Open Source Plugins
Plugins are optional components that add capabilities to an existing application without requiring users to replace or rebuild its core. They can connect software to external services, automate repetitive tasks, customize interfaces, or support new file formats and workflows. By separating extensions from the main application, plugin systems let users tailor tools to specific needs while giving developers a way to contribute features independently.
Open source plugins range from themes and command-line enhancements to integrations, developer tools, and extensions for AI assistants. When choosing one, check compatibility with your application and its versions, the license, documentation, permissions, and how actively it is maintained. Consider dependencies, security implications, and whether the extension can be configured or removed easily. Plugins are useful for people who want to adapt existing software, as well as developers building or maintaining extensible applications.
27 repositories · updated October 3, 2026

Lenso: Build Products with Replaceable Plugins and Typed Capabilities
Lenso is a local-first, language-independent runtime designed for building applications with replaceable plugins. It enables defining product roles as typed Capabilities, implemented by Plugins, ensuring explicit relationships and verifiable composition. This system allows for behavior to be added, replaced, and removed without hidden framework magic, making it ideal for long-lived products with evolving boundaries.

agent-plugins: A Marketplace for AI Coding Assistant Skills
agent-plugins is a tool-neutral marketplace offering ready-to-install bundles that enhance AI coding assistants. It provides curated skills, tool connections, and specialist roles for developers using VS Code, GitHub Copilot CLI, or Claude Code. This repository simplifies the process of integrating advanced AI capabilities into your development workflow.

ClawHub: The Public Skill and Plugin Registry for OpenClaw
ClawHub is the public skill and plugin registry for OpenClaw, designed for publishing, versioning, and searching text-based agent skills and code plugins. It offers fast browsing, a CLI-friendly API, moderation hooks, and vector search capabilities. This platform streamlines the discovery and management of resources for the OpenClaw ecosystem.

dify-official-plugins: Extending Dify with AI Models, Tools, and Agent Strategies
The `dify-official-plugins` repository hosts a collection of official plugins for Dify, an open-source platform for developing LLM-powered AI applications. These plugins, including models, tools, agent strategies, and extensions, enhance Dify's capabilities and are maintained by the official Dify team. They are designed to help developers efficiently build, deploy, and manage AI-driven solutions.

webhookx: Receive and Deliver Webhook Events
WebhookX is a Go-based gateway for receiving, validating, transforming, and reliably delivering events to one or more endpoints. It suits teams that need centralized webhook routing, delivery retries, and operational visibility.

DocumentServer: Host Collaborative Online Office Editors
ONLYOFFICE Docs provides self-hosted editors and viewers for documents, spreadsheets, presentations, forms, and PDFs. It suits teams and product integrators that need real-time editing embedded in a collaboration platform or application.

Compound Engineering Plugin: AI Skills for Smarter, More Efficient Development
The Compound Engineering plugin introduces a revolutionary approach to software development, leveraging AI agents to make each unit of engineering work easier than the last. It focuses on thorough planning, insightful reviews, and codifying knowledge to prevent technical debt. This plugin integrates with popular AI coding environments like Claude Code, Cursor, and Copilot, transforming traditional development into a compounding process of continuous improvement.

claude-plugins-official: The Official Directory for Claude Code Plugins
claude-plugins-official is Anthropic's official repository for high-quality Claude Code Plugins. It provides a curated directory of both internal and third-party plugins, enabling users to extend Claude's capabilities. This repository serves as the central hub for discovering and installing powerful tools for Claude Code.

codex-plugin-cc: Use Codex from Claude Code
A Claude Code plugin that connects your existing local Codex CLI for code reviews and delegated tasks. It suits developers who want Codex in their current workflow, with background job controls and session handoff.

skills: Add .NET Skills to AI Coding Agents
A curated collection of portable skills and host-specific agents for .NET and C# coding agents. It helps agents handle development, testing, upgrades, diagnostics, and other specialized .NET tasks.

claude-for-legal: Legal Workflow Plugins and Agents
Anthropic’s claude-for-legal provides Claude plugins, skills, and managed-agent cookbooks for legal teams, clinics, and students. It supports workflows from contract review and privacy assessments to litigation and study, with attorney review required for legal outputs.

digler: Analyze Disks and Recover Deleted Files
Digler is a Go tool for forensic disk analysis and file recovery from disk images or raw devices. It offers CLI and desktop workflows for scanning, carving files, reviewing DFXML reports, and recovering selected data.