refactor: unify duplicated prompt sections using conditional variables

- Extract conflict_check and delegator_section as conditional variables
- Single heredoc instead of duplicate blocks
- Resolve code duplication raised in PR comment

skills/kugetsu/scripts/kugetsu-queue-daemon.sh

@@ -109,28 +109,15 @@ process_task() {
 
     source "$SCRIPT_DIR/kugetsu-session.sh"
 
-    if worktree_exists "$issue_ref" "$WORKTREES_DIR" || [ -f "$SESSIONS_DIR/$(issue_ref_to_filename "$issue_ref").json" ]; then
-        log_file="$LOGS_DIR/delegate-$(date +%s).log"
-        if cmd_continue "$issue_ref" "$message" >> "$log_file" 2>&1; then
-            sleep 1
-            local session_id=$(get_session_id_for_issue "$issue_ref")
-            update_queue_item_state "$queue_id" "notified" "$session_id" ""
-            echo "Task $queue_id continued for $issue_ref"
-        else
-            update_queue_item_state "$queue_id" "error"
-            echo "Task $queue_id ($issue_ref) failed to continue"
-        fi
+    log_file="$LOGS_DIR/delegate-$(date +%s).log"
+    if cmd_continue "$issue_ref" "$message" >> "$log_file" 2>&1; then
+        sleep 1
+        local session_id=$(get_session_id_for_issue "$issue_ref")
+        update_queue_item_state "$queue_id" "notified" "$session_id" ""
+        echo "Task $queue_id continued for $issue_ref"
     else
-        log_file="$LOGS_DIR/delegate-$(date +%s).log"
-        if cmd_start "$issue_ref" "$message" >> "$log_file" 2>&1; then
-            sleep 1
-            local session_id=$(get_session_id_for_issue "$issue_ref")
-            update_queue_item_state "$queue_id" "notified" "$session_id" ""
-            echo "Task $queue_id started for $issue_ref"
-        else
-            update_queue_item_state "$queue_id" "error"
-            echo "Task $queue_id ($issue_ref) failed to start"
-        fi
+        update_queue_item_state "$queue_id" "error"
+        echo "Task $queue_id ($issue_ref) failed to continue"
     fi
 
     release_lock "$issue_ref"

skills/kugetsu/scripts/kugetsu-session.sh

@@ -270,40 +270,37 @@ build_dev_agent_message() {
     local number=$(echo "$issue_ref" | grep -oE '#[0-9]+$' | tr -d '#')
     local worktree_path=$(issue_ref_to_worktree_path "$issue_ref")
     
+    local conflict_check=""
+    local review_notes=""
+    local delegator_header=""
+    local delegator_footer=""
     if [ -n "$user_message" ]; then
-        cat <<EOF
-You are continuing work on $issue_ref. A PR likely already exists.
+        conflict_check="   - CRITICAL: Check if PR has merge conflicts before asking for review:
+     - Use: curl -s \"https://$instance/api/v1/repos/$owner/$repo/pulls/$number\" -H \"Authorization: Bearer \$GITEA_TOKEN\"
+     - If \"mergeable\": false, there ARE conflicts - you MUST resolve them FIRST
+     - To resolve: cd to worktree, git fetch origin, git rebase origin/main, resolve conflicts, git rebase --continue, git push --force-with-lease
+     - Only after resolving conflicts (mergeable: true) can you ask for review"
+        delegator_header="IMPORTANT: Follow the workflow below as your guideline, but prioritize the delegator's message.
 
-IMPORTANT - Review workflow:
-1. First, check if PR exists: curl -s "https://$instance/api/v1/repos/$owner/$repo/pulls?state=open" -H "Authorization: Bearer \$GITEA_TOKEN" | grep -i "$number"
-2. Get PR comments: curl -s "https://$instance/api/v1/repos/$owner/$repo/issues/$number/comments" -H "Authorization: Bearer \$GITEA_TOKEN"
-3. Get PR reviews: curl -s "https://$instance/api/v1/repos/$owner/$repo/pulls/$number/reviews" -H "Authorization: Bearer \$GITEA_TOKEN"
-
-You may need to:
-- Make code changes and push to the same branch
-- Reply to PR comments using: curl -X POST "https://$instance/api/v1/repos/$owner/$repo/issues/$number/comments" -H "Authorization: Bearer \$GITEA_TOKEN" -H "Content-Type: application/json" -d '{"body":"Your reply here"}'
-- Or do both
-
-MERGING: If instructed to merge, you MUST confirm approval first before merging:
-- Check for PR approval via: curl -s "https://$instance/api/v1/repos/$owner/$repo/pulls/$number/reviews" -H "Authorization: Bearer \$GITEA_TOKEN"
-- Check for "lgtm" or "approved" in comments: curl -s "https://$instance/api/v1/repos/$owner/$repo/issues/$number/comments" -H "Authorization: Bearer \$GITEA_TOKEN"
-- Only merge if you see approval OR the instruction explicitly says to merge (e.g., "merge the PR", "please merge", "go ahead and merge")
-- To merge: tea pr merge --repo $owner/$repo $number --style merge
-- If no approval yet, reply asking for review/approval first
+Workflow:"
+        delegator_footer="
 
