Keep the agents' worktrees out of the index

Keep the agents' worktrees out of the index

Claude Code puts each agent's Git worktree under `.claude/`, so the directory
holds fifteen checkouts of this repository rather than anything belonging to
it. Untracked, it showed up in every `git status` on this machine as one line
of noise sitting above the work someone was actually reading.

Nothing under it was ever tracked, so ignoring is the whole change.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016o8HwTaqLKEWCHTjsjFtrB

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016o8HwTaqLKEWCHTjsjFtrB

Deploy story

What this commit did to the running system — joined from the forge receipt chain, the part a commit page elsewhere cannot show.

Not deployed through the forge lane

No push, promotion, build, or deploy receipt references this commit (receipts are scanned over a bounded recent window). Changes shipped by full node replacement carry their proof in the release gate receipt instead.

Changed files

modified .gitignore

Diff

1 file changed, +4 -0

49	49
50	50		`# Local development forge storage (config/dev.exs points at it).`
51	51		`/.local/`
	52	+
	53	+	`# Agent scratch space: Claude Code keeps per-agent Git worktrees here, so the`
	54	+	`# directory is a set of checkouts of this repository rather than part of it.`
	55	+	`/.claude/`