Fix zsh compatibility: Replace $(...) with backticks

ccpm/commands/pm/epic-merge.md

@@ -31,7 +31,7 @@ Navigate to worktree and check status:
 cd ../epic-$ARGUMENTS
 
 # Check for uncommitted changes
-if [[ $(git status --porcelain) ]]; then
+if [[ `git status --porcelain` ]]; then
   echo "⚠️ Uncommitted changes in worktree:"
   git status --short
   echo "Commit or stash changes before merging"
@@ -104,7 +104,7 @@ if [ -d ".claude/epics/$ARGUMENTS" ]; then
   cd .claude/epics/$ARGUMENTS
   for task_file in [0-9]*.md; do
     [ -f "$task_file" ] || continue
-    task_name=$(grep '^name:' "$task_file" | cut -d: -f2 | sed 's/^ *//')
+    task_name=`grep '^name:' "$task_file" | cut -d: -f2 | sed 's/^ *//'`
     feature_list="$feature_list\n- $task_name"
   done
   cd - > /dev/null
@@ -113,9 +113,9 @@ fi
 echo "$feature_list"
 
 # Extract epic issue number
-epic_github_line=$(grep 'github:' .claude/epics/$ARGUMENTS/epic.md 2>/dev/null || true)
+epic_github_line=`grep 'github:' .claude/epics/$ARGUMENTS/epic.md 2>/dev/null || true`
 if [ -n "$epic_github_line" ]; then
-  epic_issue=$(echo "$epic_github_line" | grep -oE '[0-9]+' || true)
+  epic_issue=`echo "$epic_github_line" | grep -oE '[0-9]+' || true`
   if [ -n "$epic_issue" ]; then
     echo "\nCloses epic #$epic_issue"
   fi
@@ -133,7 +133,7 @@ echo "
 ❌ Merge conflicts detected!
 
 Conflicts in:
-$(git diff --name-only --diff-filter=U)
+`git diff --name-only --diff-filter=U`
 
 Options:
 1. Resolve manually:
@@ -179,9 +179,9 @@ Close related issues:
 ```bash
 # Get issue numbers from epic
 # Extract epic issue number
-epic_github_line=$(grep 'github:' .claude/epics/archived/$ARGUMENTS/epic.md 2>/dev/null || true)
+epic_github_line=`grep 'github:' .claude/epics/archived/$ARGUMENTS/epic.md 2>/dev/null || true`
 if [ -n "$epic_github_line" ]; then
-  epic_issue=$(echo "$epic_github_line" | grep -oE '[0-9]+$' || true)
+  epic_issue=`echo "$epic_github_line" | grep -oE '[0-9]+$' || true`
 else
   epic_issue=""
 fi
@@ -193,9 +193,9 @@ gh issue close $epic_issue -c "Epic completed and merged to main"
 for task_file in .claude/epics/archived/$ARGUMENTS/[0-9]*.md; do
   [ -f "$task_file" ] || continue
   # Extract task issue number
-  task_github_line=$(grep 'github:' "$task_file" 2>/dev/null || true)
+  task_github_line=`grep 'github:' "$task_file" 2>/dev/null || true`
   if [ -n "$task_github_line" ]; then
-    issue_num=$(echo "$task_github_line" | grep -oE '[0-9]+$' || true)
+    issue_num=`echo "$task_github_line" | grep -oE '[0-9]+$' || true`
   else
     issue_num=""
   fi

ccpm/commands/pm/epic-refresh.md

@@ -44,13 +44,13 @@ if [ ! -z "$epic_issue" ]; then
   # For each task, check its status and update checkbox
   for task_file in .claude/epics/$ARGUMENTS/[0-9]*.md; do
     # Extract task issue number
-    task_github_line=$(grep 'github:' "$task_file" 2>/dev/null || true)
+    task_github_line=`grep 'github:' "$task_file" 2>/dev/null || true`
     if [ -n "$task_github_line" ]; then
-      task_issue=$(echo "$task_github_line" | grep -oE '[0-9]+$' || true)
+      task_issue=`echo "$task_github_line" | grep -oE '[0-9]+$' || true`
     else
       task_issue=""
     fi
-    task_status=$(grep 'status:' $task_file | cut -d: -f2 | tr -d ' ')
+    task_status=`grep 'status:' $task_file | cut -d: -f2 | tr -d ' '`
 
     if [ "$task_status" = "closed" ]; then
       # Mark as checked

ccpm/commands/pm/epic-start.md

@@ -41,7 +41,7 @@ Follow `/rules/branch-operations.md`:
 
