Merge pull request '[FIX] process_queue: add missing closing parentheses' (#143) from fix/issue-142-process-queue-missing-parens into main

Fixes #142 - process_queue silently skips all queue items because
issue_ref and message Python extraction commands were missing a closing
parenthesis. The error was silently swallowed by 2>/dev/null causing
both variables to be empty, so every queue item was skipped.

skills/kugetsu/SKILL.md

@@ -49,6 +49,9 @@ A default config file is created during `kugetsu init` with commented examples:
 | `MAX_CONCURRENT_AGENTS` | 3 | Maximum number of concurrent dev agents |
 | `KUGETSU_TEMP_DIR` | `~/.local/share/opencode/tool-output` | Temp directory for subagent tool output (useful in headless environments where /tmp is restricted) |
 | `KUGETSU_VERBOSITY` | `default` | PM agent verbosity level: `verbose`, `default`, or `quiet` |
+| `QUEUE_DAEMON_INTERVAL_MINUTES` | 5 | How often daemon polls queue (in minutes) |
+| `QUEUE_DAEMON_BATCH_SIZE` | 2 | How many tasks daemon picks per poll |
+| `QUEUE_CLEANUP_AGE_DAYS` | 7 | Auto-cleanup completed/error items older than N days |
 
 ### Environment Variables for Agents
 
@@ -111,6 +114,10 @@ Each issue session gets its own git worktree to prevent conflicts:
 ├── worktrees/
 │   ├── github.com-shoko-kugetsu-14/     # Isolated workdir for issue #14
 │   └── github.com-shoko-kugetsu-15/     # Isolated workdir for issue #15
+├── queue/
+│   ├── items/                      # Queue item JSON files
+│   ├── daemon.pid                   # Daemon process ID
+│   └── daemon.log                  # Daemon log output
 └── index.json                       # Maps session IDs and issue refs to session files
 ```
 
@@ -258,16 +265,17 @@ kugetsu destroy --base -y
 
 ### kugetsu delegate `<message>`
 
-Send a message to the PM agent for task coordination (fire-and-forget):
+Send a message to the PM agent for task coordination via queue:
 ```bash
 kugetsu delegate "work on issue #14"
 kugetsu delegate "review PR #92"
 ```
 
-- Non-blocking: returns immediately, runs in background
+- **Always enqueues** (fire-and-forget): returns immediately
-- PM agent processes the message asynchronously
+- Queue daemon polls queue and invokes PM when slots available
-- Uses `KUGETSU_VERBOSITY` env var to control PM agent output verbosity
+- Tasks are processed FIFO (first-in-first-out)
-- Log output stored in `~/.kugetsu/logs/delegate-<timestamp>.log`
+- Use `kugetsu queue list` to see pending tasks
+- Use `kugetsu queue-daemon logs` to debug queue processing
 
 ### kugetsu logs [n]
 
@@ -328,35 +336,79 @@ kugetsu server default github   # Set default server
 kugetsu server get github       # Get server URL
 ```
 
-### kugetsu queue <list|enqueue|dequeue|clear>
+### kugetsu queue <list|stats|clear>
 
 Manage task queue for autonomous PM operation:
 ```bash
-kugetsu queue list              # Show queued tasks
+kugetsu queue list              # Show queued tasks with status
-kugetsu queue enqueue "task"   # Add task to queue
+kugetsu queue stats            # Show queue statistics (total, pending, notified, completed, error)
-kugetsu queue dequeue          # Remove next task from queue
+kugetsu queue clear            # Clean up old completed/error items
-kugetsu queue clear            # Clear all queued tasks
+kugetsu queue enqueue <issue-ref> <message>  # Manually enqueue a task
 ```
 
-- Queue stored in `~/.kugetsu/queue.json`
+**Queue Item States:**
+- `pending` - Waiting in queue, daemon can pick up
+- `notified` - PM agent has picked up the task
+- `completed` - Dev agent finished, PR created
+- `error` - Timeout or failure
+
+### kugetsu queue-daemon <start|stop|restart|status|logs>
+
+Manage the queue daemon background process:
+```bash
+kugetsu queue-daemon start     # Start daemon in background
+kugetsu queue-daemon stop      # Stop daemon
+kugetsu queue-daemon restart    # Restart daemon
+kugetsu queue-daemon status    # Check if daemon is running
+kugetsu queue-daemon logs       # Show recent daemon logs
+```
+
+**Daemon Behavior:**
+1. Runs at configurable interval (default: 5 minutes)
+2. Checks if active agents < MAX_CONCURRENT_AGENTS
+3. Picks 1-N pending items (configurable batch size)
+4. Forks PM session for each picked item
+5. PM decides whether to use `start` or `continue`
+
+**Queue Directory:**
+```
+~/.kugetsu/queue/
+├── items/                     # Queue item JSON files
+│   ├── q_1234567890.json    # One file per queued task
+│   └── q_1234567891.json
+├── daemon.pid                # Daemon process ID
+├── daemon.lock               # Daemon lock file
+└── daemon.log                # Daemon log output
+```
 
 ## Workflow Example
 
+### First-time Setup
 ```bash
-# First-time setup (requires TTY)
+# Initialize kugetsu (requires TTY)
 kugetsu init
-# Creates: base session + pm-agent session
 
-# Start work on issue
+# Start the queue daemon (for autonomous operation)
-kugetsu start github.com/shoko/kugetsu#14 "implement feature X"
+kugetsu queue-daemon start
-# Creates: worktree at ~/.kugetsu/worktrees/github.com-shoko-kugetsu-14/
+```
 
-# Continue later
+### Normal Workflow
+```bash
+# Enqueue tasks via delegate - agents will process them automatically
+kugetsu delegate "work on issue #14"
+kugetsu delegate "review PR #92"
+
+# Check queue status
+kugetsu queue list           # See pending tasks
+kugetsu queue stats         # See statistics
+
+# Debug queue daemon
+kugetsu queue-daemon status  # Is daemon running?
+kugetsu queue-daemon logs    # See daemon logs
+
+# Continue work on existing issue
 kugetsu continue github.com/shoko/kugetsu#14 "add tests"
 
-# Continue again
-kugetsu continue github.com/shoko/kugetsu#14 "fix failing test"
-
 # List all sessions
 kugetsu list
 
@@ -367,6 +419,21 @@ kugetsu prune --force
 kugetsu destroy github.com/shoko/kugetsu#14
 ```
 
