Turn a script Claude wrote during a skill run into a permanent tool of that skill. Finds the skill last invoked in the session and the script written or run after it (from the session transcript, so a summarized conversation cannot hide it), makes it reusable (arguments instead of hard-coded session values, no secrets, clear exit codes), saves it in the skill's scripts folder, runs it once, and rewrites the skill's SKILL.md so future runs execute the file instead of writing it again. Use when the user says 'save the script you just created into the skill', 'add this script as a tool to the skill', 'make the skill use this script next time', 'stop rewriting this script', '…
