feat: load previous dev log as context when cmd_continue recovers

The message passed to opencode run contains newlines and special
characters (parentheses, etc.) which break shell parsing when passed
directly in double quotes.

Fix by writing message to temp file and using '@msg_file' syntax
to pass to opencode run. This handles any characters in the message.

skills/kugetsu/scripts/kugetsu-config.sh

@@ -32,7 +32,7 @@ if [ -f "$KUGETSU_DIR/config" ]; then
 fi
 
 mask_sensitive_vars() {
-    local line="$1"
+    local line="${1:-}"
     for var in GITEA_TOKEN GITHUB_TOKEN GITLAB_TOKEN API_KEY PASSWORD TOKEN SECRET; do
         if [[ "$line" =~ $var ]]; then
             line=$(echo "$line" | sed -E "s/=.*/=***MASKED***/")
@@ -41,6 +41,11 @@ mask_sensitive_vars() {
     echo "$line"
 }
 
+strip_ansi_codes() {
+    local line="${1:-}"
+    echo "$line" | sed 's/\x1b\[[0-9;]*m//g' | sed 's/\x1b\[[0-9;]*[a-zA-Z]//g'
+}
+
 load_agent_env() {
     local agent_type="${1:-base}"
     local env_file="$ENV_DIR/${agent_type}.env"

skills/kugetsu/scripts/kugetsu-index.sh

@@ -50,7 +50,11 @@ set_base_in_index() {
     if [ "$session_id" = "null" ]; then
         write_index "null" "$pm_agent" "$issues"
     else
-        write_index "\"$session_id\"" "$pm_agent" "$issues"
+        if [ "$pm_agent" = "null" ]; then
+            write_index "\"$session_id\"" "null" "$issues"
+        else
+            write_index "\"$session_id\"" "\"$pm_agent\"" "$issues"
+        fi
     fi
 }
 
@@ -63,7 +67,11 @@ set_pm_agent_in_index() {
     if [ "$session_id" = "null" ]; then
         write_index "$base" "null" "$issues"
     else
-        write_index "$base" "\"$session_id\"" "$issues"
+        if [ "$base" = "null" ]; then
+            write_index "null" "\"$session_id\"" "$issues"
+        else
+            write_index "\"$base\"" "\"$session_id\"" "$issues"
+        fi
     fi
 }
 
@@ -79,7 +87,19 @@ add_issue_to_index() {
     
     issues=$(python3 -c "import sys, json; d=json.load(sys.stdin); d['$issue_ref']='$session_file'; print(json.dumps(d))" <<< "$issues")
     
-    write_index "$base" "$pm_agent" "$issues"
+    if [ "$base" = "null" ]; then
+        if [ "$pm_agent" = "null" ]; then
+            write_index "null" "null" "$issues"
+        else
+            write_index "null" "\"$pm_agent\"" "$issues"
+        fi
+    else
+        if [ "$pm_agent" = "null" ]; then
+            write_index "\"$base\"" "null" "$issues"
+        else
+            write_index "\"$base\"" "\"$pm_agent\"" "$issues"
+        fi
+    fi
 }
 
 remove_issue_from_index() {
@@ -93,7 +113,19 @@ remove_issue_from_index() {
     
     issues=$(python3 -c "import sys, json; d=json.load(sys.stdin); d.pop('$issue_ref', None); print(json.dumps(d))" <<< "$issues")
     
-    write_index "$base" "$pm_agent" "$issues"
+    if [ "$base" = "null" ]; then
+        if [ "$pm_agent" = "null" ]; then
+            write_index "null" "null" "$issues"
+        else
+            write_index "null" "\"$pm_agent\"" "$issues"
+        fi
+    else
+        if [ "$pm_agent" = "null" ]; then
+            write_index "\"$base\"" "null" "$issues"
+        else
+            write_index "\"$base\"" "\"$pm_agent\"" "$issues"
+        fi
+    fi
 }
 
 validate_issue_ref() {

skills/kugetsu/scripts/kugetsu-log.sh

@@ -24,7 +24,9 @@ cmd_logs() {
             echo ""
             echo "--- $log ---"
             tail -20 "$LOGS_DIR/$log" | while read line; do
-                echo "  $(mask_sensitive_vars "$line")"
+                line=$(strip_ansi_codes "$line")
+                line=$(mask_sensitive_vars "$line")
+                echo "  $line"
             done
         fi
     done