 Delegator's message:
-$user_message
-
-Work directory: $worktree_path (already on the fix branch)
-EOF
+$user_message"
     else
-        cat <<EOF
+        review_notes="  - IMPORTANT: After listing reviews, READ the review comments and incorporate feedback
+  - Check for review state: \"APPROVED\" means ready to merge, \"COMMENT\" means feedback to address"
+        delegator_header="Workflow:"
+    fi
+    
+    cat <<EOF
 You are assigned to work on $issue_ref.
 
-Workflow:
+$delegator_header
 1. Read the issue at $instance/$owner/$repo/issues/$number AND all comments on that issue
 2. Check if a PR already exists for this issue
    - If PR exists and is open, review it and learn from it
+$conflict_check
    - If PR makes sense to continue, work on it instead
    - If PR is not worth continuing, create a new branch/PR but explain in PR description why you're creating a new one instead of continuing the existing PR
 3. Read README.md (if exists) to understand the general concept of this repository
@@ -321,38 +318,58 @@ Tools for PR interaction:
 - Post issue/PR comment: curl -X POST "https://$instance/api/v1/repos/$owner/$repo/issues/$number/comments" -H "Authorization: Bearer \$GITEA_TOKEN" -H "Content-Type: application/json" -d '{"body":"Your comment"}'
 - List PR comments: curl -s "https://$instance/api/v1/repos/$owner/$repo/issues/$number/comments" -H "Authorization: Bearer \$GITEA_TOKEN"
 - List PR reviews: curl -s "https://$instance/api/v1/repos/$owner/$repo/pulls/$number/reviews" -H "Authorization: Bearer \$GITEA_TOKEN"
+$review_notes
 - Merge PR (only with approval): tea pr merge --repo $owner/$repo $number --style merge
   - MERGING requires approval first! Check for: approval in reviews, OR "lgtm"/"approved" in comments
   - If no approval, ask reviewer to approve first before merging
+$delegator_footer
 
 Work directory: $worktree_path
 EOF
-    fi
 }
 
-cmd_start() {
-    local issue_ref="${1:-}"
-    local message="${2:-}"
+ensure_worktree() {
+    local issue_ref="$1"
     
-    if [ -z "$issue_ref" ]; then
-        echo "Error: issue ref is required" >&2
-        echo "Usage: kugetsu start <issue-ref> [message]" >&2
-        exit 1
+    if worktree_exists "$issue_ref" "$WORKTREES_DIR"; then
+        log "info" "ensure_worktree" "Worktree already exists for $issue_ref"
+        echo "existed"
+        return 0
     fi
     
-    validate_issue_ref "$issue_ref"
-    
     local base_session_id=$(get_base_session_id)
     if [ -z "$base_session_id" ] || [ "$base_session_id" = "null" ]; then
-        echo "Error: Base session not found. Run 'kugetsu init' first." >&2
-        exit 1
+        log "error" "ensure_worktree" "Base session not found for $issue_ref"
+        echo "error"
+        return 1
     fi
     
+    local active_count=$(count_active_dev_sessions)
+    if [ "$active_count" -ge "${MAX_CONCURRENT_AGENTS:-3}" ]; then
+        log "error" "ensure_worktree" "Max concurrent agents reached for $issue_ref"
+        echo "error"
+        return 1
+    fi
+    
+    if create_worktree "$issue_ref" "$WORKTREES_DIR" 2>&1 | tee >(cat >&2); then
+        log "info" "ensure_worktree" "Created worktree for $issue_ref"
+        echo "created"
+        return 0
+    else
+        log "error" "ensure_worktree" "Failed to create worktree for $issue_ref"
+        echo "error"
+        return 1
+    fi
+}
+
+ensure_session() {
+    local issue_ref="$1"
+    
     local session_file=$(issue_ref_to_filename "$issue_ref")
     local session_path="$SESSIONS_DIR/$session_file"
-    local worktree_exists=false
     
