Pre-call MCP tool policy gateway: allow / deny / redact / require_approval
2 files for Claude Code, Codex and OpenCode: pr-review, mcp-guardian AGENTS.md — 465 tokens loaded in every session.
AGENTS.md A 465 tok .claude/skills/pr-review/SKILL.md A 46 tok These files are Ailian0206/mcp-guardian'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.