 ```bash
 # Check for uncommitted changes
-if [ -n "$(git status --porcelain)" ]; then
+if [ -n "`git status --porcelain`" ]; then
   echo "❌ You have uncommitted changes. Please commit or stash them before starting an epic."
   exit 1
 fi

ccpm/commands/pm/epic-sync.md

@@ -31,7 +31,7 @@ Follow `/rules/github-operations.md` to ensure we're not syncing to the CCPM tem
 
 ```bash
 # Check if remote origin is the CCPM template repository
-remote_url=$(git remote get-url origin 2>/dev/null || echo "")
+remote_url=`git remote get-url origin 2>/dev/null || echo ""`
 if [[ "$remote_url" == *"automazeio/ccpm"* ]] || [[ "$remote_url" == *"automazeio/ccpm.git"* ]]; then
   echo "❌ ERROR: You're trying to sync with the CCPM template repository!"
   echo ""
@@ -58,8 +58,8 @@ fi
 #### First, detect the GitHub repository:
 ```bash
 # Get the current repository from git remote
-remote_url=$(git remote get-url origin 2>/dev/null || echo "")
-REPO=$(echo "$remote_url" | sed 's|.*github.com[:/]||' | sed 's|\.git$||')
+remote_url=`git remote get-url origin 2>/dev/null || echo ""`
+REPO=`echo "$remote_url" | sed 's|.*github.com[:/]||' | sed 's|\.git$||'`
 [ -z "$REPO" ] && REPO="user/repo"
 echo "Creating issues in repository: $REPO"
 ```
@@ -118,12 +118,12 @@ else
 fi
 
 # Create epic issue with labels
-epic_number=$(gh issue create \
+epic_number=`gh issue create \
   --repo "$REPO" \
   --title "Epic: $ARGUMENTS" \
   --body-file /tmp/epic-body.md \
   --label "epic,epic:$ARGUMENTS,$epic_type" \
-  --json number -q .number)
+  --json number -q .number`
 ```
 
 Store the returned issue number for epic frontmatter update.
@@ -142,7 +142,7 @@ fi
 
 Count task files to determine strategy:
 ```bash
-task_count=$(ls .claude/epics/$ARGUMENTS/[0-9][0-9][0-9].md 2>/dev/null | wc -l)
+task_count=`ls .claude/epics/$ARGUMENTS/[0-9][0-9][0-9].md 2>/dev/null | wc -l`
 ```
 
 ### For Small Batches (< 5 tasks): Sequential Creation
@@ -154,26 +154,26 @@ if [ "$task_count" -lt 5 ]; then
     [ -f "$task_file" ] || continue
 
     # Extract task name from frontmatter
-    task_name=$(grep '^name:' "$task_file" | sed 's/^name: *//')
+    task_name=`grep '^name:' "$task_file" | sed 's/^name: *//'`
 
     # Strip frontmatter from task content
     sed '1,/^---$/d; 1,/^---$/d' "$task_file" > /tmp/task-body.md
 
     # Create sub-issue with labels
     if [ "$use_subissues" = true ]; then
-      task_number=$(gh sub-issue create \
+      task_number=`gh sub-issue create \
         --parent "$epic_number" \
         --title "$task_name" \
         --body-file /tmp/task-body.md \
         --label "task,epic:$ARGUMENTS" \
-        --json number -q .number)
+        --json number -q .number`
     else
-      task_number=$(gh issue create \
+      task_number=`gh issue create \
         --repo "$REPO" \
         --title "$task_name" \
         --body-file /tmp/task-body.md \
         --label "task,epic:$ARGUMENTS" \
-        --json number -q .number)
+        --json number -q .number`
     fi
 
     # Record mapping for renaming
@@ -252,7 +252,7 @@ First, build a mapping of old numbers to new issue IDs:
 > /tmp/id-mapping.txt
 while IFS=: read -r task_file task_number; do
   # Extract old number from filename (e.g., 001 from 001.md)
-  old_num=$(basename "$task_file" .md)
+  old_num=`basename "$task_file" .md`
   echo "$old_num:$task_number" >> /tmp/id-mapping.txt
 done < /tmp/task-mapping.txt
 ```
@@ -261,15 +261,15 @@ Then rename files and update all references:
 ```bash
 # Process each task file
 while IFS=: read -r task_file task_number; do
-  new_name="$(dirname "$task_file")/${task_number}.md"
+  new_name="`dirname "$task_file"`/${task_number}.md"
 
   # Read the file content
-  content=$(cat "$task_file")
+  content=`cat "$task_file"`
 
   # Update depends_on and conflicts_with references
   while IFS=: read -r old_num new_num; do
     # Update arrays like [001, 002] to use new issue numbers
-    content=$(echo "$content" | sed "s/\b$old_num\b/$new_num/g")
+    content=`echo "$content" | sed "s/\b$old_num\b/$new_num/g"`
   done < /tmp/id-mapping.txt
 
