Claude Code

ECC

JavaScript

100

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

hermes-agent

Python

90

The agent that grows with you

cc-switch

Rust

95

A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io

ponytail

JavaScript

100

Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

codebase-memory-mcp

C

95

High-performance code intelligence MCP server. Indexes codebases into a persistent knowledge graph — average repo in milliseconds. 158 languages, sub-ms queries, 99% fewer tokens. Single static binary, zero dependencies.

herdr

Rust

100

the runtime your coding agents live on

img2threejs

Python

95

Rebuild the object in a reference image as a code-only, procedural, quality-gated, animation-ready Three.js model. Token-efficient image-to-3D.

ego-lite

JavaScript

95

The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, without disturbing you. Zero cost, zero config.

loop-engineering

TypeScript

100

Practical patterns, starters & CLI tools for loop engineering with AI coding agents. Design systems that prompt and orchestrate agents (inspired by Addy Osmani and Boris Cherny). Includes loop-audit, loop-init, loop-cost.

omnigent

Python

85

Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.

devspace

TypeScript

85

Minimal Coding Agent Harness over MCP for ChatGPT, Claude, Hermes, Grok Bot, OpenClaw

mirage

TypeScript

90

The World's First Unified Virtual Filesystem For AI Agents

unlazy

JavaScript

95

Anti-laziness skill for AI agents. Core: the Depth Tree method, which splits a task N layers deep and gives every leaf the full time budget of the whole task, so effort multiplies with depth. Grounded in 2025-2026 research on model laziness, underthinking and premature completion.

agent-rules-books

72

AGENTS.md rules / skills for AI coding agents: Codex, Cursor & Claude Code. Inspired by Clean Code, Refactoring, DDD, Clean Architecture and DDIA programming books.

portaljs

TypeScript

90

🌀 AI-native framework for building data portals. Scaffold a full portal from a brief and load datasets in minutes with agentic skills — any backend (CKAN, GitHub, Frictionless).

AgentsMesh

Go

95

The AI Agent Workforce Platform. Run a hundred AI coding agents across your own machines — schedule, isolate, and steer them all from one console.

better-harness

JavaScript

95

An open-source Harness Engineering platform for coding agents—define harnesses as code, run controlled experiments, inspect evidence, and compare outcomes.

delegate-skills

JavaScript

95

Delegate a coding task to a separate coding agent CLI, review the diff, land the commit yourself — one per implementer.

OpenChatCut

TypeScript

90

Open-source, local-first conversational AI video editor with a professional multi-track timeline, Agent Skills, MCP integration, and Remotion rendering.

scroll-craft

JavaScript

85

Claude Code skill for premium scroll-driven websites. Scroll becomes the timeline, on a real design floor, verified by screenshotting its own scroll.

guard-skills

80

Guard skills for coding agents, quality gates that catch AI-generated failure modes in code, tests, and docs

skills

Python

75

Codebase harness + loop engineer

clawk

Go

77

Give coding agents a disposable Linux VM, not your laptop

autoprompt-skill

JavaScript

72

Autoprompt is a coding-agent skill that cuts failures by 45% on agentic coding tasks.

fablize

Python

75

A Claude Code plugin that makes Opus behave like Fable — completion, evidence, and verification enforced as procedure. Ships only what a Fable-vs-Opus comparison proved transferable.

awesome-gamedev-agent-skills

Python

82

67 game-dev skills for AI coding agents — Godot, Unity, Unreal, Phaser, PixiJS, three.js, Bevy, pygame, LÖVE, Roblox. Portable SKILL.md Agent Skills (the format Anthropic launched as Claude Skills), with a router that loads the right skill for your engine and task. Runs in Claude Code, Cursor, Kiro, Codex, Copilot, Gemini CLI and more.

deja-vu

Go

82

Search your past AI coding sessions — Claude Code, Codex, Cursor and 17 more. Indexes the session history they already wrote to disk, including months from before you installed it, and recalls it in any of them. No LLM, no embeddings, one local Go binary.

looper

Python

77

Design visual, review-gated agent loops for Claude Code before you run them.

kandev

Go

77

AI Kanban & Development Environment. Orchestrate multiple agents, review changes, open PRs. Multi-provider, self-hostable, no telemetry.

barehands

HTML

80

Move things on your screen with your bare hands. A webcam-powered, hand-tracked interface for your AI. No headset. No controllers.

agentacct

Python

77

See what your coding agents did and what it cost. Breaks each task down into work steps — tools used, files changed, tests run, time and tokens spent. Local-first dashboard for Claude Code, Codex, OpenCode, and more. No login, no telemetry.

zoetrope

Rust

77

Watch a Claude Code session as a live flow graph, in your terminal or your browser.

chorus

TypeScript

82

Multi-LLM peer review for code decisions. Bring your own CLI; Chorus convenes 2-4 other LLMs to review the work before you ship.

doop

TypeScript

77

The open-source alternative to Paper.design. A multiplayer design canvas where humans and AI agents design together, live. MCP built in.

best-claude-hud

Rust

77

Minimal Claude Code statusline HUD powered by Rust.

agenttrail

HTML

72

Local observability map for AI coding agents. Watch Claude Code, Codex, and Cursor plans, tool calls, file changes, and progress in real time.

paxm

Go

77

Persistent, provider-neutral memory for Codex, Claude Code, OpenCode, Pi, and MCP coding agents.

nanocodex

Rust

77

Building blocks for frontier OpenAI agents in Rust. Nanocodex empowers you with Codex-level performance anywhere.

marketing-os

77

An entire marketing department as one Claude skill. 14 modules: audits scored 0-100, an 18-tactic hook engine, copy graded before you see it, ad diagnosis, GEO, email, launches, pricing. Works in Claude, Codex and Cursor.

rome

TypeScript

77

Rome is the agentic OS.

codex-island

Swift

82

CodexIsland - AI usage limits in your MacBook notch

open-edit

TypeScript

82

Open-source, agent-driven editing pipeline: create subtitles, motion graphics, slides, edit and render videos.

diri

Rust

82

Native macOS orchestrator for coding agents — run Claude Code, Codex, Cursor, Gemini and shells in parallel across git worktrees and remote hosts

nopus

TypeScript

72

Deterministic prose checks for clearer coding-agent responses

humanizer-stack

Python

72

Two-pass pipeline for removing AI writing tells from outward-facing text: a surface pass plus a structural pass grounded in the StoryScope study. Packaged as Claude Code Skills. Free community: skool.com/jens-ai-community-1306

lazyskills

Go

72

mission control for agent skills

marketing-studio

JavaScript

72

Agent-driven marketing studio for Claude Code: one /marketing command renders your product's full launch asset suite (logo reveal, demo, launch video, social clips, OG assets)

claude-db

TypeScript

72

Persistent memory for Claude Code. Bring your own database.