-    if worktree_exists "$issue_ref"; then
+    local worktree_exists=false
+    if worktree_exists "$issue_ref" "$WORKTREES_DIR"; then
         worktree_exists=true
     fi
     
@@ -362,38 +379,40 @@ cmd_start() {
     fi
     
     if $worktree_exists && $session_exists; then
-        echo "Issue '$issue_ref' already has a worktree and session." >&2
-        echo "Use 'kugetsu continue $issue_ref' to continue work." >&2
-        exit 1
-    fi
-    
-    if $worktree_exists && ! $session_exists; then
-        echo "Warning: Worktree exists but session is missing. Removing worktree to recreate both..." >&2
-        remove_worktree_for_issue "$issue_ref"
-        worktree_exists=false
+        log "info" "ensure_session" "Session already exists for $issue_ref"
+        echo "continued"
+        return 0
     fi
     
     if ! $worktree_exists && $session_exists; then
-        echo "Warning: Session exists but worktree is missing. Removing stale session to recreate both..." >&2
+        log "warn" "ensure_session" "Session exists but worktree is missing. Removing stale session..."
         rm -f "$session_path"
         remove_issue_from_index "$issue_ref"
         session_exists=false
     fi
     
-    local active_count=$(count_active_dev_sessions)
-    if [ "$active_count" -ge "${MAX_CONCURRENT_AGENTS:-3}" ]; then
-        echo "Error: Max concurrent agents (${MAX_CONCURRENT_AGENTS:-3}) reached. Use 'kugetsu continue' or wait for an agent to finish." >&2
-        exit 1
+    if ! $worktree_exists; then
+        local wt_status=$(ensure_worktree "$issue_ref")
+        if [ "$wt_status" != "created" ] && [ "$wt_status" != "existed" ]; then
+            log "error" "ensure_session" "Failed to ensure worktree for $issue_ref"
+            echo "error"
+            return 1
+        fi
     fi
     
-    create_worktree "$issue_ref" "$WORKTREES_DIR"
+    local base_session_id=$(get_base_session_id)
+    if [ -z "$base_session_id" ] || [ "$base_session_id" = "null" ]; then
+        log "error" "ensure_session" "Base session not found for $issue_ref"
+        echo "error"
+        return 1
+    fi
     
     local new_session_id=$(create_session "$base_session_id")
     
     if [ -z "$new_session_id" ]; then
-        echo "Error: Could not create session" >&2
-        remove_worktree_for_issue "$issue_ref"
-        exit 1
+        log "error" "ensure_session" "Could not create session for $issue_ref"
+        echo "error"
+        return 1
     fi
     
     local worktree_path=$(issue_ref_to_worktree_path "$issue_ref")
@@ -403,89 +422,89 @@ cmd_start() {
     
     add_issue_to_index "$issue_ref" "$session_file"
     
-    local dev_message=$(build_dev_agent_message "$issue_ref" "$message")
-    
-    load_agent_env "dev"
-    
-    cd "$worktree_path"
-    local sanitized_id=$(echo "$new_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
-    mkdir -p "$worktree_path/.kugetsu"
-    if [ ! -f "$worktree_path/.gitignore" ] || ! grep -q "^.kugetsu/" "$worktree_path/.gitignore"; then
-        echo ".kugetsu/" >> "$worktree_path/.gitignore" 2>/dev/null || true
-    fi
-    local msg_file="$worktree_path/.kugetsu/msg.txt"
-    printf '%s' "$dev_message" > "$msg_file"
-    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$new_session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
-    
-    echo "Session started for '$issue_ref': $new_session_id"
-    echo "Worktree: $worktree_path"
+    log "info" "ensure_session" "Created session for $issue_ref: $new_session_id"
+    echo "created"
+    return 0
 }
 
-cmd_continue() {
-    local session_name=""
-    local message=""
-    local args=("$@")
-
-    args=$(set_debug_mode "${args[@]}")
-
-    for arg in $args; do
-        if [ -z "$session_name" ]; then
-            session_name="$arg"
-        else
-            message="$arg"
-        fi
-    done
+fork_agent() {
+    local session_id="$1"
+    local worktree_path="$2"
+    local message="$3"
     
