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Agent skills

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

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brainstorming You MUST use this before any creative work - creating features, building components, adding functionality, or modifying behavior. Explores user intent, requirements and design before implementation.
ederheisler/agent-skills
test-driven-development Use when implementing any feature or bugfix, before writing implementation code
ederheisler/agent-skills
fastapi Build Python APIs with FastAPI, Pydantic v2, and SQLAlchemy 2.0 async. Covers project structure, JWT auth, validation, and database integration with uv package manager. Prevents 7 documented errors. Use when: creating Python APIs, implementing JWT auth, or troubleshooting 422 validation, CORS, async blocking, form data, background tasks, or OpenAPI schema errors.
ederheisler/agent-skills
documentation-generation You are a documentation expert specializing in creating comprehensive, maintainable documentation from code. Generate API docs, architecture diagrams, user guides, and technical references using AI...
ederheisler/agent-skills
session-behavior
ederheisler/agent-skills
mcp-builder Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools. Use when building MCP servers to integrate external APIs or services, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).
ederheisler/agent-skills
terraform-search-import Adopt existing infrastructure into OpenTofu or Terraform state. Use when importing unmanaged resources, reconciling state with real infrastructure, auditing what already exists, or migrating manually created resources into IaC. In OpenTofu environments, prefer manual discovery plus import blocks or tofu import; do not default to Terraform Search or terraform query unless the user explicitly works in Terraform and that feature is available.
ederheisler/agent-skills
canvas-design Create beautiful visual art in .png and .pdf documents using design philosophy. You should use this skill when the user asks to create a poster, piece of art, design, or other static piece. Create original visual designs, never copying existing artists' work to avoid copyright violations.
ederheisler/agent-skills
writing-plans Use when you have a spec or requirements for a multi-step task, before touching code
ederheisler/agent-skills
systematic-debugging Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
ederheisler/agent-skills
tailwind-v4-shadcn Set up Tailwind v4 with shadcn/ui using @theme inline pattern and CSS variable architecture. Four-step pattern: CSS variables, Tailwind mapping, base styles, automatic dark mode. Prevents 8 documented errors. Use when initializing React projects with Tailwind v4, or fixing colors not working, tw-animate-css errors, @theme inline dark mode conflicts, @apply breaking, v3 migration issues.
ederheisler/agent-skills
pdf Comprehensive PDF manipulation toolkit for extracting text and tables, creating new PDFs, merging/splitting documents, and handling forms. When the agent needs to fill in a PDF form or programmatically process, generate, or analyze PDF documents at scale.
ederheisler/agent-skills
writing-quality-tests Guide for writing robust, high-signal automated tests. Use when asking "How do I test this effectively?", fixing flaky tests, refactoring test suites, or deciding between unit/integration/E2E strategies. distinct from TDD (process); this skill focuses on test quality and architecture.
ederheisler/agent-skills
verification-before-completion Use when about to claim work is complete, fixed, or passing, before committing or creating PRs - requires running verification commands and confirming output before making any success claims; evidence before assertions always
ederheisler/agent-skills
writing-skills Use when creating new skills, editing existing skills, or verifying skills work before deployment
ederheisler/agent-skills
quality-gates Python code quality gates script for linting, type checking, complexity analysis, and testing before commits. Use when enforcing consistent code quality across Python projects with fast (unit-tests) or comprehensive (all-tests) modes.
ederheisler/agent-skills
postgres PostgreSQL best practices, query optimization, connection troubleshooting, and performance improvement. Load when working with Postgres databases.
ederheisler/agent-skills
ask-questions-if-underspecified Clarify requirements before implementing. Use when serious doubts araise.
ederheisler/agent-skills
terraform-test Write and review OpenTofu tests using .tftest.hcl files and the tofu test command. Use when creating module tests, validating plan or apply behavior, checking outputs and validations, or troubleshooting OpenTofu test syntax and execution. In this repository, prefer OpenTofu commands and be cautious with apply-based tests against live OCI resources.
ederheisler/agent-skills
webapp-testing Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.
ederheisler/agent-skills
mysql Plan and review MySQL/InnoDB schema, indexing, query tuning, transactions, and operations. Use when creating or modifying MySQL tables, indexes, or queries; diagnosing slow/locking behavior; planning migrations; or troubleshooting replication and connection issues. Load when using a MySQL database.
ederheisler/agent-skills
frontend-design Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, artifacts, posters, or applications (examples include websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.
ederheisler/agent-skills
changelog-generator Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
ederheisler/agent-skills
visual-explainer Generate beautiful, self-contained HTML pages that visually explain systems, code changes, plans, and data. Use when the user asks for a diagram, architecture overview, diff review, plan review, project recap, comparison table, or any visual explanation of technical concepts. Also use proactively when you are about to render a complex ASCII table (4+ rows or 3+ columns) — present it as a styled HTML page instead.
ederheisler/agent-skills