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Agent Skills

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doc-coauthoring

Guide users through a structured workflow for co-authoring documentation. Use when user wants to write documentation, proposals, technical specs, decision docs, or similar structured content. This workflow helps users efficiently transfer context, refine content through iteration, and verify the doc works for readers. Trigger when user mentions writing docs, creating proposals, drafting specs, or similar documentation tasks.

coauthoringworkflowdocumentationwriting-techniques
Evilander
Evilander
23

skill-creator

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

skill-creatordeveloper-guidancetool-integrationworkflow
Evilander
Evilander
23

xlsx

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas

spreadsheetformulasdata-analysisdata-visualization
Evilander
Evilander
23

using-git-worktrees

Git worktree–based workspace isolation for parallel or non-disruptive development. Use when work must occur without modifying or interfering with the current working tree.

gitworkspace-managementparallel-developmentbranch-management
CodingCossack
CodingCossack
2

verification-before-completion

Verification discipline for completion claims. Use when about to assert success, claim a fix is complete, report tests passing, or before commits and PRs. Enforces evidence-first workflow.

evidence-basedpre-commit-checksworkflow-enforcementcompletion-verification
CodingCossack
CodingCossack
2

writing-plans

Structured implementation planning for multi-step development tasks. Use when you have a spec or requirements and need to break work into executable steps.

implementation-plantask-decompositionmulti-step-tasksdevelopment-planning
CodingCossack
CodingCossack
2

executing-plans

Disciplined plan execution for implementation tasks. Use when executing a saved implementation plan, following step-by-step instructions from a plan document.

plan-executionstep-by-stepimplementationprocess-management
CodingCossack
CodingCossack
2

brainstorming

Collaborative design exploration that refines ideas into validated specs through iterative questioning. Use before any creative work including creating features, building components, adding functionality, or modifying behavior.

brainstormingcollaborative-ideationiterative-questioningidea-refinement
CodingCossack
CodingCossack
2

using-superpowers

Meta-skill enforcing skill discovery and invocation discipline through mandatory workflows. Use when starting any conversation to check for relevant skills before any response, ensuring skill-first workflow before proceeding.

skill-invocationworkflow-automationskill-discoveryconversation-initiation
CodingCossack
CodingCossack
2

subagent-driven-development

Sequential subagent execution with two-stage review gates for implementation plans. Use when executing multi-task plans in current session, when tasks need fresh subagent context to avoid pollution, when formal review cycles (spec compliance then code quality) are required between tasks, or when you need diff-based validation of each task before proceeding.

subagentstask-decompositionreview-checkpointsdiff-validation
CodingCossack
CodingCossack
2

systematic-debugging

Root cause analysis for debugging. Use when bugs, test failures, or unexpected behavior have non-obvious causes, or after multiple fix attempts have failed.

root-cause-analysisdebuggingbug-triageerror-handling
CodingCossack
CodingCossack
2

test-driven-development

Red-green-refactor development methodology requiring verified test coverage. Use for feature implementation, bugfixes, refactoring, or any behavior changes where tests must prove correctness.

test-driven-developmentred-green-refactortest-coveragebehavior-driven-development
CodingCossack
CodingCossack
2

requesting-code-review

Use when you need to request a code review for a PR/MR and want a consistent review brief (context, scope, risk areas, test instructions, acceptance criteria) before merge.

pull-requestcode-reviewreview-briefdeveloper-guidance
CodingCossack
CodingCossack
2

finishing-a-development-branch

Git branch completion workflow. Use when implementation is complete, tests pass, and a feature branch needs to be integrated via merge, pull request, or cleanup.

gitbranch-managementmergepull-request
CodingCossack
CodingCossack
2

writing-skills

Use when creating new skills, editing existing skills, or verifying skills work before deployment

writing-skillsskill-editingskill-verificationcontent-creation
CodingCossack
CodingCossack
2

receiving-code-review

Assesses and responds to incoming code review feedback on PRs (reviewer comments, requested changes), especially when suggestions are unclear, technically questionable, or scope-expanding. Use before implementing review suggestions to align on intent and keep changes minimal.

