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108+ skills loaded

WinkTechGive your agents an unfair advantage.

108+ ready-made SKILL.md files for Claude Code, Codex and other coding agents. Copy, download, ship.

Browse skills How it works

Free forever, no account needed.

Claude Code

Codex

Cursor

Gemini CLI

Copilot

Windsurf

Anthropic

Claude Code

Codex

Cursor

Gemini CLI

Copilot

Windsurf

Anthropic

/01

Pick a skill

Find a SKILL.md that matches your workflow.

/02

Drop it in

Save it to .claude/skills/ or your agent's skills folder.

/03

Agent levels up

Your agent follows the instructions automatically.

What is a SKILL.md?

Small file.
Serious capabilities.

Each skill has a short name and description at the top, followed by instructions. When your agent hits a matching task, it loads the skill and follows the steps — like handing a new teammate your playbook.

Plug & play

Drop a SKILL.md into your agent's skills folder and it works instantly. No setup, no config.

Works with every agent

Claude Code, Codex, Cursor, Gemini CLI and more all read the same Markdown format.

Battle-tested prompts

Every skill is written as clear, step-by-step instructions agents follow reliably.

Loaded on demand

Agents only read a skill when the task needs it, so your context stays clean and fast.

Fully editable

It's just Markdown. Tweak any skill to match your team's conventions in seconds.

Free & open

Copy or download any skill. No account, no paywall, no tracking.

THE TOOLKIT

Skill library/108

108 skills available

Code

PR Reviewer

Review pull requests for bugs, security issues and style.

---
name: pr-reviewer
description: Review pull requests for bugs, security issues and style.
---

# PR Reviewer

## When to use
Review pull requests for bugs, security issues and style.

## Instructions
1. Read the full diff before commenting.
2. Flag security issues first, then logic bugs, then style.
3. Suggest concrete code fixes, not vague advice.

Code

Refactor Safely

Refactor code without changing behavior.

---
name: refactor-safely
description: Refactor code without changing behavior.
---

# Refactor Safely

## When to use
Refactor code without changing behavior.

## Instructions
1. Ensure tests cover the code first.
2. Make small steps, run tests after each.
3. Never mix refactors with feature changes.

Code

Perf Profiler

Find and fix performance bottlenecks.

---
name: perf-profiler
description: Find and fix performance bottlenecks.
---

# Perf Profiler

## When to use
Find and fix performance bottlenecks.

## Instructions
1. Measure first: profile before optimizing.
2. Look for N+1 queries and wasted re-renders.
3. Verify the fix with a before/after benchmark.

Code

Regex Builder

Build and test regular expressions safely.

---
name: regex-builder
description: Build and test regular expressions safely.
---

# Regex Builder

## When to use
Build and test regular expressions safely.

## Instructions
1. Ask for sample inputs and expected matches.
2. Prefer readable patterns over clever ones.
3. Always test against edge cases and empty input.

Code

i18n Extractor

Find hardcoded strings and move them to locale files.

---
name: i18n-extractor
description: Find hardcoded strings and move them to locale files.
---

# i18n Extractor

## When to use
Find hardcoded strings and move them to locale files.

## Instructions
1. Scan components for user-facing literals.
2. Use stable, namespaced keys.
3. Keep pluralization and interpolation intact.

Code

Dead Code Hunter

Find and safely remove unused code.

---
name: dead-code-hunter
description: Find and safely remove unused code.
---

# Dead Code Hunter

## When to use
Find and safely remove unused code.

## Instructions
1. Search for unreferenced exports and files.
2. Confirm no dynamic imports use the code.
3. Remove in small commits with tests green.

Code

Type Migrator

Migrate JavaScript files to TypeScript.

---
name: type-migrator
description: Migrate JavaScript files to TypeScript.
---

# Type Migrator

## When to use
Migrate JavaScript files to TypeScript.

## Instructions
1. Start with leaf modules, then work upward.
2. Prefer inference over explicit any.
3. Fix strict-mode errors one file at a time.

Code

API Client Generator

Generate typed API clients from an OpenAPI spec.

---
name: api-client-gen
description: Generate typed API clients from an OpenAPI spec.
---

# API Client Generator

## When to use
Generate typed API clients from an OpenAPI spec.

## Instructions
1. Read the spec and map endpoints to functions.
2. Generate request and response types.
3. Include error handling and retries.

Code

State Machine Designer

Model complex UI logic as explicit state machines.

---
name: state-machine-designer
description: Model complex UI logic as explicit state machines.
---

# State Machine Designer

## When to use
Model complex UI logic as explicit state machines.

## Instructions
1. List all states and transitions first.
2. Make impossible states unrepresentable.
3. Handle loading, error and empty states explicitly.

Code

Hook Extractor

Extract reusable React hooks from components.

---
name: hook-extractor
description: Extract reusable React hooks from components.
---

# Hook Extractor

## When to use
Extract reusable React hooks from components.

## Instructions
1. Identify stateful logic repeated across components.
2. Extract into a well-named custom hook.
3. Keep the hook pure and testable.