+### Queue Daemon Management
+```bash
+# Check if daemon is running
+kugetsu queue-daemon status
+
+# View daemon logs for debugging
+kugetsu queue-daemon logs
+
+# Restart daemon if needed
+kugetsu queue-daemon restart
+
+# Stop daemon
+kugetsu queue-daemon stop
+```
+
 ## Headless Operation
 
 This design solves the headless CLI limitation discovered in Issue #14:

skills/kugetsu/scripts/kugetsu

@@ -13,6 +13,19 @@ VERBOSITY_DIR="$KUGETSU_DIR/verbosity"
 
 MAX_CONCURRENT_AGENTS="${MAX_CONCURRENT_AGENTS:-3}"
 KUGETSU_VERBOSITY="${KUGETSU_VERBOSITY:-default}"
+CONTEXT_DIR="${CONTEXT_DIR:-$KUGETSU_DIR/context}"
+ENABLE_CONTEXT_DUMP="${ENABLE_CONTEXT_DUMP:-true}"
+WORKTREE_CHECK_PR_STATUS="${WORKTREE_CHECK_PR_STATUS:-true}"
+
+QUEUE_DIR="${QUEUE_DIR:-$KUGETSU_DIR/queue}"
+QUEUE_ITEMS_DIR="${QUEUE_ITEMS_DIR:-$QUEUE_DIR/items}"
+QUEUE_DAEMON_PID_FILE="${QUEUE_DAEMON_PID_FILE:-$QUEUE_DIR/daemon.pid}"
+QUEUE_DAEMON_LOCK_FILE="${QUEUE_DAEMON_LOCK_FILE:-$QUEUE_DIR/daemon.lock}"
+QUEUE_DAEMON_LOG_FILE="${QUEUE_DAEMON_LOG_FILE:-$QUEUE_DIR/daemon.log}"
+QUEUE_DAEMON_INTERVAL_MINUTES="${QUEUE_DAEMON_INTERVAL_MINUTES:-5}"
+QUEUE_DAEMON_BATCH_SIZE="${QUEUE_DAEMON_BATCH_SIZE:-2}"
+QUEUE_CLEANUP_AGE_DAYS="${QUEUE_CLEANUP_AGE_DAYS:-7}"
+TASK_TIMEOUT_HOURS="${TASK_TIMEOUT_HOURS:-1}"
 
 # Load user config overrides (~/.kugetsu/config)
 if [ -f "$KUGETSU_DIR/config" ]; then
@@ -77,6 +90,11 @@ Usage:
     kugetsu destroy <issue-ref> [-y]                  Delete session for issue
     kugetsu destroy --pm-agent [-y]                   Delete pm-agent session (not recommended)
     kugetsu destroy --base [-y]                      Delete base session
+    kugetsu set-pr <issue-ref> <pr-url>            Set PR URL for session (for PR tracking)
+    kugetsu context <issue-ref>                        Show context for issue
+    kugetsu queue [list|stats|clear]                  Show queue status or statistics
+    kugetsu queue enqueue <issue-ref> <message>       Enqueue a task (normally via delegate)
+    kugetsu queue-daemon [start|stop|restart|status|logs]  Manage queue daemon
     kugetsu help                                     Show this help
 
 Issue Ref Format:
@@ -256,6 +274,54 @@ get_worktree_path_for_session() {
     fi
 }
 
+check_pr_status() {
+    local pr_url="$1"
+    
+    if [ -z "$pr_url" ]; then
+        echo "no_pr_url"
+        return 1
+    fi
+    
+    local hostname=$(echo "$pr_url" | sed -E 's|https://([^/]+)/.*|\1|')
+    
+    local server_base="${GIT_SERVERS[$hostname]:-}"
+    if [ -z "$server_base" ]; then
+        echo "unknown_server"
+        return 1
+    fi
+    
+    local api_base="${server_base}/api/v1"
+    
+    local api_url=$(echo "$pr_url" | sed -E 's|https://[^/]+/([^/]+)/([^/]+)/(pulls|merge_requests)/([0-9]+)|'"${api_base}"'/repos/\1/\2/\3/\4|')
+    
+    local token=""
+    if [[ "$hostname" == "github.com" ]]; then
+        token="${GITHUB_TOKEN:-}"
+    else
+        token="${GITEA_TOKEN:-}"
+    fi
+    
+    local response
+    if [ -n "$token" ]; then
+        response=$(curl -s -H "Authorization: token $token" "$api_url" 2>/dev/null || echo "{}")
+    else
+        response=$(curl -s "$api_url" 2>/dev/null || echo "{}")
+    fi
+    
+    local state=$(echo "$response" | python3 -c "import json, sys; d=json.load(sys.stdin); print(d.get('state', 'unknown'))" 2>/dev/null || echo "unknown")
+    local merged=$(echo "$response" | python3 -c "import json, sys; d=json.load(sys.stdin); print('true' if d.get('merged', False) else 'false')" 2>/dev/null || echo "false")
+    
+    if [ "$merged" = "true" ]; then
+        echo "merged"
+    elif [ "$state" = "closed" ]; then
+        echo "closed"
+    elif [ "$state" = "open" ]; then
+        echo "open"
+    else
+        echo "unknown"
+    fi
+}
+
 issue_ref_to_filename() {
     local issue_ref="$1"
     echo "$issue_ref" | sed 's/[\/:]/-/g' | sed 's/#/-/'
@@ -267,6 +333,424 @@ filename_to_issue_ref() {
     echo "$name" | sed 's/-\([0-9]*\)$/#\1' | sed 's/-/\//g'
 }
 
