Git-native memory for coding agents. Repo memory before the diff.
Latest release v0.5.1 · 27 Jul 2026
4 files for GitHub Copilot, Codex, OpenCode, Claude Code and Windsurf: mainline copilot-instructions.md, mainline AGENTS.md, mainline CLAUDE.md, windsurfrules — 1,789 tokens loaded in every session.
.github/copilot-instructions.md A 550 tok AGENTS.md A 281 tok CLAUDE.md A 479 tok .windsurfrules A 479 tok These files are mainline-org/mainline's own configuration — they tell GitHub Copilot, Codex, OpenCode, Claude Code and Windsurf 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.