Browse our curated library of 121+ SKILL.md files for AI agents. Download ready-to-use skills for Claude Code, Codex, OpenAI and more.
Design and implement cross-platform, conflict-free keyboard shortcut systems with proper scope, discoverability, and OS/browser safety.
Provides safe database operation guidelines for apps, covering parameterized queries, idempotent migrations, and transactional, rollback-capable writes.
Implement and optimize fast, relevant search with indexing, analyzers, and autocomplete across engines like Elasticsearch, Algolia, and Meilisearch.
Guides rapid understanding of unfamiliar codebases by mapping structure and dependencies so you can orient quickly before making changes.
Detects a project's code style (indentation, naming, quotes, formatting) and writes code that matches it, ensuring new code blends in.
Generates production-quality, idiomatic code that follows language conventions, naming, and project structure for seamless integration.
Systematically profile, identify bottlenecks, and apply measured optimizations (caching, lazy loading, algorithmic tweaks) to improve performance without guessing.
Implements robust boundary data validation using schemas, sanitization, and targeted error handling to ensure safe, well-formed input.
Advanced JSON manipulation: deep merges, path-based access, schema validation, diffs, and streaming for large files with lossless, ordered results.
Implements modern Clipboard API usage for copying and pasting rich or plain text with proper permissions, fallbacks, and content sanitization.
Generate pixel-accurate PDFs from templates or HTML using data-driven layouts, with compliance rules and digital signatures.
Integrates payment processing with Stripe and PayPal, handling webhooks, subscriptions, refunds, PCI compliance, currency, and tax calculations.
Identifies independent subtasks and executes them in parallel to speed up workflows while safeguarding shared state, avoiding conflicts, and merging results correctly.
Extract, parse, clean, and transform data from CSV, JSON, XML, and more, handling malformed input and streaming large files.
Automates package publishing to registries (npm, PyPI), enforcing SemVer, changelogs, pre-publish checks, and deprecation handling.
Preserve and reconstruct agent work across sessions using structured progress files, a git-based state journal, and clear decisions and rationale.
Design and implement event-driven architectures using pub/sub, event sourcing, message queues, and reliable event handlers.
Reads, debugs, and safely modifies CI/CD pipelines across GitHub Actions, GitLab CI, and CircleCI; ensures changes are incremental and testable.
Model complex workflows with state machines—defining states, transitions, guards, and hierarchies for predictable, debuggable agent behavior.
A practical guide to using ORMs across Prisma, Sequelize, SQLAlchemy, and TypeORM, covering relations, migrations, query optimization, and transactions.
Design and implement clean RESTful URL routing patterns, handling dynamic segments, path vs query parameters, and nested routes for maintainable web APIs.
Reads error messages end-to-end to locate root causes, navigates stack traces, and distinguishes environment issues from code bugs.
Design robust error handling with try/catch, error hierarchies, boundaries, graceful degradation, retries, and circuit breakers.
Prevents small mistakes from cascading in long task chains by inserting checkpoints, validating outcomes, and enabling early termination when issues are detected.
Creates save points, stash and backup branches before risky operations to enable fast rollback and reversibility.