+issue_ref_to_context_file() {
+    local issue_ref="$1"
+    local context_filename=$(issue_ref_to_filename "$issue_ref")
+    echo "$CONTEXT_DIR/${context_filename}.json"
+}
+
+kugetsu_context_load() {
+    local issue_ref="$1"
+    
+    if [ "$ENABLE_CONTEXT_DUMP" != "true" ]; then
+        echo ""
+        return
+    fi
+    
+    local context_file=$(issue_ref_to_context_file "$issue_ref")
+    
+    if [ ! -f "$context_file" ]; then
+        echo ""
+        return
+    fi
+    
+    python3 << PYEOF
+import json
+import sys
+
+context_file = "$context_file"
+
+try:
+    with open(context_file, 'r') as f:
+        ctx = json.load(f)
+    
+    lines = []
+    lines.append("## PREVIOUS CONTEXT")
+    lines.append(f"Issue: {ctx.get('issue_ref', 'unknown')}")
+    lines.append(f"Last updated: {ctx.get('updated_at', 'unknown')}")
+    lines.append(f"Current branch: {ctx.get('current_branch', 'unknown')}")
+    lines.append("")
+    lines.append("### Previous work summary:")
+    lines.append(ctx.get('last_message', '(no previous message)'))
+    lines.append("")
+    
+    history = ctx.get('conversation_history', [])
+    if history:
+        lines.append("### Conversation history:")
+        for msg in history[-5:]:
+            role = msg.get('role', 'unknown')
+            content = msg.get('content', '')
+            ts = msg.get('timestamp', '')
+            lines.append(f"- [{ts}] {role}: {content[:200]}...")
+    
+    print('\n'.join(lines))
+    
+except Exception as e:
+    print(f"Warning: Failed to load context: {e}", file=sys.stderr)
+    print("", file=sys.stderr)
+PYEOF
+}
+
+kugetsu_context_dump() {
+    local issue_ref="$1"
+    local message="$2"
+    local branch_name="${3:-}"
+    
+    if [ "$ENABLE_CONTEXT_DUMP" != "true" ]; then
+        return
+    fi
+    
+    local context_file=$(issue_ref_to_context_file "$issue_ref")
+    mkdir -p "$CONTEXT_DIR"
+    
+    python3 << PYEOF
+import json
+import os
+from datetime import datetime
+
+context_file = "$context_file"
+issue_ref = "$issue_ref"
+message = """$message"""
+branch_name = "$branch_name"
+
+context = {
+    "issue_ref": issue_ref,
+    "current_branch": branch_name,
+    "updated_at": datetime.now().isoformat() + "Z",
+    "last_message": message[:500] if message else "",
+    "conversation_history": []
+}
+
+if os.path.exists(context_file):
+    try:
+        with open(context_file, 'r') as f:
+            existing = json.load(f)
+        
+        history = existing.get('conversation_history', [])
+        history.append({
+            "role": "user",
+            "content": message[:1000] if message else "",
+            "timestamp": datetime.now().isoformat() + "Z"
+        })
+        history = history[-20:]
+        
+        context["conversation_history"] = history
+        context["created_at"] = existing.get("created_at", context["updated_at"])
+    except:
+        context["created_at"] = datetime.now().isoformat() + "Z"
+else:
+    context["created_at"] = datetime.now().isoformat() + "Z"
+
+with open(context_file, 'w') as f:
+    json.dump(context, f, indent=2)
+PYEOF
+}
+
+kugetsu_context_update_message() {
+    local issue_ref="$1"
+    local message="$2"
+    
+    if [ "$ENABLE_CONTEXT_DUMP" != "true" ]; then
+        return
+    fi
+    
+    local context_file=$(issue_ref_to_context_file "$issue_ref")
+    
+    if [ ! -f "$context_file" ]; then
+        return
+    fi
+    
+    python3 << PYEOF
+import json
+from datetime import datetime
+
+context_file = "$context_file"
+message = """$message"""
+
+try:
+    with open(context_file, 'r') as f:
+        ctx = json.load(f)
+    
+    history = ctx.get('conversation_history', [])
+    history.append({
+        "role": "assistant",
+        "content": message[:1000] if message else "",
+        "timestamp": datetime.now().isoformat() + "Z"
+    })
+    history = history[-20:]
+    
+    ctx["conversation_history"] = history
+    ctx["last_message"] = message[:500] if message else ""
+    ctx["updated_at"] = datetime.now().isoformat() + "Z"
+    
+    with open(context_file, 'w') as f:
+        json.dump(ctx, f, indent=2)
+except Exception as e:
+    pass
+PYEOF
+}
+
+ensure_queue_dirs() {
+    mkdir -p "$QUEUE_ITEMS_DIR"
+}
+
+generate_queue_id() {
+    echo "q_$(date +%s)_$$_$RANDOM"
+}
+
+enqueue_task() {
+    local issue_ref="$1"
+    local message="$2"
+    
+    if [ -z "$issue_ref" ] || [ -z "$message" ]; then
+        echo "Error: enqueue_task requires <issue-ref> and <message>" >&2
+        return 1
+    fi
+    
+    validate_issue_ref "$issue_ref"
+    ensure_queue_dirs
+    
+    local queue_id=$(generate_queue_id)
+    local pending_since=$(date -Iseconds)
+    
+    python3 << PYEOF
+import json
+
+queue_item = {
+    "id": "$queue_id",
+    "issue_ref": "$issue_ref",
+    "message": """$message""",
+    "state": "pending",
+    "pending_since": "$pending_since",
+    "notified_at": None,
+    "completed_at": None,
+    "error": None
+}
+
+with open("$QUEUE_ITEMS_DIR/${queue_id}.json", "w") as f:
+    json.dump(queue_item, f, indent=2)
+
+print(f"Enqueued: $queue_id")
+PYEOF
+}
+
+get_pending_tasks() {
+    local limit="${1:-10}"
+    
+    if [ ! -d "$QUEUE_ITEMS_DIR" ]; then
+        echo "[]"
+        return
+    fi
+    
+    find "$QUEUE_ITEMS_DIR" -name "*.json" -type f 2>/dev/null | while read -r file; do
+        local state=$(python3 -c "import json; print(json.load(open('$file')).get('state', ''))" 2>/dev/null || echo "")
+        if [ "$state" = "pending" ]; then
+            cat "$file"
+        fi
+    done | head -"$limit"
+}
+
+get_queue_stats() {
+    local total=0
+    local pending=0
+    local notified=0
+    local completed=0
+    local error=0
+    
+    if [ -d "$QUEUE_ITEMS_DIR" ]; then
+        for file in "$QUEUE_ITEMS_DIR"/*.json; do
+            [ -f "$file" ] || continue
+            total=$((total + 1))
+            local state=$(python3 -c "import json; print(json.load(open('$file')).get('state', ''))" 2>/dev/null || echo "")
+            case "$state" in
+                pending) pending=$((pending + 1)) ;;
+                notified) notified=$((notified + 1)) ;;
+                completed) completed=$((completed + 1)) ;;