Code

Error Boundary Audit

Add and improve error handling across the app.

---
name: error-boundary-audit
description: Add and improve error handling across the app.
---

# Error Boundary Audit

## When to use
Add and improve error handling across the app.

## Instructions
1. Find unhandled promise rejections.
2. Add error boundaries around risky subtrees.
3. Log errors with useful context.

Code

Dependency Upgrader

Upgrade dependencies without breaking the build.

---
name: dependency-upgrader
description: Upgrade dependencies without breaking the build.
---

# Dependency Upgrader

## When to use
Upgrade dependencies without breaking the build.

## Instructions
1. Upgrade one major version at a time.
2. Read changelogs for breaking changes.
3. Run the full test suite after each step.

Code

Monorepo Splitter

Split a large codebase into packages.

---
name: monorepo-splitter
description: Split a large codebase into packages.
---

# Monorepo Splitter

## When to use
Split a large codebase into packages.

## Instructions
1. Draw the dependency graph first.
2. Extract leaf packages with no internal deps.
3. Keep a single source of truth for config.

Code

Bundle Shrinker

Reduce JavaScript bundle size.

---
name: bundle-shrinker
description: Reduce JavaScript bundle size.
---

# Bundle Shrinker

## When to use
Reduce JavaScript bundle size.

## Instructions
1. Analyze the bundle with a visualizer.
2. Replace heavy deps with lighter alternatives.
3. Code-split routes and lazy-load heavy components.

Code

CSS Modernizer

Modernize legacy CSS to current best practices.

---
name: css-modernizer
description: Modernize legacy CSS to current best practices.
---

# CSS Modernizer

## When to use
Modernize legacy CSS to current best practices.

## Instructions
1. Replace floats with flexbox and grid.
2. Use custom properties for theming.
3. Remove vendor prefixes handled by build tools.

Code

Form Builder

Build robust forms with validation.

---
name: form-builder
description: Build robust forms with validation.
---

# Form Builder

## When to use
Build robust forms with validation.

## Instructions
1. Validate on blur, submit on valid only.
2. Show inline errors next to fields.
3. Handle async submission states.

Code

Table Builder

Build data tables with sorting and filtering.

---
name: table-builder
description: Build data tables with sorting and filtering.
---

# Table Builder

## When to use
Build data tables with sorting and filtering.

## Instructions
1. Keep sorting and filtering server-side when data is large.
2. Make columns resizable and reorderable.
3. Handle empty and loading states.

Code

CLI Scaffolder

Build command-line tools with good UX.

---
name: cli-scaffolder
description: Build command-line tools with good UX.
---

# CLI Scaffolder

## When to use
Build command-line tools with good UX.

## Instructions
1. Use clear subcommands and flags.
2. Print helpful errors with suggestions.
3. Support --help and --version.

Code

WebSocket Handler

Implement reliable realtime connections.

---
name: websocket-handler
description: Implement reliable realtime connections.
---

# WebSocket Handler

## When to use
Implement reliable realtime connections.

## Instructions
1. Handle reconnects with backoff.
2. Buffer messages during disconnection.
3. Version your message protocol.

Code

Cache Strategist

Design caching layers that stay correct.

---
name: cache-strategist
description: Design caching layers that stay correct.
---

# Cache Strategist

## When to use
Design caching layers that stay correct.

## Instructions
1. Define invalidation rules before caching.
2. Cache at the highest layer possible.
3. Add cache headers and ETags.

Testing

Test Writer

Write focused unit tests for new or changed code.

---
name: test-writer
description: Write focused unit tests for new or changed code.
---

# Test Writer

## When to use
Write focused unit tests for new or changed code.

## Instructions
1. Find the existing test framework and conventions.
2. Write one test per behavior with real values.
3. Run the tests and fix failures before finishing.

Testing

Bug Triage

Reproduce and isolate reported bugs.

---
name: bug-triage
description: Reproduce and isolate reported bugs.
---

# Bug Triage

## When to use
Reproduce and isolate reported bugs.

## Instructions
1. Reproduce the bug with minimal steps.
2. Write a failing test that captures it.
3. Fix the root cause, not the symptom.

Testing

A11y Checker

Audit UI code for accessibility issues.

---
name: a11y-checker
description: Audit UI code for accessibility issues.
---

# A11y Checker

## When to use
Audit UI code for accessibility issues.

## Instructions
1. Check labels, roles and keyboard navigation.
2. Verify color contrast ratios.
3. Test with a screen reader flow in mind.

Testing

E2E Scenarios

Design end-to-end test scenarios for user flows.

---
name: e2e-scenarios
description: Design end-to-end test scenarios for user flows.
---

# E2E Scenarios

## When to use
Design end-to-end test scenarios for user flows.

## Instructions
1. Map the happy path first, then failure modes.
2. Write scenarios in Given/When/Then form.
3. Keep each scenario independent and repeatable.

