Sandbox
202 repos for engineering · TestingClear
SimpleEve/
development-skills

Reusable agent skills for end-to-end software delivery, from requirements and implementation to review, testing, and release.

34
GammaLabTechnologies/
harmonist

Portable AI agent orchestration with mechanical protocol enforcement. 186 agents, zero runtime dependencies.

2.3k
martinffx/
atelier

An atelier for your Agent: spec-driven workflows, deep thinking, and code quality.

46
JuliusBrussee/
caveman

🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman

105k
1 add
joe960913/
Jixu

Durable single-Agent Harness for TypeScript: recoverable Threads, context continuity, explicit side effects, and a native TUI.

100
smithersai/smithersFrameworks & SDKs

Smithers is an agentic workflow framework for defining workflows in simple TypeScript configuration files and executing them quickly, durably, and reliably

410
HenryZ838978/
deepseek-harness

Protocol-layer harness for DeepSeek: Python witness stack — posterior verification that keeps the protocol honest. dsh doctor --node probes included.

49
shamspias/
reins

A lightweight agent harness you bolt onto your app so an LLM can operate it — safely, and cheaply.

92
satelliteoflove/
godot-mcp

Give your AI assistant eyes and hands in the Godot editor: scene editing, input injection, deterministic playtesting, and live game state for agents

159
skillberry-ai/
cap-evolve

Optimize any AI agent’s skills, tools/MCP, and prompts against your own evals.

56
yvgude/
lean-ctx
yvgude/lean-ctxConnectors

LeanCTX — Context Intelligence for AI systems.

3.8k
matlab/
simulink-agentic-toolkit

The Simulink Agentic Toolkit gives your AI agent both the tools and the expertise to work effectively with Simulink and Model-Based Design.

1.1k
SponsioLabs/SponsioFrameworks & SDKs

Deterministic safety solutions for probabilistic AI agents

440
k-kolomeitsev/
data-structure-protocol

Graph-based long-term memory skill for AI (LLM) coding agents — faster context, fewer tokens, safer refactors

66

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

138k
1 add

Build, Evaluate, and Optimize AI Systems. Includes evals, RAG, agents, fine-tuning, synthetic data generation, dataset management, MCP, and more.

5.1k

Comprehensive sets of standards and practices designed to elevate the capabilities of AI coding agents.

156
EvoLinkAI/
awesome-claude-fable-5

Curated Claude Fable 5 use cases, tutorials, integrations, demos, and benchmark evidence with source links and multilingual README files.

49
matlab/
matlab-mcp-server

Run MATLAB® using AI applications with the official MATLAB MCP Server from MathWorks®. This MCP server for MATLAB supports a wide range of coding agents like Claude Code® and Visual Studio® Code.

1.5k
wshobson/
agents
wshobson/agentsCollections

Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, and Google Antigravity

40k