Portable engineering policies for coding agents — git, testing, logging, and language conventions written once and referenced everywhere
13 files for Claude Code, GitHub Copilot, Codex, OpenCode and Gemini CLI: SessionStart, PreToolUse, Stop, agentharness and 9 more — 30,908 tokens loaded in every session.
.github/copilot-instructions.md A 7,537 tok .github/instructions/go.instructions.md A 637 tok .github/instructions/python.instructions.md A 843 tok .github/instructions/rust.instructions.md A 909 tok .github/instructions/typescript.instructions.md A 1,014 tok AGENTS.md A 7,494 tok CLAUDE.md A 4,919 tok GEMINI.md A 7,555 tok .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — .gemini/settings.json A — These files are andr-ca/agentharness's own configuration — they tell Claude Code, GitHub Copilot, Codex, OpenCode and Gemini CLI 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.