fix(sdd): write artifacts to working-tree .superpowers/sdd, not .git/ (#1780)

skills/subagent-driven-development/SKILL.md

@@ -251,7 +251,7 @@ sequences — the single most expensive failure observed. Track progress in
 a ledger file, not only in todos.
 
 - At skill start, check for a ledger:
-  `cat "$(git rev-parse --git-path sdd)/progress.md"`. Tasks listed there
+  `cat "$(git rev-parse --show-toplevel)/.superpowers/sdd/progress.md"`. Tasks listed there
   as complete are DONE — do not re-dispatch them; resume at the first task
   not marked complete.
 - When a task's review comes back clean, append one line to the ledger in

skills/subagent-driven-development/scripts/review-package

@@ -5,9 +5,8 @@
 # tasks intact.
 #
 # Usage: review-package BASE HEAD [OUTFILE]
-# Default OUTFILE: <git-dir>/sdd/review-<base7>..<head7>.diff — unique per
-# repo instance and per range, so concurrent sessions cannot collide and a
-# re-review after fixes always gets a distinctly named fresh file.
+# Default OUTFILE: <repo-root>/.superpowers/sdd/review-<base7>..<head7>.diff
+# (named per range, so a re-review after fixes gets a distinct fresh file).
 set -euo pipefail
 
 if [ $# -lt 2 ] || [ $# -gt 3 ]; then
@@ -24,9 +23,7 @@ git rev-parse --verify --quiet "$head" >/dev/null || { echo "bad HEAD: $head" >&
 if [ $# -eq 3 ]; then
   out=$3
 else
-  dir=$(git rev-parse --git-path sdd)
-  mkdir -p "$dir"
-  dir=$(cd "$dir" && pwd)
+  dir=$("$(cd "$(dirname "$0")" && pwd)/sdd-workspace")
   out="$dir/review-$(git rev-parse --short "$base")..$(git rev-parse --short "$head").diff"
 fi
 

skills/subagent-driven-development/scripts/task-brief

@@ -4,8 +4,8 @@
 # through the controller's context.
 #
 # Usage: task-brief PLAN_FILE TASK_NUMBER [OUTFILE]
-# Default OUTFILE: <git-dir>/sdd/task-<N>-brief.md — unique per repo
-# instance, so concurrent sessions cannot collide.
+# Default OUTFILE: <repo-root>/.superpowers/sdd/task-<N>-brief.md
+# (per worktree; concurrent runs in the same working tree share it).
 set -euo pipefail
 
 if [ $# -lt 2 ] || [ $# -gt 3 ]; then
@@ -20,9 +20,7 @@ n=$2
 if [ $# -eq 3 ]; then
   out=$3
 else
-  dir=$(git rev-parse --git-path sdd)
-  mkdir -p "$dir"
-  dir=$(cd "$dir" && pwd)
+  dir=$("$(cd "$(dirname "$0")" && pwd)/sdd-workspace")
   out="$dir/task-${n}-brief.md"
 fi
 

tests/claude-code/test-sdd-workspace.sh

@@ -71,6 +71,42 @@ main() {
         echo "    staged: $staged"
     fi
 
+    cat > "$repo/plan.md" <<'PLAN'
+# Plan
+
+## Task 1: First thing
+
+Do the first thing.
+PLAN
+
+    local brief_out brief_path
+    brief_out="$(cd "$repo" && "$SDD_SCRIPTS/task-brief" plan.md 1)"
+    brief_path="$(printf '%s\n' "$brief_out" | sed -n 's/^wrote \(.*\): [0-9][0-9]* lines$/\1/p')"
+    case "$brief_path" in
+        "$repo/.superpowers/sdd/"*) pass "task-brief writes its brief under the workspace" ;;
+        *)
+            fail "task-brief writes its brief under the workspace"
+            echo "    got: $brief_path"
+            ;;
+    esac
+
+    local git_id=(-c user.email=t@example.com -c user.name=t -c commit.gpgsign=false)
+    ( cd "$repo" \
+        && git add plan.md \
+        && git "${git_id[@]}" commit -qm c1 \
+        && printf 'y\n' > f && git add f \
+        && git "${git_id[@]}" commit -qm c2 )
+    local rp_out rp_path
+    rp_out="$(cd "$repo" && "$SDD_SCRIPTS/review-package" HEAD~1 HEAD)"
+    rp_path="$(printf '%s\n' "$rp_out" | sed -n 's/^wrote \(.*\): [0-9].*$/\1/p')"
+    case "$rp_path" in
+        "$repo/.superpowers/sdd/"*) pass "review-package writes its diff under the workspace" ;;
+        *)
+            fail "review-package writes its diff under the workspace"
+            echo "    got: $rp_path"
+            ;;
+    esac
+
     echo ""
     if [[ "$FAILURES" -ne 0 ]]; then
         echo "FAILED: $FAILURES assertion(s)."