Delta Agent is a terminal coding agent in one 636 KB C11 binary, with no Node, Python or npm
Shared on HN Oct 31, the zero-dependency agent reads and edits files, runs shell and git with checkpoints and undo, speaks MCP, loads SKILL.md skills and works with any model in the models.dev catalog, using about 1.7 MB of memory on Windows. Only Windows is fully tested (Linux builds and runs, macOS is source-only), and its source-available license bans commercial use and public forks.