   # Write updated content to new file
@@ -280,11 +280,11 @@ while IFS=: read -r task_file task_number; do
 
   # Update github field in frontmatter
   # Add the GitHub URL to the frontmatter
-  repo=$(gh repo view --json nameWithOwner -q .nameWithOwner)
+  repo=`gh repo view --json nameWithOwner -q .nameWithOwner`
   github_url="https://github.com/$repo/issues/$task_number"
 
   # Update frontmatter with GitHub URL and current timestamp
-  current_date=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+  current_date=`date -u +"%Y-%m-%dT%H:%M:%SZ"`
 
   # Use sed to update the github and updated fields
   sed -i.bak "/^github:/c\github: $github_url" "$new_name"
@@ -325,9 +325,9 @@ Update the epic file with GitHub URL, timestamp, and real task IDs:
 #### 5a. Update Frontmatter
 ```bash
 # Get repo info
-repo=$(gh repo view --json nameWithOwner -q .nameWithOwner)
+repo=`gh repo view --json nameWithOwner -q .nameWithOwner`
 epic_url="https://github.com/$repo/issues/$epic_number"
-current_date=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+current_date=`date -u +"%Y-%m-%dT%H:%M:%SZ"`
 
 # Update epic frontmatter
 sed -i.bak "/^github:/c\github: $epic_url" .claude/epics/$ARGUMENTS/epic.md
@@ -347,21 +347,21 @@ for task_file in .claude/epics/$ARGUMENTS/[0-9]*.md; do
   [ -f "$task_file" ] || continue
 
   # Get issue number (filename without .md)
-  issue_num=$(basename "$task_file" .md)
+  issue_num=`basename "$task_file" .md`
 
   # Get task name from frontmatter
-  task_name=$(grep '^name:' "$task_file" | sed 's/^name: *//')
+  task_name=`grep '^name:' "$task_file" | sed 's/^name: *//'`
 
   # Get parallel status
-  parallel=$(grep '^parallel:' "$task_file" | sed 's/^parallel: *//')
+  parallel=`grep '^parallel:' "$task_file" | sed 's/^parallel: *//'`
 
   # Add to tasks section
   echo "- [ ] #${issue_num} - ${task_name} (parallel: ${parallel})" >> /tmp/tasks-section.md
 done
 
 # Add summary statistics
-total_count=$(ls .claude/epics/$ARGUMENTS/[0-9]*.md 2>/dev/null | wc -l)
-parallel_count=$(grep -l '^parallel: true' .claude/epics/$ARGUMENTS/[0-9]*.md 2>/dev/null | wc -l)
+total_count=`ls .claude/epics/$ARGUMENTS/[0-9]*.md 2>/dev/null | wc -l`
+parallel_count=`grep -l '^parallel: true' .claude/epics/$ARGUMENTS/[0-9]*.md 2>/dev/null | wc -l`
 sequential_count=$((total_count - parallel_count))
 
 cat >> /tmp/tasks-section.md << EOF
@@ -408,15 +408,15 @@ EOF
 for task_file in .claude/epics/$ARGUMENTS/[0-9]*.md; do
   [ -f "$task_file" ] || continue
 
-  issue_num=$(basename "$task_file" .md)
-  task_name=$(grep '^name:' "$task_file" | sed 's/^name: *//')
+  issue_num=`basename "$task_file" .md`
+  task_name=`grep '^name:' "$task_file" | sed 's/^name: *//'`
 
   echo "- #${issue_num}: ${task_name} - https://github.com/${repo}/issues/${issue_num}" >> .claude/epics/$ARGUMENTS/github-mapping.md
 done
 
 # Add sync timestamp
 echo "" >> .claude/epics/$ARGUMENTS/github-mapping.md
-echo "Synced: $(date -u +"%Y-%m-%dT%H:%M:%SZ")" >> .claude/epics/$ARGUMENTS/github-mapping.md
+echo "Synced: `date -u +"%Y-%m-%dT%H:%M:%SZ"`" >> .claude/epics/$ARGUMENTS/github-mapping.md
 ```
 
 ### 7. Create Worktree

ccpm/commands/pm/issue-close.md

@@ -61,7 +61,7 @@ Check the task checkbox in the epic issue:
 epic_name={extract_from_path}
 