+                error) error=$((error + 1)) ;;
+            esac
+        done
+    fi
+    
+    echo "{\"total\": $total, \"pending\": $pending, \"notified\": $notified, \"completed\": $completed, \"error\": $error}"
+}
+
+update_queue_item_state() {
+    local queue_id="$1"
+    local new_state="$2"
+    local session_id="${3:-}"
+    local pid="${4:-}"
+    
+    local item_file="$QUEUE_ITEMS_DIR/${queue_id}.json"
+    if [ ! -f "$item_file" ]; then
+        echo "Error: Queue item not found: $queue_id" >&2
+        return 1
+    fi
+    
+    python3 << PYEOF
+import json
+from datetime import datetime
+
+item_file = "$item_file"
+new_state = "$new_state"
+session_id = "$session_id"
+pid = "$pid"
+
+with open(item_file, 'r') as f:
+    item = json.load(f)
+
+item['state'] = new_state
+
+if new_state == "notified":
+    item['notified_at'] = datetime.now().isoformat() + "Z"
+    if session_id:
+        item['opencode_session_id'] = session_id
+    if pid:
+        item['pid'] = int(pid) if pid.isdigit() else None
+elif new_state == "completed":
+    item['completed_at'] = datetime.now().isoformat() + "Z"
+elif new_state == "error":
+    item['error'] = datetime.now().isoformat() + "Z"
+
+with open(item_file, 'w') as f:
+    json.dump(item, f, indent=2)
+
+print(f"Updated $queue_id to state: $new_state")
+PYEOF
+}
+
+check_task_timeouts() {
+    if [ ! -d "$QUEUE_ITEMS_DIR" ]; then
+        return
+    fi
+    
+    local timeout_hours="${TASK_TIMEOUT_HOURS:-1}"
+    
+    for item in "$QUEUE_ITEMS_DIR"/*.json; do
+        [ -f "$item" ] || continue
+        
+        local state=$(python3 -c "import json; print(json.load(open('$item')).get('state', ''))" 2>/dev/null)
+        if [ "$state" != "notified" ]; then
+            continue
+        fi
+        
+        local notified_at=$(python3 -c "import json; print(json.load(open('$item')).get('notified_at', ''))" 2>/dev/null)
+        if [ -z "$notified_at" ]; then
+            continue
+        fi
+        
+        local queue_id=$(basename "$item" .json)
+        local pid=$(python3 -c "import json; print(json.load(open('$item')).get('pid', ''))" 2>/dev/null)
+        local session_id=$(python3 -c "import json; print(json.load(open('$item')).get('opencode_session_id', ''))" 2>/dev/null)
+        
+        local notified_epoch=$(date -d "$notified_at" +%s 2>/dev/null || echo "0")
+        local now_epoch=$(date +%s)
+        local hours_elapsed=$(( (now_epoch - notified_epoch) / 3600 ))
+        
+        if [ "$hours_elapsed" -ge "$timeout_hours" ]; then
+            echo "Task $queue_id timed out after ${hours_elapsed}h (limit: ${timeout_hours}h)"
+            
+            if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then
+                echo "Killing process $pid"
+                kill "$pid" 2>/dev/null || true
+            fi
+            
+            if [ -n "$session_id" ]; then
+                local worktree_path=""
+                for session_file in "$SESSIONS_DIR"/*.json; do
+                    [ -f "$session_file" ] || continue
+                    local sess_id=$(python3 -c "import json; print(json.load(open('$session_file')).get('opencode_session_id', ''))" 2>/dev/null)
+                    if [ "$sess_id" = "$session_id" ]; then
+                        worktree_path=$(python3 -c "import json; print(json.load(open('$session_file')).get('worktree_path', ''))" 2>/dev/null)
+                        break
+                    fi
+                done
+                
+                if [ -n "$worktree_path" ]; then
+                    pkill -f "opencode.*$worktree_path" 2>/dev/null || true
+                fi
+            fi
+            
+            update_queue_item_state "$queue_id" "error"
+            
+            local issue_ref=$(python3 -c "import json; print(json.load(open('$item')).get('issue_ref', ''))" 2>/dev/null)
+            if [ -n "$issue_ref" ]; then
+                local session_file=$(get_session_for_issue "$issue_ref")
+                if [ -n "$session_file" ] && [ "$session_file" != "null" ]; then
+                    python3 << PYEOF
+import json
+session_path = "$SESSIONS_DIR/$session_file"
+try:
+    with open(session_path, 'r') as f:
+        session = json.load(f)
+    session['state'] = 'timeout'
+    with open(session_path, 'w') as f:
+        json.dump(session, f, indent=2)
+    print(f"Marked session for $issue_ref as timeout")
+except Exception as e:
+    print(f"Error marking session: {e}")
+PYEOF
+                fi
+            fi
+        fi
+    done
+}
+
+cleanup_old_queue_items() {
+    local days="${QUEUE_CLEANUP_AGE_DAYS:-7}"
+    
+    if [ ! -d "$QUEUE_ITEMS_DIR" ]; then
+        return
+    fi
+    
+    find "$QUEUE_ITEMS_DIR" -name "*.json" -type f -mtime "+$days" 2>/dev/null | while read -r file; do
+        local state=$(python3 -c "import json; print(json.load(open('$file')).get('state', ''))" 2>/dev/null || echo "")
+        if [ "$state" = "completed" ] || [ "$state" = "error" ]; then
+            rm -f "$file"
+            echo "Cleaned up: $(basename "$file")"
+        fi
+    done
+}
+
+update_session_pr_url() {
+    local issue_ref="$1"
+    local pr_url="$2"
+    
+    if [ -z "$issue_ref" ] || [ -z "$pr_url" ]; then
+        echo "Error: update_session_pr_url requires <issue-ref> and <pr-url>" >&2
+        return 1
+    fi
+    
+    local session_file=$(get_session_for_issue "$issue_ref")
+    if [ -z "$session_file" ] || [ "$session_file" = "null" ]; then
+        echo "Error: No session found for '$issue_ref'" >&2
+        return 1
+    fi
+    
+    local session_path="$SESSIONS_DIR/$session_file"
+    
+    if [ ! -f "$session_path" ]; then
+        echo "Error: Session file not found: $session_path" >&2
+        return 1
+    fi
+    
+    python3 << PYEOF
+import json
+
+session_path = "$session_path"
+pr_url = "$pr_url"
+
+with open(session_path, 'r') as f:
+    session = json.load(f)
+
+session['pr_url'] = pr_url
+
+with open(session_path, 'w') as f:
+    json.dump(session, f, indent=2)
+
+print(f"Updated pr_url to: {pr_url}")
+PYEOF
+}
+
 read_index() {
     if [ -f "$INDEX_FILE" ]; then
         cat "$INDEX_FILE"
@@ -734,93 +1218,190 @@ find_sessions_by_issue_number() {
     echo "$results"
 }
 
