worktrees

name	worktrees
description	Manage .worktrees/ lifecycle: create worktree, list worktrees, remove worktree, clean worktrees, stale worktrees audit, isolate work, project clone. TRIGGER when: any git worktree operation, branch isolation needed, stale worktrees review, project clone under .worktrees/project/, worktree cleanup.
allowed-tools	Bash

Worktrees

Manage .worktrees/. Full policy: context/rules/git.md § Worktrees.

DETECT BASE

Run first. Every create op needs $BASE.

BASE=$(git show-ref --verify --quiet refs/heads/development && echo development || \
       git show-ref --verify --quiet refs/heads/main && echo main || echo master)
echo $BASE

CREATE — new branch

PREFIX=feat   # feat bug task audit skill agent
ISSUE=42
DESC=short-desc
BRANCH="$PREFIX/$ISSUE-$DESC"
mkdir -p .worktrees
git worktree add -b "$BRANCH" ".worktrees/$BRANCH" "$BASE"

CREATE — existing branch

BRANCH=feat/42-short-desc
mkdir -p .worktrees
git worktree add ".worktrees/$BRANCH" "$BRANCH"

LIST — all worktrees + age + PR status

git worktree list --porcelain | awk '/^worktree /{wt=$2} /^branch /{
  sub("refs/heads/",""); br=$2; print wt, br}' | while read -r path branch; do
  age=$(( ( $(date +%s) - $(git -C "$path" log -1 --format=%ct 2>/dev/null || echo $(date +%s)) ) / 86400 ))
  pr=$(gh pr list --head "$branch" --state open --json number,title \
       --jq '.[0] | if . then "#\(.number) \(.title)" else "no PR" end' 2>/dev/null)
  printf "%-50s  %3dd  %s\n" "$branch" "$age" "$pr"
done

ISOLATE — in-flight work

Main checkout has loose files. Don't stash. Don't switch.

# 1. Cut worktree off base
BRANCH=feat/42-my-work
git worktree add -b "$BRANCH" ".worktrees/$BRANCH" "$BASE"

# 2. Copy files in
cp path/to/file1 path/to/file2 ".worktrees/$BRANCH/<destination>/"

# 3. Commit in worktree
cd ".worktrees/$BRANCH"
git add . && git commit -m "feat: ..."

Before cleaning main checkout — byte-check every file first:

for f in path/to/file1 path/to/file2; do
  a=$(md5sum "$f" | awk '{print $1}')
  b=$(git show "$BRANCH:$f" | md5sum | awk '{print $1}')
  [ "$a" = "$b" ] && echo "same:  $f" || echo "DRIFT: $f"
done

All same:? Then clean:

git restore path/to/file1 path/to/file2

Any DRIFT:? Stop. File not committed right. Fix first.

REMOVE — clean

BRANCH=feat/42-short-desc
git worktree remove ".worktrees/$BRANCH"
git worktree prune

Corrupted (not in git worktree list):

rm -rf ".worktrees/$BRANCH"
git worktree prune

STALE AUDIT — review only, no auto-delete

List worktrees older than 30 days with no open PR. Surface. Don't remove.

git worktree list --porcelain | awk '/^worktree /{wt=$2} /^branch /{
  sub("refs/heads/",""); br=$2; print wt, br}' | while read -r path branch; do
  age=$(( ( $(date +%s) - $(git -C "$path" log -1 --format=%ct 2>/dev/null || echo $(date +%s)) ) / 86400 ))
  [ "$age" -lt 30 ] && continue
  pr=$(gh pr list --head "$branch" --state open --json number \
       --jq 'length' 2>/dev/null)
  [ "$pr" = "0" ] && printf "STALE %3dd  %s\n" "$age" "$branch"
done

Review each STALE line. Remove manually if safe (see REMOVE above).

PROJECT CLONE

Independent repo — not a harness branch. Has its own .git.

# Clone
OWNER=ryaneggz
REPO=some-project
mkdir -p ".worktrees/project/$OWNER"
git clone "https://github.com/$OWNER/$REPO.git" ".worktrees/project/$OWNER/$REPO"

# Remove
rm -rf ".worktrees/project/$OWNER/$REPO"

No git worktree for these. Plain git clone / rm -rf.