Testing

Mutation Tester

Measure real test quality with mutation testing.

---
name: mutation-tester
description: Measure real test quality with mutation testing.
---

# Mutation Tester

## When to use
Measure real test quality with mutation testing.

## Instructions
1. Run mutation testing on critical modules.
2. Kill surviving mutants with better assertions.
3. Track mutation score over time.

Testing

Snapshot Guardian

Keep snapshot tests useful instead of noisy.

---
name: snapshot-guardian
description: Keep snapshot tests useful instead of noisy.
---

# Snapshot Guardian

## When to use
Keep snapshot tests useful instead of noisy.

## Instructions
1. Review snapshot diffs like real code.
2. Keep snapshots small and focused.
3. Delete snapshots that never catch bugs.

Testing

Flaky Test Fixer

Find and fix nondeterministic tests.

---
name: flaky-test-fixer
description: Find and fix nondeterministic tests.
---

# Flaky Test Fixer

## When to use
Find and fix nondeterministic tests.

## Instructions
1. Run the suite repeatedly to find flakes.
2. Remove time and order dependencies.
3. Replace sleeps with explicit waits.

Testing

Contract Tester

Test API contracts between services.

---
name: contract-tester
description: Test API contracts between services.
---

# Contract Tester

## When to use
Test API contracts between services.

## Instructions
1. Define the contract from the provider spec.
2. Verify consumer expectations against it.
3. Fail CI on contract drift.

Testing

Load Test Designer

Design load tests that reflect real traffic.

---
name: load-test-designer
description: Design load tests that reflect real traffic.
---

# Load Test Designer

## When to use
Design load tests that reflect real traffic.

## Instructions
1. Model realistic user journeys.
2. Ramp load gradually and watch error rates.
3. Test at 2x expected peak.

Testing

Coverage Analyst

Use coverage data to find untested risk.

---
name: coverage-analyst
description: Use coverage data to find untested risk.
---

# Coverage Analyst

## When to use
Use coverage data to find untested risk.

## Instructions
1. Look at branch coverage, not just lines.
2. Prioritize uncovered critical paths.
3. Never chase 100% for its own sake.

Testing

Visual Regression

Catch unintended UI changes with screenshots.

---
name: visual-regression
description: Catch unintended UI changes with screenshots.
---

# Visual Regression

## When to use
Catch unintended UI changes with screenshots.

## Instructions
1. Snapshot key pages in stable states.
2. Mask dynamic content like dates.
3. Review diffs before approving.

Testing

Fuzz Tester

Fuzz parsers and input handling.

---
name: fuzz-tester
description: Fuzz parsers and input handling.
---

# Fuzz Tester

## When to use
Fuzz parsers and input handling.

## Instructions
1. Generate malformed and boundary inputs.
2. Assert no crashes or hangs.
3. Save crashing inputs as regression tests.

Git

Commit Messages

Write clear conventional commit messages.

---
name: commit-messages
description: Write clear conventional commit messages.
---

# Commit Messages

## When to use
Write clear conventional commit messages.

## Instructions
1. Use type(scope): summary under 72 chars.
2. Explain why in the body, not what.
3. Reference issue numbers when present.

Git

Conflict Resolver

Resolve merge conflicts without losing work.

---
name: git-conflict-resolver
description: Resolve merge conflicts without losing work.
---

# Conflict Resolver

## When to use
Resolve merge conflicts without losing work.

## Instructions
1. Understand both sides before editing.
2. Prefer the newer intent, keep both changes when needed.
3. Run tests after resolving.

Git

Branch Strategist

Design a branching model for the team.

---
name: branch-strategist
description: Design a branching model for the team.
---

# Branch Strategist

## When to use
Design a branching model for the team.

## Instructions
1. Keep main always releasable.
2. Use short-lived feature branches.
3. Automate releases from tags.

Git

History Rewriter

Clean up commit history before merging.

---
name: history-rewriter
description: Clean up commit history before merging.
---

# History Rewriter

## When to use
Clean up commit history before merging.

## Instructions
1. Squash fixup commits into logical units.
2. Never rewrite shared history.
3. Keep each commit buildable.

Git

Release Tagger

Tag and version releases consistently.

---
name: release-tagger
description: Tag and version releases consistently.
---

# Release Tagger

## When to use
Tag and version releases consistently.

## Instructions
1. Use semantic versioning.
2. Tag from the release commit, not a branch.
3. Generate the changelog from commits.

Git

Bisect Detective

Find the commit that introduced a bug.

---
name: bisect-detective
description: Find the commit that introduced a bug.
---

# Bisect Detective

## When to use
Find the commit that introduced a bug.

## Instructions
1. Write a script that detects the bug.
2. Run git bisect with the script.
3. Read the offending diff carefully.

Git

Monorepo Merger

Merge repositories while preserving history.

---
name: monorepo-merger
description: Merge repositories while preserving history.
---

# Monorepo Merger

## When to use
Merge repositories while preserving history.

## Instructions
1. Use git subtree or filter-repo.
2. Rewrite paths before merging.
3. Verify CI passes on the merged repo.

