Self-hosted governance layer for MCP servers: policy engine, audit log, and multi-transport proxy between AI agents and the tools they call.
5 files for Claude Code, Codex and OpenCode: PreToolUse, PostToolUse, settings, sentinel-oss AGENTS.md and 1 more — 1,765 tokens loaded in every session.
AGENTS.md A 691 tok CLAUDE.md A 1,074 tok .claude/settings.json A — .claude/settings.json A — .claude/settings.json A — These files are gong8/sentinel-oss'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.