Fewer subscriptions.
More vibe-coding.

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

Lychee

Project4K

Check websites and documentation files for broken links with a CLI, library, or GitHub Action.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Build a pre-commit adapter that takes staged Markdown and reStructuredText paths, checks them with Lychee, and returns a failing status when links are broken.
  • Build a report tool that reads two Lychee JSON scan outputs, compares their findings, and writes a summary of new, persistent, and resolved broken links.
  • Build a triage script that maps source-file path prefixes in a Lychee JSON report to team names and outputs separate remediation lists for each team.
  • Build a batch runner that reads website URLs from a text file, checks each site with Lychee, and writes a combined JSON results file.
  • Build a small internal review app around lychee-lib that accepts supported documentation files and returns their link-check findings.

Try this prompt

Build a small end-to-end pre-commit adapter for a documentation repository. It should identify staged Markdown and reStructuredText files, pass only those files to Lychee, and return a clear failing status with actionable output when checks fail. Preserve all source files unchanged, handle an empty staged-file set cleanly, and document configuration and setup. Use documented Lychee interfaces; do not assume undocumented output fields or add unrelated features.

Get started

  1. Choose an installation route

    The README documents prebuilt Linux, macOS, and Windows binaries, package-manager options, Docker, and Cargo installation. Select the route that fits your environment.

  2. Select an integration

    For command-line checks, follow the README's command-line usage and linked CLI guide. For library use, consult the linked lychee-lib documentation and examples.

  3. Add it to a documentation workflow

    The README links to the Lychee GitHub Action and documents pre-commit usage. Follow those projects' setup instructions for the integration you choose.

License & notes

Apache-2.0Apache-2.0 permits commercial use. If you redistribute Lychee or a derivative, comply with the license, including providing the license and preserving applicable notices; mark modified files. No model or paid API is documented. Local runs use your compute and network; CI or hosted workflows use your infrastructure and may incur its usual costs.

  • Lychee checks links rather than providing a full technical SEO audit; results depend on endpoint reachability and the network environment. It does not promise page-content quality checks.
  • A hosted or CI workflow needs infrastructure you provide; the repository does not document a hosted service or bundled hosting. Use of remote endpoints may be subject to their access policies.

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

Ollama

Project182.4K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

D3

Project113.8K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Supabase

Project111.2K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Whisper

Project110.1K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

Playwright

Project97.2K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Puppeteer

Project95.7K

Build JavaScript workflows that control Chrome or Firefox.

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

Uptime Kuma

Project92.2K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

PaddleOCR

Project90.7K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Mermaid

Project90.6K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

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

Open the guide for build ideas and setup.

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

Open the guide for build ideas and setup.

Open guide

Netdata

Project80.8K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Hoppscotch

Project80.6K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

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

Open the guide for build ideas and setup.

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

Open the guide for build ideas and setup.

Open guide

Grafana

Project77.1K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Tesseract OCR

Project76.8K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

Open guide

reveal.js

Project72.4K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Vaultwarden

Project68.6K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Docling

Project68.5K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Apache ECharts

Project67.5K

Build interactive, customizable charts for browser applications.

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

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

Open the guide for build ideas and setup.

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

Open the guide for build ideas and setup.

Open guide

Docusaurus

Project66.4K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide

Prometheus

Project66.4K

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

Added 2026-10-07
Replaces
GitHub

Open the guide for build ideas and setup.

Open guide
Show more

Submit project