Docs

API Docs

Generate Markdown docs for HTTP endpoints.

---
name: api-docs
description: Generate Markdown docs for HTTP endpoints.
---

# API Docs

## When to use
Generate Markdown docs for HTTP endpoints.

## Instructions
1. List method, path, params and response.
2. Include one curl example per endpoint.
3. Document error codes.

Docs

Changelog Writer

Write user-friendly release notes from commits.

---
name: changelog-writer
description: Write user-friendly release notes from commits.
---

# Changelog Writer

## When to use
Write user-friendly release notes from commits.

## Instructions
1. Group changes by Added, Fixed, Changed.
2. Write for users, not developers.
3. Link to relevant pull requests.

Docs

Code Explainer

Explain unfamiliar code in plain language.

---
name: code-explainer
description: Explain unfamiliar code in plain language.
---

# Code Explainer

## When to use
Explain unfamiliar code in plain language.

## Instructions
1. Start with what the code does, then how.
2. Trace one concrete example through the flow.
3. Call out non-obvious edge cases.

Docs

README Writer

Write READMEs that get people running fast.

---
name: readme-writer
description: Write READMEs that get people running fast.
---

# README Writer

## When to use
Write READMEs that get people running fast.

## Instructions
1. Lead with what the project does.
2. Include a copy-paste quickstart.
3. Document common errors and fixes.

Docs

ADR Writer

Write architecture decision records.

---
name: adr-writer
description: Write architecture decision records.
---

# ADR Writer

## When to use
Write architecture decision records.

## Instructions
1. State the context and constraints.
2. List alternatives considered.
3. Record the decision and consequences.

Docs

Onboarding Guide

Write docs that get new devs productive fast.

---
name: onboarding-guide
description: Write docs that get new devs productive fast.
---

# Onboarding Guide

## When to use
Write docs that get new devs productive fast.

## Instructions
1. List every setup step, tested on a clean machine.
2. Explain the architecture in one diagram.
3. Point to the first good issues.

Docs

Runbook Writer

Write operational runbooks for incidents.

---
name: runbook-writer
description: Write operational runbooks for incidents.
---

# Runbook Writer

## When to use
Write operational runbooks for incidents.

## Instructions
1. Start with symptoms and detection.
2. Give exact commands to diagnose.
3. Include rollback and escalation steps.

Docs

Glossary Builder

Build a shared vocabulary for the codebase.

---
name: glossary-builder
description: Build a shared vocabulary for the codebase.
---

# Glossary Builder

## When to use
Build a shared vocabulary for the codebase.

## Instructions
1. Define domain terms as the team uses them.
2. Link terms to the code that implements them.
3. Keep it short and searchable.

Docs

Tutorial Writer

Write step-by-step tutorials that work.

---
name: tutorial-writer
description: Write step-by-step tutorials that work.
---

# Tutorial Writer

## When to use
Write step-by-step tutorials that work.

## Instructions
1. Test every step on a fresh environment.
2. Show expected output after each step.
3. End with a working complete example.

Docs

Docs Migrator

Migrate docs between platforms or formats.

---
name: doc-migrator
description: Migrate docs between platforms or formats.
---

# Docs Migrator

## When to use
Migrate docs between platforms or formats.

## Instructions
1. Inventory all existing pages first.
2. Preserve links with redirects.
3. Verify code samples still run.

Data

SQL Migrations

Write safe, reversible database migrations.

---
name: sql-migrations
description: Write safe, reversible database migrations.
---

# SQL Migrations

## When to use
Write safe, reversible database migrations.

## Instructions
1. Avoid locking large tables.
2. Add columns as nullable first, backfill, then constrain.
3. Always include a down migration.

Data

DB Index Advisor

Recommend indexes from slow query patterns.

---
name: db-index-advisor
description: Recommend indexes from slow query patterns.
---

# DB Index Advisor

## When to use
Recommend indexes from slow query patterns.

## Instructions
1. Inspect the query plan first.
2. Index columns used in WHERE, JOIN and ORDER BY.
3. Warn about write amplification from too many indexes.

Data

Seed Data

Generate realistic seed data for development.

---
name: seed-data
description: Generate realistic seed data for development.
---

# Seed Data

## When to use
Generate realistic seed data for development.

## Instructions
1. Match the production schema and constraints.
2. Use believable names, dates and values.
3. Include edge cases: empty, long, and unicode values.

Data

Query Optimizer

Rewrite slow SQL queries for speed.

---
name: query-optimizer
description: Rewrite slow SQL queries for speed.
---

# Query Optimizer

## When to use
Rewrite slow SQL queries for speed.

## Instructions
1. Read the execution plan first.
2. Replace correlated subqueries with joins.
3. Verify results are identical before and after.

Data

Schema Designer

Design normalized database schemas.

