Declare an agent guardrail once, in one neutral format, and enforce it through every harness's native hooks.
Latest release v0.6.0 · 18 Oct 2026
2 files for Claude Code: handrail CLAUDE.md, handrail — 616 tokens loaded in every session.
CLAUDE.md A 616 tok .claude/settings.json A — These files are svyatov/handrail's own configuration — they tell Claude Code 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.