-cmd_delegate() {
+cmd_queue() {
-    local message="${1:-}"
+    local action="${1:-list}"
-    local verbosity="${KUGETSU_VERBOSITY:-default}"
+    shift
     
-    if [ -z "$message" ]; then
+    case "$action" in
-        echo "Error: message is required" >&2
+        list)
-        echo "Usage: kugetsu delegate <message>" >&2
+            ensure_queue_dirs
+            local stats=$(get_queue_stats)
+            echo "Queue Statistics:"
+            echo "$stats" | python3 -c "import json, sys; d=json.load(sys.stdin); print(f\"  Total: {d['total']}\n  Pending: {d['pending']}\n  Notified: {d['notified']}\n  Completed: {d['completed']}\n  Error: {d['error']}\")"
+            echo ""
+            echo "Pending tasks:"
+            local count=0
+            for item in "$QUEUE_ITEMS_DIR"/*.json; do
+                [ -f "$item" ] || continue
+                local state=$(python3 -c "import json; print(json.load(open('$item')).get('state', '')" 2>/dev/null)
+                if [ "$state" = "pending" ]; then
+                    count=$((count + 1))
+                    python3 -c "import json; d=json.load(open('$item')); print(f\"  [{d['id']}] {d['issue_ref']}: {d['message'][:50]}...\n    pending since: {d['pending_since']}\")" 2>/dev/null
+                fi
+            done
+            if [ $count -eq 0 ]; then
+                echo "  (none)"
+            fi
+            ;;
+        stats)
+            local stats=$(get_queue_stats)
+            echo "$stats" | python3 -c "import json, sys; d=json.load(sys.stdin); print(json.dumps(d, indent=2))"
+            ;;
+        clear)
+            echo "Cleaning up old queue items..."
+            cleanup_old_queue_items
+            ;;
+        enqueue)
+            local issue_ref="${1:-}"
+            local message="${2:-}"
+            if [ -z "$issue_ref" ] || [ -z "$message" ]; then
+                echo "Usage: kugetsu queue enqueue <issue-ref> <message>" >&2
                 exit 1
             fi
+            enqueue_task "$issue_ref" "$message"
+            ;;
+        *)
+            echo "Usage: kugetsu queue [list|stats|clear|enqueue <issue-ref> <message>]" >&2
+            exit 1
+            ;;
+    esac
+}
+
+cmd_queue_daemon() {
+    local action="${1:-status}"
+    shift
+    
+    case "$action" in
+        start)
+            if [ -f "$QUEUE_DAEMON_PID_FILE" ]; then
+                local old_pid=$(cat "$QUEUE_DAEMON_PID_FILE" 2>/dev/null)
+                if [ -n "$old_pid" ] && kill -0 "$old_pid" 2>/dev/null; then
+                    echo "Daemon is already running with PID $old_pid"
+                    exit 1
+                fi
+                rm -f "$QUEUE_DAEMON_PID_FILE"
+            fi
+            
+            mkdir -p "$(dirname "$QUEUE_DAEMON_LOG_FILE")"
+            nohup bash "$0" queue-daemon run >> "$QUEUE_DAEMON_LOG_FILE" 2>&1 &
+            local daemon_pid=$!
+            echo "$daemon_pid" > "$QUEUE_DAEMON_PID_FILE"
+            echo "Queue daemon started with PID $daemon_pid"
+            echo "Log file: $QUEUE_DAEMON_LOG_FILE"
+            ;;
+        stop)
+            if [ ! -f "$QUEUE_DAEMON_PID_FILE" ]; then
+                echo "Daemon PID file not found. Is the daemon running?"
+                exit 1
+            fi
+            local pid=$(cat "$QUEUE_DAEMON_PID_FILE")
+            if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then
+                kill "$pid"
+                rm -f "$QUEUE_DAEMON_PID_FILE"
+                echo "Daemon stopped (PID $pid)"
+            else
+                echo "Daemon not running (stale PID file)"
+                rm -f "$QUEUE_DAEMON_PID_FILE"
+            fi
+            ;;
+        restart)
+            cmd_queue_daemon stop
+            sleep 1
+            cmd_queue_daemon start
+            ;;
+        status)
+            if [ -f "$QUEUE_DAEMON_PID_FILE" ]; then
+                local pid=$(cat "$QUEUE_DAEMON_PID_FILE")
+                if [ -n "$pid" ] && kill -0 "$pid" 2>/dev/null; then
+                    echo "Queue daemon is running (PID $pid)"
+                else
+                    echo "Daemon not running (stale PID file)"
+                    rm -f "$QUEUE_DAEMON_PID_FILE"
+                fi
+            else
+                echo "Queue daemon is not running"
+            fi
+            ;;
+        logs)
+            local lines="${1:-50}"
+            if [ -f "$QUEUE_DAEMON_LOG_FILE" ]; then
+                tail -"$lines" "$QUEUE_DAEMON_LOG_FILE"
+            else
+                echo "No daemon log file found"
+            fi
+            ;;
+        run)
+            queue_daemon_loop
+            ;;
+        *)
+            echo "Usage: kugetsu queue-daemon [start|stop|restart|status|logs]" >&2
+            exit 1
+            ;;
+    esac
+}
+
+queue_daemon_loop() {
+    local pid=$$
+    echo "$pid" > "$QUEUE_DAEMON_PID_FILE"
+    echo "Queue daemon started (PID $pid) at $(date)"
+    
+    while true; do
+        sleep $((QUEUE_DAEMON_INTERVAL_MINUTES * 60))
+        
+        if [ ! -f "$QUEUE_DAEMON_PID_FILE" ] || [ "$(cat "$QUEUE_DAEMON_PID_FILE")" != "$pid" ]; then
+            echo "PID file changed, stopping daemon"
+            exit 0
+        fi
+        
+        check_task_timeouts
+        process_queue
+    done
+}
+
+process_queue() {
+    local active_count=$(count_active_dev_sessions)
+    
+    if [ "$active_count" -ge "$MAX_CONCURRENT_AGENTS" ]; then
+        return
+    fi
+    
+    local available_slots=$((MAX_CONCURRENT_AGENTS - active_count))
+    local batch_size=$QUEUE_DAEMON_BATCH_SIZE
+    [ "$batch_size" -gt "$available_slots" ] && batch_size=$available_slots
+    
+    if [ "$batch_size" -le 0 ]; then
+        return
+    fi
     
