Agent skills

Skills you can use with AI coding agents, indexed from public GitHub repositories.

Latest Most Popular

security-engineer Expert in infrastructure security, DevSecOps pipelines, and zero-trust architecture design.
404kidwiz/claude-supercode-skills 66
csharp-developer .NET 8 and C# 12 specialist with expertise in ASP.NET Core, EF Core, and modern enterprise development. Use when building C# applications, working with .NET, implementing ASP.NET Core APIs, or using Entity Framework.
404kidwiz/claude-supercode-skills 66
dx-optimizer Expert in optimizing the end-to-end developer journey. Specializes in Internal Developer Portals (IDP), DORA metrics, and on-call health. Use when improving developer experience, building internal platforms, measuring engineering productivity, or reducing developer friction.
404kidwiz/claude-supercode-skills 66
market-researcher Market research specialist focused on comprehensive market analysis, consumer behavior insights, and market opportunity identification. Excels at quantitative market sizing, qualitative consumer research, and strategic market positioning analysis.
404kidwiz/claude-supercode-skills 66
database-optimizer Use when user needs database query optimization, performance tuning, index strategies, execution plan analysis, or scalability across PostgreSQL, MySQL, MongoDB, Redis, and other database systems.
404kidwiz/claude-supercode-skills 66
xlsx Expert in automating Excel workflows using Node.js (ExcelJS, SheetJS) and Python (pandas, openpyxl).
404kidwiz/claude-supercode-skills 66
debugger Expert at advanced debugging and root cause analysis. Use when troubleshooting complex issues, finding root causes of bugs, investigating performance problems, or analyzing system failures.
404kidwiz/claude-supercode-skills 66
chaos-engineer Expert in resilience testing, fault injection, and building anti-fragile systems using controlled experiments.
404kidwiz/claude-supercode-skills 66
api-designer REST/GraphQL API architect specializing in OpenAPI 3.1, HATEOAS, pagination, and versioning strategies
404kidwiz/claude-supercode-skills 66
project-manager Project management expert specializing in planning, execution, monitoring, and closure of projects. Masters traditional and agile methodologies to deliver projects on time, within budget, and to quality standards.
404kidwiz/claude-supercode-skills 66
fix-it-never-work-around-it Stops execution and fixes root cause when commands, builds, scripts, or tools fail unexpectedly. Triggers on workaround language: 'directly', 'instead', 'alternatively', 'skip', 'fall back', 'work around', 'isn't working', 'broken', 'manually'. Activates on any unexpected non-zero exit code or process failure.
NTCoding/claude-skillz 290
typescript-backend-project-setup Sets up NX monorepo for TypeScript backend projects optimized for AI-assisted development. Delegates to NX commands where possible, patches configs as last resort. Triggers on: 'set up typescript backend project', 'create backend project', 'initialize typescript backend', 'create monorepo', or when working in an empty project folder.
NTCoding/claude-skillz 290
critical-peer-personality Professional, skeptical communication style. Never over-enthusiastic, verifies before agreeing, challenges constructively, proposes instead of asking preferences. Expert peer who coaches, not serves. Triggers on: composing responses, agreeing with user, making recommendations, giving feedback.
NTCoding/claude-skillz 290
lightweight-task-workflow FOLLOW THE STATE MACHINE IN SKILL.MD. When user says 'continue': (1) FIRST: Run pwd, (2) Announce STATE: CHECK_STATUS, (3) Read .claude/session.md to check Status field, (4) Route based on Status. NEVER auto-advance tasks. NEVER use TodoWrite. NEVER create git commits.
NTCoding/claude-skillz 290
questions-are-not-instructions Engage with what the user said before taking action. Triggers on: questions ('?'), feedback ('this is wrong', 'that doesn't look right', 'there are issues'), challenges ('why did you', 'have you considered'), criticism ('this isn't working', 'I don't like'), observations ('I notice', 'it seems like'), naming a skill or concept. STOP and respond to the user's actual words before doing anything.
NTCoding/claude-skillz 290
lightweight-design-analysis This skill analyzes code for design quality improvements across 8 dimensions: Naming, Object Calisthenics, Coupling & Cohesion, Immutability, Domain Integrity, Type System, Simplicity, and Performance. Ensures rigorous, evidence-based analysis by: (1) Understanding code flow first via implementation-analysis protocol, (2) Systematically evaluating each dimension with specific criteria, (3) Providing actionable findings with file:line references. Triggers when users request: code analysis, design review, refactoring opportunities, code quality assessment, architecture evaluation.
NTCoding/claude-skillz 290
software-design-principles Object-oriented design principles including object calisthenics, dependency inversion, fail-fast error handling, feature envy detection, and intention-revealing naming. Triggers on: writing new classes or functions, refactoring, code review, 'clean up', method longer than 10 lines, feature envy, primitive obsession, deep nesting.
NTCoding/claude-skillz 290
architect-refine-critique Three-phase design review. Chain architect → refiner → critique subagents. Triggers on: 'design review', 'architecture review', '/arc', system design proposals, significant refactoring decisions, new service or module design.
NTCoding/claude-skillz 290
tdd-process Strict test-driven development state machine with red-green-refactor cycles. Enforces test-first development, meaningful failures, minimum implementations, and full verification. Activates when user requests: 'use a TDD approach', 'start TDD', 'test-drive this'.
NTCoding/claude-skillz 290
separation-of-concerns Enforces code organization using features/ (verticals), platform/ (horizontals), and shell/ (thin wiring). Triggers on: code organization, file structure, where does this belong, new file creation, refactoring.
NTCoding/claude-skillz 290
observability-first-debugging Systematic debugging methodology that eliminates guessing and speculation. Add instrumentation to gather specific data that fully explains the problem. Evidence before hypothesis. Observation before solution. Triggers on: debugging, error investigation, 'why is this failing', unexpected behavior, test failures, non-zero exit codes, stack traces.
NTCoding/claude-skillz 290
create-tasks Creates well-formed tasks following a template that engineers can implement. Triggers on: 'create tasks', 'define work items', 'break this down', creating tasks from PRD, converting requirements into actionable tasks, feature breakdown, sprint planning.
NTCoding/claude-skillz 290
confidence-honesty Force honest confidence assessment before claiming conclusions. Triggers on 'root cause identified', 'problem identified', 'complete clarity'. Express confidence as percentage, explain what's stopping 100%, validate assumptions before presenting.
NTCoding/claude-skillz 290
data-visualization Comprehensive data visualization skill covering visual execution and technical implementation. Includes perceptual foundations, chart selection, layout algorithms, and library guidance. Triggers on: charts, graphs, dashboards, 'visualize', 'plot', data presentation, D3, Recharts, Victory.
NTCoding/claude-skillz 290