If AI Is Doing the Investigation, Version the Investigation

I was looking at a bug report about calendar feed generation in Groups.io. ICS is one of those specs where interoperability with other calendar systems is a constant source of complexity - the spec is opaque and every client interprets it a little differently. I&rsquo;d fixed a similar bug a month earlier, so I went back to the commit. The diff was there, but the Claude Code session that had…