     local pm_session=$(get_pm_agent_session_id)
-    if [ -z "$pm_session" ] || [ "$pm_session" = "null" ] || [ "$pm_session" = "None" ]; then
+    if [ -z "$pm_session" ] || [ "$pm_session" = "null" ]; then
-        echo "Error: PM agent session not found. Run 'kugetsu init' first." >&2
+        return
-        exit 1
     fi
     
+    local count=0
+    for item in $(ls -t "$QUEUE_ITEMS_DIR"/*.json 2>/dev/null | head -20); do
+        [ -f "$item" ] || continue
+        [ $count -ge "$batch_size" ] && break
+        
+        local state=$(python3 -c "import json; print(json.load(open('$item')).get('state', ''))" 2>/dev/null)
+        if [ "$state" != "pending" ]; then
+            continue
+        fi
+        
+        local queue_id=$(basename "$item" .json)
+        local issue_ref=$(python3 -c "import json; print(json.load(open('$item')).get('issue_ref', ''))" 2>/dev/null)
+        local message=$(python3 -c "import json; print(json.load(open('$item')).get('message', ''))" 2>/dev/null)
+        
+        if [ -z "$issue_ref" ] || [ -z "$message" ]; then
+            continue
+        fi
+        
+        update_queue_item_state "$queue_id" "notified"
+        
+        local log_file="$LOGS_DIR/delegate-${queue_id}.log"
         mkdir -p "$LOGS_DIR"
-    local log_file="$LOGS_DIR/delegate-$(date +%s).log"
         