 # Get epic issue number from epic.md
-epic_issue=$(grep 'github:' .claude/epics/$epic_name/epic.md | grep -oE '[0-9]+$')
+epic_issue=`grep 'github:' .claude/epics/$epic_name/epic.md | grep -oE '[0-9]+$'`
 
 if [ ! -z "$epic_issue" ]; then
   # Get current epic body

ccpm/commands/pm/issue-sync.md

@@ -24,7 +24,7 @@ Do not bother the user with preflight checks progress ("I'm not going to ...").
 0. **Repository Protection Check:**
    Follow `/rules/github-operations.md` - check remote origin:
    ```bash
-   remote_url=$(git remote get-url origin 2>/dev/null || echo "")
+   remote_url=`git remote get-url origin 2>/dev/null || echo ""`
    if [[ "$remote_url" == *"automazeio/ccpm"* ]]; then
      echo "❌ ERROR: Cannot sync to CCPM template repository!"
      echo "Update your remote: git remote set-url origin https://github.com/YOUR_USERNAME/YOUR_REPO.git"

ccpm/commands/pm/test-reference-update.md

@@ -74,7 +74,7 @@ EOF
 # Create old -> new ID mapping
 > /tmp/id-mapping.txt
 while IFS=: read -r task_file task_number; do
-  old_num=$(basename "$task_file" .md)
+  old_num=`basename "$task_file" .md`
   echo "$old_num:$task_number" >> /tmp/id-mapping.txt
 done < /tmp/task-mapping.txt
 
@@ -90,11 +90,11 @@ while IFS=: read -r task_file task_number; do
   echo "Processing: $task_file -> $task_number.md"
 
   # Read the file content
-  content=$(cat "$task_file")
+  content=`cat "$task_file"`
 
   # Update references
   while IFS=: read -r old_num new_num; do
-    content=$(echo "$content" | sed "s/\b$old_num\b/$new_num/g")
+    content=`echo "$content" | sed "s/\b$old_num\b/$new_num/g"`
   done < /tmp/id-mapping.txt
 
   # Write to new file

ccpm/hooks/bash-worktree-fix.sh

@@ -22,7 +22,7 @@ shell_squote() {
 # Detect if CWD is inside a *linked worktree* and print the worktree root.
 # Returns 0 with path on stdout if yes; 1 otherwise.
 get_worktree_path() {
-    check_dir="$(pwd)"
+    check_dir="`pwd`"
 
     if [ ! -d "${check_dir}" ]; then
         debug_log "pwd is not a directory: ${check_dir}"
@@ -35,7 +35,7 @@ get_worktree_path() {
             if [ -r "${check_dir}/.git" ]; then
                 IFS= read -r gitdir_content < "${check_dir}/.git" || gitdir_content=""
                 # Strip a possible trailing CR (CRLF files)
-                gitdir_content=$(printf %s "$gitdir_content" | tr -d '\r')
+                gitdir_content=`printf %s "$gitdir_content" | tr -d '\r'`
             else
                 debug_log "Unreadable .git file at: ${check_dir}"
             fi
@@ -81,7 +81,7 @@ get_worktree_path() {
             return 1
         fi
 
-        check_dir=$(dirname "${check_dir}")
+        check_dir=`dirname "${check_dir}"`
     done
 
     debug_log "No git repository found"
@@ -141,7 +141,7 @@ inject_prefix() {
     worktree_path=$1
     command=$2
 
-    qpath=$(shell_squote "${worktree_path}")
+    qpath=`shell_squote "${worktree_path}"`
 
     # Right-trim spaces (portable loop)
     trimmed=${command}
@@ -170,7 +170,7 @@ main() {
     debug_log "Processing command: ${original_command}"
 
     # Fast path: if not in a worktree, pass through unchanged
-    if ! worktree_path="$(get_worktree_path)"; then
+    if ! worktree_path="`get_worktree_path`"; then
         debug_log "Not in worktree, passing through unchanged"
         printf '%s\n' "${original_command}"
         exit 0
@@ -180,7 +180,7 @@ main() {
         debug_log "Passing through unchanged"
         printf '%s\n' "${original_command}"
     else
-        modified_command="$(inject_prefix "${worktree_path}" "${original_command}")"
+        modified_command="`inject_prefix "${worktree_path}" "${original_command}"`"
         debug_log "Modified command: ${modified_command}"
         printf '%s\n' "${modified_command}"
     fi

ccpm/rules/agent-coordination.md

@@ -34,7 +34,7 @@ Before modifying a shared file:
 git status {file}
 
 # If modified by another agent, wait
-if [[ $(git status --porcelain {file}) ]]; then
+if [[ `git status --porcelain {file}` ]]; then
   echo "Waiting for {file} to be available..."
   sleep 30
   # Retry

ccpm/rules/datetime.md

@@ -60,7 +60,7 @@ updated: 2024-01-15T14:30:45Z  # Use actual output from date command
 **Creating a new PRD:**
 ```bash
 # First, get current datetime
-CURRENT_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+CURRENT_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"`
 # Output: 2024-01-15T14:30:45Z
 
 # Then use in frontmatter:
@@ -75,7 +75,7 @@ created: 2024-01-15T14:30:45Z  # Use the actual $CURRENT_DATE value
 **Updating an existing task:**
 ```bash
 # Get current datetime for update
-UPDATE_DATE=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
+UPDATE_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"`
 
 # Update only the 'updated' field:
 ---