xadn

Force Claude Code to read before editing PRs

Claude Code likes to gh pr edit PRs without reading the current state first — overwriting descriptions, losing context, or making changes based on stale assumptions. This hook pair forces a "read before write" pattern: any gh pr edit is blocked unless gh pr view was called first for that PR in the same session.

How it works

Two hooks — a PostToolUse hook records when Claude views a PR, and a PreToolUse hook blocks edits unless a view was recorded. The view is consumed after each edit, so consecutive edits each require a fresh read.

gh pr view 123 ...   →  records "123" to a temp file

xadn

date = Date.new(2011, 6, 9)
date.stamp("March 1, 1999")         #=> "June  9, 2011"
date.stamp("Jan 1, 1999")           #=> "Jun  9, 2011"
date.stamp("Jan 01")                #=> "Jun 09"
date.stamp("Sunday, May 1, 2000")   #=> "Thursday, June  9, 2011"
date.stamp("Sun Aug 5")             #=> "Thu Jun  9"
date.stamp("12/31/99")              #=> "06/09/11"
date.stamp("DOB: 12/31/2000")       #=> "DOB: 06/09/2011"

xadn

# add leading zeros to a number

def zero_pad(target_length, input_string)
	pad_length = target_length - input_string.length
	"0" * pad_length + input
end


# convert a number to binary

xadn

# Remove comments, whitespace, newlines, and returns
# Use line.gsub! to modify the actual line instead of just returning the result

@input = line.gsub(/\t|\s|\n|\r|\/{2}.*$/, '')


# Then, once all of the crap is gone make sure to skip empty lines
	
if(!@input.empty?)