-    local parsed=$(parse_issue_ref_from_message "$message")
+        local env_sh="set -a; "
-    local gitserver=$(echo "$parsed" | cut -d'|' -f1)
-    local owner=$(echo "$parsed" | cut -d'|' -f2)
-    local repo=$(echo "$parsed" | cut -d'|' -f3)
-    local issue_number=$(echo "$parsed" | cut -d'|' -f4)
-    
-    local missing_info=$(get_missing_info "$parsed")
-    local context_injection=""
-    if [ -n "$missing_info" ]; then
-        context_injection=$(build_missing_info_context "$missing_info")
-        echo "NOTE: Delegation missing information: ${missing_info}"
-    fi
-    
-    local candidates=""
-    local candidate_count=0
-    
-    if [ -n "$issue_number" ]; then
-        local worktrees=$(find_worktrees_by_issue_number "$issue_number")
-        local sessions=$(find_sessions_by_issue_number "$issue_number")
-        
-        while IFS=: read -r path type; do
-            if [ -n "$path" ]; then
-                candidate_count=$((candidate_count + 1))
-                candidates="${candidates}${candidate_count}) ${path} (${type})
-"
-            fi
-        done <<< "$worktrees"
-        
-        while IFS=: read -r path type; do
-            if [ -n "$path" ]; then
-                candidate_count=$((candidate_count + 1))
-                candidates="${candidates}${candidate_count}) ${path} (${type})
-"
-            fi
-        done <<< "$sessions"
-    fi
-    
-    local use_worktree=""
-    if [ $candidate_count -gt 0 ]; then
-        echo "Found $candidate_count existing worktree(s)/session(s) for issue #${issue_number}:"
-        echo "$candidates"
-        echo "r) Delegate anyway (without routing)"
-        echo "Which one to use? [1-${candidate_count}/r]: "
-        read -r choice
-        
-        if [ "$choice" = "r" ] || [ -z "$choice" ]; then
-            use_worktree=""
-        elif [ "$choice" -ge 1 ] && [ "$choice" -le "$candidate_count" ]; then
-            local selected=$(echo "$candidates" | sed -n "${choice}p")
-            use_worktree=$(echo "$selected" | sed 's/) .*//')
-        fi
-    fi
-    
-    local final_message="${message}${context_injection}"
-    
-    if [ -n "$use_worktree" ]; then
-        if [ -d "$use_worktree" ]; then
-            echo "Using worktree: $use_worktree"
-            final_message="${final_message}
-
-NOTE: Worktree selected: ${use_worktree}"
-        fi
-    fi
-    
-    local temp_dir="${KUGETSU_TEMP_DIR:-$HOME/.local/share/opencode/tool-output}"
-    
-    mkdir -p "$ENV_DIR"
-    local env_sh="set -a; export KUGETSU_TEMP_DIR='$temp_dir'; export KUGETSU_VERBOSITY='$verbosity'; "
         if [ -f "$ENV_DIR/pm-agent.env" ]; then
             env_sh="${env_sh}source '$ENV_DIR/pm-agent.env'; "
         elif [ -f "$ENV_DIR/default.env" ]; then
@@ -828,10 +1409,41 @@ NOTE: Worktree selected: ${use_worktree}"
         fi
         env_sh="${env_sh}set +a; "
         
-    nohup sh -c "${env_sh}opencode run '${final_message}' --continue --session '$pm_session' >> '$log_file' 2>&1" > /dev/null 2>&1 &
+        nohup sh -c "${env_sh}opencode run 'Delegate task: ${message}' --continue --session '$pm_session'" >> "$log_file" 2>&1 &
-    disown
+        local fork_pid=$!
-    echo "Delegated to PM agent (logged to $(basename "$log_file"))"
+        
-    echo "Verbosity: $verbosity"
+        update_queue_item_state "$queue_id" "notified" "" "$fork_pid"
+        
+        echo "Queued task $queue_id for PM agent (PID: $fork_pid)"
+        count=$((count + 1))
+    done
+}
+
+cmd_delegate() {
+    local message="${1:-}"
+    
+    if [ -z "$message" ]; then
+        echo "Error: message is required" >&2
+        echo "Usage: kugetsu delegate <message>" >&2
+        exit 1
+    fi
+    
+    local parsed=$(parse_issue_ref_from_message "$message")
+    local gitserver=$(echo "$parsed" | cut -d'|' -f1)
+    local owner=$(echo "$parsed" | cut -d'|' -f2)
+    local repo=$(echo "$parsed" | cut -d'|' -f3)
+    local issue_number=$(echo "$parsed" | cut -d'|' -f4)
+    
+    if [ -z "$issue_number" ] || [ -z "$gitserver" ] || [ -z "$owner" ] || [ -z "$repo" ]; then
+        echo "Error: Could not parse issue reference from message" >&2
+        echo "Message should contain an issue reference like 'github.com/user/repo#123'" >&2
+        exit 1
+    fi
+    
+    local issue_ref="${gitserver}/${owner}/${repo}#${issue_number}"
+    
+    enqueue_task "$issue_ref" "$message"
+    echo "Task enqueued. The queue daemon will process it when a slot is available."
 }
 
 cmd_logs() {
@@ -1401,6 +2013,7 @@ EOF
 cmd_start() {
     local issue_ref=""
     local message=""
+    local pr_url=""
     local args=("$@")
 
     args=$(set_debug_mode "${args[@]}")
@@ -1410,11 +2023,14 @@ cmd_start() {
             issue_ref="$arg"
         elif [ -z "$message" ]; then
             message="$arg"
+        elif [ -z "$pr_url" ]; then
+            pr_url="$arg"
         fi
     done
 
     if [ -z "$issue_ref" ] || [ -z "$message" ]; then
         echo "Error: start requires <issue-ref> and <message>" >&2
+        echo "Usage: kugetsu start <issue-ref> <message> [pr-url]" >&2
         exit 1
     fi
 
@@ -1463,7 +2079,10 @@ cmd_start() {
     > "$fork_log"
     
     local fork_context=$(kugetsu_get_fork_context "$issue_ref")
+    local previous_context=$(kugetsu_context_load "$issue_ref")
+    local branch_name=$(issue_ref_to_branch_name "$issue_ref")
     local full_message="${fork_context}
+${previous_context}
 
 ## YOUR TASK
 $message"
@@ -1543,11 +2162,30 @@ for row in cursor.fetchall():
 " 2>/dev/null || echo "  (failed to query DB)"
     fi
 
