PreToolUse Bash Guards Match Prose, Not Just Commands

Problem

A PreToolUse hook on the Bash matcher receives the entire command string. That string routinely contains English: commit messages, gh issue create bodies, heredocs, comments.

A guard written as re.search(r"\bgh\s+issue\s+create\b", cmd) therefore fires on

git commit -F- <<'EOF'
Three issues were created with `gh issue create --body-file -`.
EOF

which invokes no such command. Worse, a guard that blocks a forbidden phrase will block the document that quotes the phrase to forbid it — so the fix for the anti-pattern cannot be committed.