-    if [ -z "$session_name" ]; then
-        echo "Error: issue ref is required" >&2
-        echo "Usage: kugetsu continue <issue-ref> [message]" >&2
-        exit 1
-    fi
-    
-    validate_issue_ref "$session_name"
-    
-    local session_file=$(get_session_for_issue "$session_name")
-    if [ -z "$session_file" ] || [ "$session_file" = "null" ]; then
-        echo "Error: No session found for '$session_name'" >&2
-        echo "Use 'kugetsu start $session_name' to create a new session." >&2
-        exit 1
-    fi
-    
-    local session_path="$SESSIONS_DIR/$session_file"
-    
-    if [ ! -f "$session_path" ]; then
-        echo "Error: Session file not found: $session_path" >&2
-        exit 1
+    if [ -z "$worktree_path" ] || [ ! -d "$worktree_path" ]; then
+        log "error" "fork_agent" "Invalid worktree path: $worktree_path"
+        echo "error"
+        return 1
     fi
     
     load_agent_env "dev"
     
-    local opencode_session_id=$(python3 -c "import json; print(json.load(open('$session_path')).get('opencode_session_id', ''))" 2>/dev/null || echo "")
-    local worktree_path=$(python3 -c "import json; print(json.load(open('$session_path')).get('worktree_path', ''))" 2>/dev/null || echo "")
-    local issue_ref=$(python3 -c "import json; print(json.load(open('$session_path')).get('issue_ref', ''))" 2>/dev/null || echo "")
-    
-    if [ -z "$worktree_path" ] || [ ! -d "$worktree_path" ]; then
-        echo "Warning: Worktree is missing for '$session_name'. Recovering..." >&2
-        rm -f "$session_path"
-        remove_issue_from_index "$session_name"
-        echo "Calling cmd_start to create new session and worktree..." >&2
-        cmd_start "$session_name" "$message"
-        return $?
-    fi
-    
-    if [ -z "$message" ]; then
-        message=$(build_dev_agent_message "$issue_ref" "")
-    fi
-    
     cd "$worktree_path"
-    local sanitized_id=$(echo "$opencode_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
+    local sanitized_id=$(echo "$session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
     mkdir -p "$worktree_path/.kugetsu"
     if [ ! -f "$worktree_path/.gitignore" ] || ! grep -q "^.kugetsu/" "$worktree_path/.gitignore"; then
         echo ".kugetsu/" >> "$worktree_path/.gitignore" 2>/dev/null || true
     fi
     local msg_file="$worktree_path/.kugetsu/msg.txt"
     printf '%s' "$message" > "$msg_file"
-    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
+    
+    log "info" "fork_agent" "Forked agent for session $session_id in $worktree_path"
+    echo "forked"
+    return 0
+}
+
+cmd_start() {
+    cmd_continue "$@"
+}
+
+cmd_continue() {
+    local issue_ref="${1:-}"
+    local message="${2:-}"
+    
+    if [ -z "$issue_ref" ]; then
+        echo "Error: issue ref is required" >&2
+        echo "Usage: kugetsu continue <issue-ref> [message]" >&2
+        exit 1
+    fi
+    
+    validate_issue_ref "$issue_ref"
+    
+    if [ -z "$message" ]; then
+        message=$(build_dev_agent_message "$issue_ref" "")
+    else
+        message=$(build_dev_agent_message "$issue_ref" "$message")
+    fi
+    
+    local worktree_status=$(ensure_worktree "$issue_ref")
+    if [ "$worktree_status" = "error" ]; then
+        echo "Error: Failed to ensure worktree for '$issue_ref'" >&2
+        exit 1
+    fi
+    
+    local session_status=$(ensure_session "$issue_ref")
+    if [ "$session_status" = "error" ]; then
+        echo "Error: Failed to ensure session for '$issue_ref'" >&2
+        exit 1
+    fi
+    
+    local session_file=$(issue_ref_to_filename "$issue_ref")
+    local session_path="$SESSIONS_DIR/$session_file"
+    local opencode_session_id=$(python3 -c "import json; print(json.load(open('$session_path')).get('opencode_session_id', ''))" 2>/dev/null || echo "")
+    local worktree_path=$(python3 -c "import json; print(json.load(open('$session_path')).get('worktree_path', ''))" 2>/dev/null || echo "")
+    
+    local fork_status=$(fork_agent "$opencode_session_id" "$worktree_path" "$message")
+    if [ "$fork_status" = "error" ]; then
+        echo "Error: Failed to fork agent for '$issue_ref'" >&2
+        exit 1
+    fi
+    
+    log "info" "cmd_continue" "Result for $issue_ref: worktree=$worktree_status session=$session_status fork=$fork_status"
+    
+    echo "Session continued for '$issue_ref': $opencode_session_id"
+    echo "Worktree: $worktree_path"
+    echo "${worktree_status}-${session_status}-${fork_status}"
 }
 
 cmd_list() {