Not a new one but the pi coding agent blog has some interesting ideas.
• Minimal, terminal-based coding agent for power users
• Unified LLM API (OpenAI, Anthropic, etc.)
• Only essentials: read, write, edit, bash tools
• Fully transparent & customizable (markdown/JSON configs)
• No complex features—just simplicity and speed
• Benchmark-proven, open-source & extensible!
Check out the details: https://mariozechner.at/posts/2025-11-30-pi-coding-agent/