---
name: schema-designer
description: Design normalized database schemas.
---

# Schema Designer

## When to use
Design normalized database schemas.

## Instructions
1. Model entities and relationships first.
2. Normalize to 3NF, denormalize deliberately.
3. Name tables and columns consistently.

Data

Pipeline Builder

Build reliable data pipelines.

---
name: data-pipeline-builder
description: Build reliable data pipelines.
---

# Pipeline Builder

## When to use
Build reliable data pipelines.

## Instructions
1. Make every step idempotent.
2. Validate data at each stage.
3. Alert on failures with context.

Data

CSV Cleaner

Clean and validate messy CSV imports.

---
name: csv-cleaner
description: Clean and validate messy CSV imports.
---

# CSV Cleaner

## When to use
Clean and validate messy CSV imports.

## Instructions
1. Detect encoding and delimiter issues.
2. Validate types and required columns.
3. Report rejected rows with reasons.

Data

ETL Debugger

Debug broken data pipelines.

---
name: etl-debugger
description: Debug broken data pipelines.
---

# ETL Debugger

## When to use
Debug broken data pipelines.

## Instructions
1. Find the first stage with bad output.
2. Compare row counts between stages.
3. Check for schema drift upstream.

Data

Backup Verifier

Verify backups actually restore.

---
name: backup-verifier
description: Verify backups actually restore.
---

# Backup Verifier

## When to use
Verify backups actually restore.

## Instructions
1. Restore to a scratch environment regularly.
2. Verify row counts and checksums.
3. Document the restore procedure.

Data

Data Anonymizer

Anonymize production data for dev use.

---
name: anonymizer
description: Anonymize production data for dev use.
---

# Data Anonymizer

## When to use
Anonymize production data for dev use.

## Instructions
1. Identify all PII columns.
2. Replace with realistic fake values.
3. Keep referential integrity intact.

DevOps

Deploy Checklist

Run a pre-deploy checklist before shipping.

---
name: deploy-checklist
description: Run a pre-deploy checklist before shipping.
---

# Deploy Checklist

## When to use
Run a pre-deploy checklist before shipping.

## Instructions
1. Confirm CI is green.
2. Check env vars exist in production.
3. Prepare a rollback plan.

DevOps

Docker Optimizer

Shrink and harden Docker images.

---
name: docker-optimizer
description: Shrink and harden Docker images.
---

# Docker Optimizer

## When to use
Shrink and harden Docker images.

## Instructions
1. Use multi-stage builds and slim base images.
2. Order layers for maximum cache hits.
3. Run as a non-root user.

DevOps

CI Fixer

Diagnose and fix failing CI pipelines.

---
name: ci-fixer
description: Diagnose and fix failing CI pipelines.
---

# CI Fixer

## When to use
Diagnose and fix failing CI pipelines.

## Instructions
1. Read the full failure log before changing anything.
2. Reproduce the failure locally when possible.
3. Fix the cause, not just the red checkmark.

DevOps

K8s Troubleshooter

Debug Kubernetes workload issues.

---
name: k8s-troubleshooter
description: Debug Kubernetes workload issues.
---

# K8s Troubleshooter

## When to use
Debug Kubernetes workload issues.

## Instructions
1. Check pod status and events first.
2. Read logs from the failing container.
3. Verify resource limits and probes.

DevOps

Terraform Reviewer

Review infrastructure-as-code changes.

---
name: terraform-reviewer
description: Review infrastructure-as-code changes.
---

# Terraform Reviewer

## When to use
Review infrastructure-as-code changes.

## Instructions
1. Read the plan output, not just the diff.
2. Flag destructive changes loudly.
3. Check state impacts and drift.

DevOps

Log Investigator

Find root causes in application logs.

---
name: log-investigator
description: Find root causes in application logs.
---

# Log Investigator

## When to use
Find root causes in application logs.

## Instructions
1. Start from the error timestamp and work backward.
2. Correlate request IDs across services.
3. Distinguish symptoms from causes.

DevOps

Secret Rotator

Rotate credentials without downtime.

---
name: secret-rotator
description: Rotate credentials without downtime.
---

# Secret Rotator

## When to use
Rotate credentials without downtime.

## Instructions
1. Support overlapping old and new credentials.
2. Update consumers before revoking.
3. Audit access after rotation.

DevOps

Uptime Monitor

Set up monitoring and alerting that matters.

---
name: uptime-monitor
description: Set up monitoring and alerting that matters.
---

# Uptime Monitor

## When to use
Set up monitoring and alerting that matters.

## Instructions
1. Alert on user impact, not noise.
2. Set SLOs before thresholds.
3. Test alerts actually fire.

DevOps

Incident Responder

Respond to production incidents calmly.

---
name: incident-responder
description: Respond to production incidents calmly.
---

# Incident Responder

## When to use
Respond to production incidents calmly.

## Instructions
1. Mitigate first, investigate second.
2. Communicate status early and often.
3. Write a blameless postmortem.

DevOps

Cloud Cost Optimizer

Reduce cloud spend without hurting reliability.