pull-requestsreview-commentscode-feedbackcollaboration
CodingCossack
CodingCossack
2

dispatching-parallel-agents

Dispatches one subagent per independent domain to parallelize investigation/fixes. Use when you have 2+ unrelated failures (e.g., separate failing test files, subsystems, bugs) with no shared state or ordering dependencies.

parallelismsubagentsmulti-agent-systemstask-dispatch
CodingCossack
CodingCossack
2

file-organizer

Intelligently organizes files and directories by type, project, date, or custom criteria

file-organizationdirectory-managementfile-classificationcustom-criteria
onlyoneaman
onlyoneaman
21

code-review

Reviews code for best practices, bugs, security issues, and provides improvement suggestions

code-qualitysecuritybug-detectiondeveloper-guidance
onlyoneaman
onlyoneaman
21

git-helper

Assists with git workflows, commit messages, branch strategies, and resolving common git issues

gitcommit-messagebranch-managementversion-control
onlyoneaman
onlyoneaman
21

api-tester

Makes HTTP requests to any URL and returns the response (supports GET, POST, PUT, PATCH, DELETE)

httprestapi-testingget
onlyoneaman
onlyoneaman
21

skill-creator

Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Claude's capabilities with specialized knowledge, workflows, or tool integrations.

skill-designdeveloper-guidanceworkflow-automationtool-integration
tenlisboa
tenlisboa
2

python-fastapi-ai

Python FastAPI patterns, Alembic migrations, Pydantic v2, and AI Engineering (raw patterns, LangChain, Google ADK). This skill should be used when working with Python APIs, database migrations, or AI/LLM applications.

pythonfastapialembicpydantic
tenlisboa
tenlisboa
2

product-management

MANDATORY for ANY code change. MUST invoke BEFORE writing/editing code. Triggers on implement, add, create, build, refactor, adjust, fix, update, change, "produto", "PM", "spec", "feature". Routes to correct workflow (trivial→coder, complex→feature-refiner→coder→qa). CRITICAL - When active, you are the PM, NEVER implement code yourself. ALWAYS delegate to coder agent. Your role is orchestration ONLY.

workflow-automationdelegationfeature-prioritizationorchestration
tenlisboa
tenlisboa
2

php-laravel

Laravel 12 best practices, Eloquent patterns, service classes, Form Requests, and PHP 8.x features. Use when working with Laravel projects, controllers, models, migrations, or any PHP backend code.

laravelphp8eloquentmvc
tenlisboa
tenlisboa
2

atomic-commits

Creates semantic atomic commits using Conventional Commits. Use always when committing changes, staging files, or when asked to commit code. Analyzes diffs, suggests scope, and can split changes into granular commits.

gitcommit-messageconventional-commitscode-quality
tenlisboa
tenlisboa
2

react

Modern React 18+ patterns with TypeScript, hooks, state management, and performance optimization. This skill should be used when building React components, debugging frontend issues, or reviewing React code. (user)

reacttypescripthooksstate-management
tenlisboa
tenlisboa
2

allegro-monitor

Monitor Allegro.pl prices and get alerts when items drop below your threshold.

price-monitoringalertse-commerceallegro.pl
nexty5870
nexty5870
2

deep-researcher

Performs comprehensive, multi-layered research on any topic with structured analysis and synthesis of information from multiple sources. Use when the user needs thorough investigation, market research, technical deep-dives, due diligence, or comprehensive analysis on any subject.

multi-source-verificationstructured-analysiscomprehensive-researchdue-diligence
ksd
ksd
2

test-skill

Brief description of what this skill does and when to use it.

test-case-generationtest-scenariostest-planning
your-name
your-name
2

game-loop

Server-side game loop implementation with fixed timestep, physics simulation, and tick rate optimization

gameserverphysics-simulationtick-rate
pluginagentmarketplace
pluginagentmarketplace
2

security-encryption

Game server security including encryption, anti-cheat, and secure communication

encryptionanti-cheatgame-server-securitysecure-communication
pluginagentmarketplace
pluginagentmarketplace
2

databases

Game data persistence with player profiles, leaderboards, inventory systems using Redis and PostgreSQL

redispostgresqlpersistenceplayer-profiles
pluginagentmarketplace
pluginagentmarketplace
2

