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Open-source tools & agent skills to build the things you’re paying for.

Harbor

Project29.5K

Self-host a cloud-native registry for images and Helm charts, with access controls, replication, scanning, and audit logs.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Create an internal registry for container images and Helm charts, organized into projects with role-based access.
  • Configure filtered replication policies to synchronize selected repositories, tags, or labels between registry instances.
  • Use Harbor's vulnerability scanning and policy checks to prevent vulnerable images from being deployed.
  • Use Harbor's audit logs to trace operations performed on repositories.
  • Build an internal tool around Harbor's REST API for administrative tasks, such as managing projects or reviewing registry resources.

Try this prompt

Build a small internal release-intake workflow around a self-hosted Harbor registry. Let an authorized operator select a Harbor project and repository, review image tags and available scan results, and record an approval decision with the image reference and timestamp. Use Harbor's documented REST API where appropriate. Keep existing registry data intact: do not delete images, run garbage collection, or change project permissions. Include configuration guidance, error handling for unavailable API results, and a short test plan; do not assume undocumented endpoints or integrations.

Get started

  1. Choose a deployment route

    For a Linux host, the README lists Docker 20.10.10-ce or later and Docker Compose 1.18.0 or later as system requirements. Use the Harbor releases and Installation & Configuration Guide.

  2. Deploy on Kubernetes

    For Kubernetes deployment, the README directs users to the Harbor Helm chart. Consult the chart documentation and Harbor installation guide for deployment configuration.

  3. Plan integrations

    Review Harbor's REST API documentation for administrative operations and the compatibility list for replication, OIDC, and scanner adapters relevant to your setup.

License & notes

Apache-2.0Apache-2.0; commercial use is permitted subject to license obligations. Self-hosting requires infrastructure and storage, with associated compute, network, and operations costs. No model or paid API requirement is documented. Check licenses and costs for included or separately selected components.

  • Harbor is a registry, not a general code or dependency scanning platform; its documented vulnerability scanning concerns images.
  • Deployment requires self-managed infrastructure; storage, backups, upgrades, and scanner-adapter compatibility need planning.
  • The README notes that official images include open-source components with additional licensing terms; review those terms separately.

Systematic Debugging

Agent skill296.2K

Investigates bugs, test failures, production incidents, performance problems, and build errors through root-cause investigation before proposing fixes, followed by pattern analysis, hypothesis testing, and verification.

Added 2026-10-07
Works with
Claude Code, Codex +5
GitHub

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code-review

Agent skill279K

Reviews code changes against both repository standards and the originating task specification, using parallel focused review passes.

Added 2026-10-07
Works with
Claude Code, Other hosts
GitHub

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accessibility

Agent skill274.6K

A cross-platform accessibility skill for auditing and implementing WCAG 2.2 AA patterns on web, iOS, and Android interfaces.

Added 2026-10-07
Works with
Claude Code, Codex
GitHub

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azure-pipelines

Agent skill193.6K

Project-specific procedures for queueing VS Code Azure DevOps builds, checking status and logs, and iterating on failures.

Added 2026-10-07
Works with
GitHub Copilot
GitHub

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Ollama

Project182.4K

Run open models on your machine and connect them to applications through a REST API.

Added 2026-10-07
Replaces
GitHub

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QA and Bug Fixing

Agent skill135.6K

Runs a tiered quality check for browser, API, CLI, background job, worker, and webhook behavior. Quick, Standard, and Exhaustive modes let a team choose severity coverage, while the workflow expects verified fixes and clear outcomes rather than a checklist alone.

Added 2026-10-07
Works with
Claude Code with gstack tools
GitHub

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ui-ux-pro-max

Agent skill133.7K

Design reference system provides searchable UI styles, palettes, typography, charts and stack-specific implementation guidance.

Added 2026-10-07
Works with
Claude Code, Cursor +2
GitHub

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shadcn

Agent skill125.2K

Manages shadcn/ui components and projects by adding, searching, styling, debugging, and composing registry components.

Added 2026-10-07
Works with
Agent Skills-compatible hosts
GitHub

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Browser Use

Agent skill117.4K

Guides an agent using Browser Use for interactive browser automation, scraping, screenshots, testing, and site work through Chrome’s CDP, with explicit choices between local Chrome and remote browsers.

Added 2026-10-07
Works with
Codex
GitHub

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D3

Project113.8K

A low-level JavaScript toolkit for custom, data-driven graphics in SVG, Canvas, and HTML.

Added 2026-10-07
Replaces
GitHub

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Supabase

Project111.2K

Build Postgres-backed apps with authentication, APIs, realtime, storage, and functions.

Added 2026-10-07
Replaces
GitHub

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Whisper

Project110.1K

Build speech transcription, language identification, and translation workflows with an open-source model.

Added 2026-10-07
Replaces
GitHub

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FastAPI

Agent skill102.9K

Applies FastAPI conventions to API work involving Pydantic models, dependency injection, streaming, routing, response models, observability, and serving built frontend assets. Its quick reference routes tasks to focused documentation, helping agents use framework-native patterns rather than inventing them.