---
name: cost-optimizer
description: Reduce cloud spend without hurting reliability.
---

# Cloud Cost Optimizer

## When to use
Reduce cloud spend without hurting reliability.

## Instructions
1. Find idle and oversized resources.
2. Use spot instances for fault-tolerant work.
3. Set budget alerts per service.

DevOps

Env Parity Checker

Keep dev, staging and prod in sync.

---
name: env-parity-checker
description: Keep dev, staging and prod in sync.
---

# Env Parity Checker

## When to use
Keep dev, staging and prod in sync.

## Instructions
1. Diff env vars and config across environments.
2. Version infrastructure as code.
3. Fail deploys on missing config.

DevOps

Rollback Planner

Plan safe rollbacks for every deploy.

---
name: rollback-planner
description: Plan safe rollbacks for every deploy.
---

# Rollback Planner

## When to use
Plan safe rollbacks for every deploy.

## Instructions
1. Make deploys reversible by default.
2. Keep database changes backward compatible.
3. Practice the rollback before you need it.

Security

Security Audit

Scan code for common vulnerabilities and leaks.

---
name: security-audit
description: Scan code for common vulnerabilities and leaks.
---

# Security Audit

## When to use
Scan code for common vulnerabilities and leaks.

## Instructions
1. Check for hardcoded secrets and tokens.
2. Review auth checks on every route and query.
3. Flag injection, XSS and unsafe deserialization.

Security

Auth Reviewer

Review authentication and session handling.

---
name: auth-reviewer
description: Review authentication and session handling.
---

# Auth Reviewer

## When to use
Review authentication and session handling.

## Instructions
1. Check token storage and expiry.
2. Verify password hashing is modern.
3. Test logout and session invalidation.

Security

Dependency Auditor

Audit dependencies for known vulnerabilities.

---
name: dependency-auditor
description: Audit dependencies for known vulnerabilities.
---

# Dependency Auditor

## When to use
Audit dependencies for known vulnerabilities.

## Instructions
1. Run the package auditor and read each advisory.
2. Upgrade or patch affected packages.
3. Check transitive dependencies too.

Security

Input Validator

Validate all external input at the boundary.

---
name: input-validator
description: Validate all external input at the boundary.
---

# Input Validator

## When to use
Validate all external input at the boundary.

## Instructions
1. Validate type, length and format.
2. Reject unknown fields by default.
3. Never trust client-side validation alone.

Security

CORS Configurer

Configure CORS without opening holes.

---
name: cors-configurer
description: Configure CORS without opening holes.
---

# CORS Configurer

## When to use
Configure CORS without opening holes.

## Instructions
1. Allow specific origins, never wildcard with credentials.
2. Limit methods and headers.
3. Test preflight behavior.

Security

Rate Limiter

Add rate limiting to sensitive endpoints.

---
name: rate-limiter
description: Add rate limiting to sensitive endpoints.
---

# Rate Limiter

## When to use
Add rate limiting to sensitive endpoints.

## Instructions
1. Limit by user and by IP.
2. Return clear 429 responses with retry hints.
3. Protect login and signup hardest.

Security

Secrets Scanner

Find leaked secrets in code and history.

---
name: secrets-scanner
description: Find leaked secrets in code and history.
---

# Secrets Scanner

## When to use
Find leaked secrets in code and history.

## Instructions
1. Scan the working tree and git history.
2. Rotate any secret that ever shipped.
3. Add pre-commit scanning.

Security

Headers Hardening

Set secure HTTP headers everywhere.

---
name: headers-hardening
description: Set secure HTTP headers everywhere.
---

# Headers Hardening

## When to use
Set secure HTTP headers everywhere.

## Instructions
1. Add CSP, HSTS and X-Content-Type-Options.
2. Remove server version headers.
3. Test with a security header scanner.

Security

XSS Hunter

Find and fix cross-site scripting risks.

---
name: xss-hunter
description: Find and fix cross-site scripting risks.
---

# XSS Hunter

## When to use
Find and fix cross-site scripting risks.

## Instructions
1. Audit every place user input reaches the DOM.
2. Use framework escaping, avoid dangerouslySetInnerHTML.
3. Add a strict Content Security Policy.

Security

SQL Injection Guard

Eliminate SQL injection risks.

---
name: sql-injection-guard
description: Eliminate SQL injection risks.
---

# SQL Injection Guard

## When to use
Eliminate SQL injection risks.

## Instructions
1. Use parameterized queries everywhere.
2. Audit raw SQL and string concatenation.
3. Add tests with malicious input.

Prompt Engineer

Write reliable prompts for LLM features.

---
name: prompt-engineer
description: Write reliable prompts for LLM features.
---

# Prompt Engineer

## When to use
Write reliable prompts for LLM features.

## Instructions
1. State the task, constraints and output format.
2. Include few-shot examples for structure.
3. Test with adversarial inputs.

RAG Builder

Build retrieval-augmented generation pipelines.