-    printf '{"type": "forked", "issue_ref": "%s", "opencode_session_id": "%s", "worktree_path": "%s", "created_at": "%s", "state": "idle"}\n' \
+    local branch_name=$(issue_ref_to_branch_name "$issue_ref")
-        "$issue_ref" "$new_session_id" "$worktree_path" "$(date -Iseconds)" > "$SESSIONS_DIR/$session_file"
+    
+    python3 << PYEOF > "$SESSIONS_DIR/$session_file"
+import json
+
+session = {
+    "type": "forked",
+    "issue_ref": "$issue_ref",
+    "opencode_session_id": "$new_session_id",
+    "worktree_path": "$worktree_path",
+    "created_at": "$(date -Iseconds)",
+    "state": "idle",
+    "branch_name": "$branch_name",
+    "pr_url": "$pr_url" if "$pr_url" else None
+}
+
+with open("$SESSIONS_DIR/$session_file", "w") as f:
+    json.dump(session, f, indent=2)
+PYEOF
 
     add_issue_to_index "$issue_ref" "$session_file"
     
+    kugetsu_context_dump "$issue_ref" "$message" "$branch_name"
+
     echo "Session started for '$issue_ref': $new_session_id"
     echo "Worktree: $worktree_path"
 }
@@ -1595,22 +2233,31 @@ cmd_continue() {
     local worktree_path=$(python3 -c "import json; print(json.load(open('$session_path')).get('worktree_path', ''))" 2>/dev/null || echo "")
 
     echo "Continuing session for '$session_name'..."
+    
+    local previous_context=$(kugetsu_context_load "$session_name")
+    local full_message="${previous_context}
+
+## CONTINUE TASK
+$message"
+    
     # Note: --continue always allowed (existing sessions don't count toward limit)
     # Wrap in subshell with cd to ensure worktree directory is set correctly in session DB
     if [ -n "$worktree_path" ] && [ -d "$worktree_path" ]; then
         echo "Using worktree: $worktree_path"
         if [ "$DEBUG_MODE" = true ]; then
-            (cd "$worktree_path" && opencode run "$message" --continue --session "$opencode_session_id" --dir "$worktree_path" 2>&1) | tee "$session_path.debug.log" &
+            (cd "$worktree_path" && opencode run "$full_message" --continue --session "$opencode_session_id" --dir "$worktree_path" 2>&1) | tee "$session_path.debug.log" &
         else
-            (cd "$worktree_path" && opencode run "$message" --continue --session "$opencode_session_id" --dir "$worktree_path" 2>&1) &
+            (cd "$worktree_path" && opencode run "$full_message" --continue --session "$opencode_session_id" --dir "$worktree_path" 2>&1) &
         fi
     else
         if [ "$DEBUG_MODE" = true ]; then
-            opencode run "$message" --continue --session "$opencode_session_id" 2>&1 | tee "$session_path.debug.log" &
+            opencode run "$full_message" --continue --session "$opencode_session_id" 2>&1 | tee "$session_path.debug.log" &
         else
-            opencode run "$message" --continue --session "$opencode_session_id" 2>&1 &
+            opencode run "$full_message" --continue --session "$opencode_session_id" 2>&1 &
         fi
     fi
+    
+    kugetsu_context_update_message "$session_name" "$message"
 }
 
 cmd_list() {
@@ -1820,6 +2467,25 @@ cmd_destroy() {
         remove_issue_from_index "$target"
         echo "Session for '$target' destroyed"
     else
+        if [ "$WORKTREE_CHECK_PR_STATUS" = "true" ]; then
+            local pr_url=$(python3 -c "import json; print(json.load(open('$session_path')).get('pr_url', '') or '')" 2>/dev/null || echo "")
+            if [ -n "$pr_url" ] && [ "$pr_url" != "None" ]; then
+                echo "Checking PR status at '$pr_url'..."
+                local pr_status=$(check_pr_status "$pr_url")
+                if [ "$pr_status" = "open" ]; then
+                    echo "Error: PR is still open at $pr_url" >&2
+                    echo "Use --force to destroy anyway, or close the PR first" >&2
+                    exit 1
+                elif [ "$pr_status" = "merged" ]; then
+                    echo "PR has been merged. Safe to destroy."
+                elif [ "$pr_status" = "closed" ]; then
+                    echo "PR has been closed. Safe to destroy."
+                else
+                    echo "Warning: Could not determine PR status (got: $pr_status). Proceeding anyway." >&2
+                fi
+            fi
+        fi
+        
         echo "Delete session and worktree for '$target'? [y/N] "
         local reply
         read reply
@@ -1887,6 +2553,43 @@ main() {
         destroy)
             cmd_destroy "$@"
             ;;
+        set-pr)
+            local issue_ref="${1:-}"
+            local pr_url="${2:-}"
+            if [ -z "$issue_ref" ] || [ -z "$pr_url" ]; then
+                echo "Usage: kugetsu set-pr <issue-ref> <pr-url>" >&2
+                echo "Example: kugetsu set-pr github.com/shoko/kugetsu#14 https://github.com/shoko/kugetsu/pulls/123" >&2
+                exit 1
+            fi
+            validate_issue_ref "$issue_ref"
+            update_session_pr_url "$issue_ref" "$pr_url"
+            ;;
+        context)
+            local issue_ref="${1:-}"
+            if [ -z "$issue_ref" ]; then
+                echo "Usage: kugetsu context <issue-ref>" >&2
+                echo "Show context for an issue" >&2
+                exit 1
+            fi
+            validate_issue_ref "$issue_ref"
+            local context_file=$(issue_ref_to_context_file "$issue_ref")
+            if [ -f "$context_file" ]; then
+                cat "$context_file"
+            else
+                echo "No context found for '$issue_ref'" >&2
+                exit 1
+            fi
+            ;;
+        queue)
+            local action="${1:-list}"
+            shift
+            cmd_queue "$action" "$@"
+            ;;
+        queue-daemon)
+            local action="${1:-status}"
+            shift
+            cmd_queue_daemon "$action" "$@"
+            ;;
         *)
             echo "Error: unknown command '$command'" >&2
             usage