deepseek-ai/deepseek-harness
DeepSeek Harness (dsh) is an open-source agent harness from DeepSeek AI built on an everything-is-a-plugin architecture over the Cordis framework, started from npm with a local web UI.
Awesome AI Agents › AI Developer Tools
coder/mux
Mux is a desktop and browser application from Coder for parallel agentic development, letting a developer plan and run tasks across several coding agents at once on local or remote compute. Each agent gets an isolated workspace, and the interface keeps a central view of how those workspaces have diverged in git. Three runtimes are offered: local, which runs directly in the project directory; worktree, which gives each task its own git worktree on the same machine; and SSH, which executes on a remote server. Model support spans several hosted families including Sonnet, Opus, GPT and Grok variants, with Ollama for locally served models and OpenRouter for the long tail of providers. A VS Code extension opens Mux workspaces from the editor. The application has its own agent loop, but much of the interaction model is inspired by Claude Code, so it offers familiar plan and execute modes, vim style input and a compact command, alongside additions such as opportunistic compaction and per-mode prompts. Supporting UI and keyboard shortcuts are aimed at managing a whole suite of agents rather than a single session, and agent output is rendered as rich markdown including mermaid diagrams and LaTeX. Screenshots in the README show integrated code review, a sidebar where agents report their status, the git divergence view for spotting conflicts, a costs tab tracking token consumption, and a context management dialog that groups compaction controls in one place. A server mode exposes a responsive interface usable from a phone. Pre-built binaries for macOS and Linux are published on the releases page, and the project is licensed under AGPL-3.0. It suits developers who want to supervise several long-running coding agents concurrently instead of working in one terminal session.
Also in AI Developer Tools
Hmbown/Codewhale
Open-source terminal coding agent written in Rust that edits files, runs commands and works toward a goal across many model providers.
TabbyML/tabby
Tabby is a self-hosted, open-source AI coding assistant providing a private and customizable alternative to GitHub Copilot with rich integration and deployment options.
cursor/cursor
Cursor is an AI-powered code editor designed to enhance programming productivity by integrating intelligent code suggestions and AI-driven features directly into the coding workflow.
oraios/serena
Serena is a free and open-source coding agent toolkit that enhances large language models with semantic code retrieval and editing capabilities, enabling autonomous coding workflows directly on your codebase.
QwenLM/qwen-code
Open-source terminal coding agent from the Qwen team with subagents, skills, hooks and MCP support, speaking the OpenAI, Anthropic, Gemini and Qwen API formats plus local model runtimes.
plandex-ai/plandex
Plandex is an open-source AI coding agent designed to plan, execute, and manage large-scale coding tasks and real-world projects with high efficiency and flexibility.
smol-ai/developer
Smol Developer is a library and toolset that embeds a junior developer AI agent into applications to scaffold and generate codebases interactively through human-in-the-loop prompt engineering.