---
name: rag-builder
description: Build retrieval-augmented generation pipelines.
---

# RAG Builder

## When to use
Build retrieval-augmented generation pipelines.

## Instructions
1. Chunk documents with overlap.
2. Embed and index with metadata.
3. Cite sources in every answer.

Eval Designer

Design evaluations for AI features.

---
name: eval-designer
description: Design evaluations for AI features.
---

# Eval Designer

## When to use
Design evaluations for AI features.

## Instructions
1. Build a golden dataset from real cases.
2. Measure accuracy, latency and cost.
3. Fail CI on regressions.

Agent Designer

Design multi-step agent workflows.

---
name: agent-designer
description: Design multi-step agent workflows.
---

# Agent Designer

## When to use
Design multi-step agent workflows.

## Instructions
1. Give the agent few, sharp tools.
2. Bound loops with step limits.
3. Log every tool call for debugging.

Context Optimizer

Keep LLM context small and relevant.

---
name: context-optimizer
description: Keep LLM context small and relevant.
---

# Context Optimizer

## When to use
Keep LLM context small and relevant.

## Instructions
1. Send only what the task needs.
2. Summarize long history.
3. Truncate deterministically, not randomly.

Guardrail Builder

Add safety guardrails to AI outputs.

---
name: guardrail-builder
description: Add safety guardrails to AI outputs.
---

# Guardrail Builder

## When to use
Add safety guardrails to AI outputs.

## Instructions
1. Validate output schema before use.
2. Filter PII and unsafe content.
3. Fall back gracefully on refusal.

Embedding Search

Build semantic search with embeddings.

---
name: embedding-search
description: Build semantic search with embeddings.
---

# Embedding Search

## When to use
Build semantic search with embeddings.

## Instructions
1. Pick an embedding model for your domain.
2. Normalize and store vectors with metadata.
3. Combine with keyword search for recall.

LLM Cost Tracker

Track and reduce LLM spending.

---
name: llm-cost-tracker
description: Track and reduce LLM spending.
---

# LLM Cost Tracker

## When to use
Track and reduce LLM spending.

## Instructions
1. Log tokens and cost per request.
2. Cache repeated queries.
3. Route simple tasks to smaller models.

Design

Design System Audit

Audit UI for design system consistency.

---
name: design-system-audit
description: Audit UI for design system consistency.
---

# Design System Audit

## When to use
Audit UI for design system consistency.

## Instructions
1. List every color, spacing and font value in use.
2. Map outliers to the nearest token.
3. Flag one-off components for consolidation.

Design

Dark Mode Implementer

Add dark mode without breaking themes.

---
name: dark-mode-implementer
description: Add dark mode without breaking themes.
---

# Dark Mode Implementer

## When to use
Add dark mode without breaking themes.

## Instructions
1. Use semantic tokens, never hardcoded colors.
2. Test every screen in both modes.
3. Respect the system preference by default.

Design

Motion Designer

Add purposeful animation to UI.

---
name: motion-designer
description: Add purposeful animation to UI.
---

# Motion Designer

## When to use
Add purposeful animation to UI.

## Instructions
1. Animate only state changes and attention.
2. Keep durations under 300ms for UI.
3. Respect prefers-reduced-motion.

Design

Responsive Fixer

Fix layouts that break on small screens.

---
name: responsive-fixer
description: Fix layouts that break on small screens.
---

# Responsive Fixer

## When to use
Fix layouts that break on small screens.

## Instructions
1. Test at 320px first.
2. Use fluid type and spacing.
3. Stack before you shrink.

Design

Icon Consistency

Make icon usage consistent across the app.

---
name: icon-consistency
description: Make icon usage consistent across the app.
---

# Icon Consistency

## When to use
Make icon usage consistent across the app.

## Instructions
1. Pick one icon set and stick to it.
2. Match stroke width and size.
3. Use semantic names for icons.

Design

Empty State Designer

Design helpful empty and error states.

---
name: empty-state-designer
description: Design helpful empty and error states.
---

# Empty State Designer

## When to use
Design helpful empty and error states.

## Instructions
1. Explain why the state is empty.
2. Offer one clear next action.
3. Keep the tone helpful, not cute.

Product

Feature Spec Writer

Write clear feature specifications.

---
name: feature-spec-writer
description: Write clear feature specifications.
---

# Feature Spec Writer

## When to use
Write clear feature specifications.

## Instructions
1. Start with the user problem.
2. Define acceptance criteria.
3. List what is explicitly out of scope.

Product

User Story Mapper

Break features into user stories.

---
name: user-story-mapper
description: Break features into user stories.
---

# User Story Mapper

## When to use
Break features into user stories.

## Instructions
1. Write stories as user goals.
2. Slice vertically, not by layer.
3. Prioritize by user value.

Product

Metrics Designer

Define metrics for a feature launch.

---
name: metrics-designer
description: Define metrics for a feature launch.
---

# Metrics Designer

## When to use
Define metrics for a feature launch.

## Instructions
1. Pick one north-star metric.
2. Add guardrail metrics.
3. Instrument before launch.

Product

Feedback Synthesizer

Turn user feedback into themes.