communication-protocols

Game server communication protocols including gRPC, REST, and custom binary protocols

gRPCRESTcustom-binary-protocolscommunication-protocols
pluginagentmarketplace
pluginagentmarketplace
2

deployment

Game server deployment with Docker, Kubernetes, and global distribution strategies

dockerkubernetesglobal-distributiongame-server
pluginagentmarketplace
pluginagentmarketplace
2

programming-languages

Core programming languages for game server development including C++, C#, Go, Rust

c++c#gorust
pluginagentmarketplace
pluginagentmarketplace
2

io-multiplexing

High-performance I/O multiplexing including epoll, IOCP, kqueue, and io_uring

io-multiplexingepolliocpkqueue
pluginagentmarketplace
pluginagentmarketplace
2

design-patterns

Game server design patterns including ECS, command pattern, and event sourcing

design-patternsecscommand-patternevent-sourcing
pluginagentmarketplace
pluginagentmarketplace
2

matchmaking

Skill-based matchmaking systems, ranking algorithms, and queue management for fair multiplayer matches

ranking-algorithmsqueue-managementfair-matchingmultiplayer
pluginagentmarketplace
pluginagentmarketplace
2

async-programming

Asynchronous programming models including coroutines, async/await, and reactive patterns

async-awaitcoroutinesreactive-programmingconcurrency
pluginagentmarketplace
pluginagentmarketplace
2

data-serialization

Efficient data serialization for game networking including Protobuf, FlatBuffers, and custom binary

serializationprotobufflatbuffersbinary-format
pluginagentmarketplace
pluginagentmarketplace
2

multithreading

Multithreading and concurrency patterns for game servers including synchronization primitives

concurrencymultithreadingsynchronization-primitivesgame-server
pluginagentmarketplace
pluginagentmarketplace
2

state-sync

Game state synchronization, snapshot systems, and conflict resolution for consistent multiplayer experience

state-syncmultiplayersnapshot-systemconflict-resolution
pluginagentmarketplace
pluginagentmarketplace
2

message-queues

Message queue systems for game servers including Kafka, RabbitMQ, and actor models

message-queuekafkarabbitmqactor-model
pluginagentmarketplace
pluginagentmarketplace
2

networking

Game networking protocols, WebSocket/UDP implementation, latency optimization for real-time multiplayer

network-protocolswebsocketudplatency-optimization
pluginagentmarketplace
pluginagentmarketplace
2

monitoring

Game server monitoring with metrics, alerting, and performance tracking for production reliability

metricsalertingperformance-trackinggame-server
pluginagentmarketplace
pluginagentmarketplace
2

socket-programming

Low-level socket programming including BSD sockets, Winsock, and network byte manipulation

socket-programmingBSD-socketsWinsocknetwork-byte-order
pluginagentmarketplace
pluginagentmarketplace
2

security-review

Security review checklist for code changes. Automatically activates when reviewing security-sensitive code, authentication, authorization, or data handling.

security-reviewcode-reviewauthenticationauthorization
ken2403
ken2403
2

code-quality

Code quality standards for reviewing code changes. Automatically provides quality checklist when reviewing PRs, implementing features, or discussing code quality.

code-qualityquality-standardspull-requestschecklist
ken2403
ken2403
2

novel-creator

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novelstory-creationfiction-writingnarrative-development
mave99a
mave99a
22

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Adoption

Agent Skills are supported by leading AI development tools.

FAQ

Frequently asked questions about Agent Skills.

01

What are Agent Skills?

Agent Skills are reusable, production-ready capability packs for AI agents. Each skill lives in its own folder and is described by a SKILL.md file with metadata and instructions.

02

What does this agent-skills.md site do?

Agent Skills is a curated directory that indexes skill repositories and lets you browse, preview, and download skills in a consistent format.

03

Where are skills stored in a repo?

By default, the site scans the skills/ folder. You can also submit a URL that points directly to a specific skills folder.

04

What is required inside SKILL.md?

SKILL.md must include YAML frontmatter with at least name and description. The body contains the actual guidance and steps for the agent.

05

How can I submit a repo?

Click Submit in the header and paste a GitHub URL that points to a skills folder. We’ll parse it and add any valid skills to the directory.