A coding agent that builds it's own tools and mines it's own skills and always ships with receipts.
Latest release v0.9.508 · 3 Nov 2026
5 files for Claude Code, Codex and OpenCode: PreToolUse, stella, stella AGENTS.md, stella CLAUDE.md and 1 more — 46,046 tokens loaded in every session.
AGENTS.md C 37,380 tok CLAUDE.md A 8,666 tok .claude/settings.json A — .claude/settings.json A — .claude/skills/oxagen-branding/SKILL.md A 133 tok These files are macanderson/stella's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.