---
name: feedback-synthesizer
description: Turn user feedback into themes.
---

# Feedback Synthesizer

## When to use
Turn user feedback into themes.

## Instructions
1. Group feedback by underlying need.
2. Count frequency but weight by impact.
3. Quote users verbatim.

Product

Roadmap Planner

Plan a realistic product roadmap.

---
name: roadmap-planner
description: Plan a realistic product roadmap.
---

# Roadmap Planner

## When to use
Plan a realistic product roadmap.

## Instructions
1. Sequence by dependency, not desire.
2. Leave buffer for unknowns.
3. Review and adjust monthly.

Mobile

RN Debugger

Debug React Native issues across platforms.

---
name: rn-debugger
description: Debug React Native issues across platforms.
---

# RN Debugger

## When to use
Debug React Native issues across platforms.

## Instructions
1. Reproduce on both iOS and Android.
2. Check native logs, not just JS console.
3. Isolate bridge vs JS issues.

Mobile

App Store Checklist

Prepare an app for store submission.

---
name: app-store-checklist
description: Prepare an app for store submission.
---

# App Store Checklist

## When to use
Prepare an app for store submission.

## Instructions
1. Verify screenshots and metadata.
2. Test on the minimum supported OS.
3. Complete privacy declarations.

Mobile

Offline First

Make apps work without a connection.

---
name: offline-first
description: Make apps work without a connection.
---

# Offline First

## When to use
Make apps work without a connection.

## Instructions
1. Queue mutations locally.
2. Sync with conflict resolution.
3. Show connectivity state honestly.

Mobile

Push Notifications

Implement push notifications end to end.

---
name: push-notification-setup
description: Implement push notifications end to end.
---

# Push Notifications

## When to use
Implement push notifications end to end.

## Instructions
1. Request permission at the right moment.
2. Handle tokens and refresh.
3. Deep-link notifications into the app.

Web3

Contract Reviewer

Review smart contracts for common bugs.

---
name: contract-reviewer
description: Review smart contracts for common bugs.
---

# Contract Reviewer

## When to use
Review smart contracts for common bugs.

## Instructions
1. Check reentrancy and access control.
2. Verify arithmetic and overflow handling.
3. Review external call ordering.

Web3

Gas Optimizer

Reduce smart contract gas costs.

---
name: gas-optimizer
description: Reduce smart contract gas costs.
---

# Gas Optimizer

## When to use
Reduce smart contract gas costs.

## Instructions
1. Pack storage slots.
2. Prefer calldata over memory.
3. Cache storage reads in memory.

Web3

Token Integrator

Integrate token transfers into an app.

---
name: token-integrator
description: Integrate token transfers into an app.
---

# Token Integrator

## When to use
Integrate token transfers into an app.

## Instructions
1. Handle decimals correctly.
2. Check allowances before transfers.
3. Listen for confirmation events.

Web3

Wallet Connect Flow

Build a smooth wallet connection flow.

---
name: wallet-connect-flow
description: Build a smooth wallet connection flow.
---

# Wallet Connect Flow

## When to use
Build a smooth wallet connection flow.

## Instructions
1. Support multiple wallet providers.
2. Handle chain switching gracefully.
3. Show connection state clearly.

Make your agents smarter today

Browse skills

WinkTechGive your agents an unfair advantage.

Pick a skill

Drop it in

Agent levels up

Small file.Serious capabilities.

Plug & play

Works with every agent

Battle-tested prompts

Loaded on demand

Fully editable

Free & open

Skill library/108

PR Reviewer

Refactor Safely

Perf Profiler

Regex Builder

i18n Extractor

Dead Code Hunter

Type Migrator

API Client Generator

State Machine Designer

Hook Extractor

Error Boundary Audit

Dependency Upgrader

Monorepo Splitter

Bundle Shrinker

CSS Modernizer

Form Builder

Table Builder

CLI Scaffolder

WebSocket Handler

Cache Strategist

Test Writer

Bug Triage

A11y Checker

E2E Scenarios

Mutation Tester

Snapshot Guardian

Flaky Test Fixer

Contract Tester

Load Test Designer

Coverage Analyst

Visual Regression

Fuzz Tester

Commit Messages

Conflict Resolver

Branch Strategist

History Rewriter

Release Tagger

Bisect Detective

Monorepo Merger

API Docs

Changelog Writer

Code Explainer

README Writer

ADR Writer

Onboarding Guide

Runbook Writer

Glossary Builder

Tutorial Writer

Docs Migrator

SQL Migrations

DB Index Advisor

Seed Data

Query Optimizer

Schema Designer

Pipeline Builder

CSV Cleaner

ETL Debugger

Backup Verifier

Data Anonymizer

Deploy Checklist

Docker Optimizer

CI Fixer

K8s Troubleshooter

Terraform Reviewer

Log Investigator

Secret Rotator

Uptime Monitor

Incident Responder

Small file.
Serious capabilities.