Added 2026-10-07
Format
SKILL.md
GitHub

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API and interface design

Agent skill102.3K

A detailed engineering workflow for designing stable APIs and module boundaries, with attention to backward compatibility, contracts, validation, and consumer expectations.

Added 2026-10-07
Works with
Claude Code, Cursor +3
GitHub

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Ecommerce Image Workflow

Agent skill99.8K

Creates a three-image ecommerce set from an uploaded product photo: a clean main packshot, a feature image, and a lifestyle scene. It locks product identity details before prompting, then records the inputs, aspect ratios, outputs, and fidelity notes in a manifest with an HTML preview gallery.

Added 2026-10-07
Works with
Claude Code (repository positioning; skill uses image-generation capability)
GitHub

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Playwright

Project97.2K

Build cross-browser end-to-end tests and browser automation scripts with one API.

Added 2026-10-07
Replaces
GitHub

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Puppeteer

Project95.7K

Build JavaScript workflows that control Chrome or Firefox.

Added 2026-10-07
Replaces
GitHub

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design-taste-frontend

Agent skill93.3K

A design-direction skill for landing pages and portfolios that guides brief interpretation, audit-first redesigns, and visual refinement.

Added 2026-10-07
Works with
Codex, Cursor +1
GitHub

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Uptime Kuma

Project92.2K

Self-hosted checks for websites, network services, DNS, containers, and push monitors.

Added 2026-10-07
Replaces
GitHub

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PaddleOCR

Project90.7K

Build OCR and document-parsing workflows that turn images and PDFs into structured data.

Added 2026-10-07
Replaces
GitHub

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Mermaid

Project90.6K

Create editable diagrams from Markdown-inspired text for documentation and JavaScript applications.

Added 2026-10-07
Replaces
GitHub

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Open guide

Syncthing

Project89.2K

Synchronize files between two or more computers, then adapt local workflows around those folders.

Added 2026-10-07
Replaces
GitHub

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Open guide

frontend-design

Agent skill83.5K

Frontend design guidance for producing distinctive production web interfaces rather than generic component layouts.

Added 2026-10-07
Works with
Claude Code, Codex
GitHub

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Netdata

Project80.8K

Open-source, real-time infrastructure monitoring with per-second metrics, anomaly detection, and alerting.

Added 2026-10-07
Replaces
GitHub

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Hoppscotch

Project80.6K

Develop APIs with reusable requests, collections, environments, and response tests.

Added 2026-10-07
Replaces
GitHub

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Open guide

A product-specific review process for assessing Archify issues, pull requests, and code against user value, engineering cost, and expected impact.

Added 2026-10-07
Works with
Claude Code, Codex
GitHub

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Open guide

Impeccable

Agent skill78K

Improves browser-rendered interfaces through separate design modes for audit, critique, polish, clarify, adapt, animate, and harden, with guidance on visual hierarchy, layout, typography, and implementation quality.

Added 2026-10-07
Works with
Claude Code, Codex +1
GitHub

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Grafana

Project77.1K

Query, visualize, and alert on telemetry across data sources.

Added 2026-10-07
Replaces
GitHub

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Tesseract OCR

Project76.8K

An open-source OCR engine for extracting text from images and building document workflows.

Added 2026-10-07
Replaces
GitHub

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Apache Superset

Project75.1K

Explore SQL data, build visualizations, and create dashboards with an extensible open-source BI platform.

Added 2026-10-07
Replaces
GitHub

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Creates and optimizes GitHub Actions pipelines with a constrained agent profile that limits file scope and operation budget and requires approval for production deployment, secret changes, and permission modifications.

Added 2026-10-07
Works with
Claude Code, Codex
GitHub

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career-ops

Agent skill73.7K

A local-first job-search command center routes across workflows for evaluating roles, tailoring CVs and tracking applications.

Added 2026-10-07
Works with
Claude Code, Codex +1
GitHub

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reveal.js

Project72.4K

An open-source HTML presentation framework for building browser-based slide decks.

Added 2026-10-07
Replaces
GitHub

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Open guide

Vaultwarden

Project68.6K

Self-hosted Bitwarden-compatible server for personal and organization password vaults.

Added 2026-10-07
Replaces
GitHub

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Docling

Project68.5K

Convert diverse documents and media into structured content for tools you build.

Added 2026-10-07
Replaces
GitHub

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Apache ECharts

Project67.5K

Build interactive, customizable charts for browser applications.

Added 2026-10-07
Replaces
GitHub

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Tests authorized REST, GraphQL, or gRPC APIs for OWASP API risks such as object-level authorization, excessive data exposure, function authorization, SSRF, and injection, then validates findings with request evidence.

Added 2026-10-07
Works with
Agent Skills-compatible coding agents (host list not explicit in pinned files).
GitHub

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Open guide

AnythingLLM

Project66.8K

Build a desktop or self-hosted AI workspace for document chat, agents, and recurring tasks.

Added 2026-10-07
Replaces
GitHub

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Open guide

Docusaurus

Project66.4K

Build and customize websites for project documentation, blogs, and support pages.

Added 2026-10-07
Replaces
GitHub

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Prometheus

Project66.4K

Collect, query and alert on metrics from your services and systems.

Added 2026-10-07
Replaces
GitHub

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