing, and campaign tips.
factory-plugins
Recording lifecycle and best practices for terminal and browser captures used by droid-control workflows — ensures consistent, verifiable evidence for demos and
skills
Expert EventKit patterns for iOS/macOS: permissions, bidirectional sync, zero-width identity signatures, batch operations, and zombie-task handling.
claude-skill-registry
Automated, structured PR reviewer: gathers metadata, diffs, CI results, dependency changes and provides a concise verdict with testing and documentation recomme
specs.md
Orchestrates execution of work items across modes (autopilot, confirm, validate) with scripted init/complete tooling, plan/test/report artifacts and strict gati
clawdata
Run and manage dbt projects via the dbt CLI — initialise projects, run/build models, run tests, generate docs, and debug pipelines.
spboyer
Iteratively improves SKILL.md frontmatter using the Ralph loop to meet compliance and testing standards.
my-cc-harness
Guides an agent through the TDD cycle: write a failing test, implement minimal code to pass, then refactor. Useful for disciplined feature development and maint
