claude-rules-source-guard

claude-rules-source-guard

Claude Code plugin: PreToolUse(Write|Edit|MultiEdit) hook that blocks direct edits under ~/.claude/rules/ and routes changes through the source-of-truth claude-rules repo.

Why

~/.claude/rules/ is configured as directory symlinks pointing at multiple claude-rules{,-emeradaco,-zunsystem,-syun} repos. Editing files via the symlink path looks fine at first glance, but actually rewrites repo content without going through the repo's commit/push flow. Easy to lose changes.

This hook blocks such edits at the tool layer (exit 2) and reports the resolved repo path so the model knows where to actually go.

Install

/plugin marketplace add kawaz/claude-rules-source-guard
/plugin install claude-rules-source-guard@claude-rules-source-guard

Behavior

• Triggers on Write / Edit / MultiEdit whose file_path is under $HOME/.claude/rules/. All three tools carry file_path at the top level of tool_input, so the same check covers them.
• Resolves the symlink target with readlink -f and includes it in the block message.
• Pass-through (exit 0) for all other paths and for relative paths.

Related

• kawaz/claude-rules — the SSoT repo this guard protects
• kawaz/claude-push-guard — sibling plugin (same pattern)