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

@@ -44,7 +44,7 @@ check_task_completion() {
 
     if [ -n "$pid" ] && [ "$pid" != "None" ]; then
         if ! kill -0 "$pid" 2>/dev/null; then
-            local worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$HOME/.kugetsu-worktrees")
+            local worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$WORKTREES_DIR")
             local has_commits=false
 
             if [ -d "$worktree_path" ] && [ -d "$worktree_path/.git" ]; then
@@ -64,7 +64,7 @@ check_task_completion() {
         fi
     else
         if [ -n "$session_id" ] && ! opencode session list 2>/dev/null | grep -q "$session_id"; then
-            local worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$HOME/.kugetsu-worktrees")
+            local worktree_path=$(issue_ref_to_worktree_path "$issue_ref" "$WORKTREES_DIR")
             local has_commits=false
 
             if [ -d "$worktree_path" ] && [ -d "$worktree_path/.git" ]; then

skills/kugetsu/scripts/kugetsu-session.sh

@@ -83,6 +83,10 @@ EOF
     if [ -n "$existing_base" ] && [ "$existing_base" != "null" ]; then
         if [ "$force" = true ]; then
             echo "Warning: Reinitializing sessions (force mode)" >&2
+            echo "Destroying all sessions, worktrees, and logs..." >&2
+            cmd_destroy --base -y 2>/dev/null || true
+            cmd_destroy --pm-agent -y 2>/dev/null || true
+            rm -f "$LOGS_DIR"/*.log 2>/dev/null || true
         else
             echo "Error: Base session already exists: $existing_base" >&2
             echo "Use --force to reinitialize" >&2
@@ -221,7 +225,10 @@ cmd_delegate() {
         exit 1
     fi
     
-    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --session '$new_session'" >> "$log_file" 2>&1 &
+    local msg_file="$LOGS_DIR/msg-$new_session.txt"
+    printf '%s' "$message" > "$msg_file"
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$new_session'" >> "$log_file" 2>&1 &
+    rm -f "$msg_file"
     echo "Delegated to new session (logged to $(basename "$log_file"))"
 }
 
@@ -234,24 +241,47 @@ create_session() {
     fi
     
     local before_json=$(opencode session list --format=json 2>/dev/null)
-    local before_ids=$(echo "$before_json" | python3 -c "import sys,json; sessions=json.load(sys.stdin); print(' '.join(s['id'] for s in sessions))" 2>/dev/null || echo "")
+    local before_set=$(echo "$before_json" | python3 -c "import sys,json; sessions=json.load(sys.stdin); print('|'.join(s['id'] for s in sessions))" 2>/dev/null || echo "|")
     
-    opencode run --fork --session "$base_session" "new session" 2>/dev/null
+    opencode run --fork --session "$base_session" "new session" >/dev/null 2>&1
+    
+    sleep 1
     
     local after_json=$(opencode session list --format=json 2>/dev/null)
-    local after_ids=$(echo "$after_json" | python3 -c "import sys,json; sessions=json.load(sys.stdin); print(' '.join(s['id'] for s in sessions))" 2>/dev/null || echo "")
+    local after_sessions=$(echo "$after_json" | python3 -c "import sys,json; sessions=json.load(sys.stdin); [print(s['id']) for s in sessions]" 2>/dev/null || true)
     
     local new_session_id=""
-    for sess in $after_ids; do
-        if [[ ! " $before_ids " =~ " $sess " ]] && [[ "$sess" != "$base_session" ]]; then
+    while IFS= read -r sess; do
+        if [[ -n "$sess" ]] && [[ ! "$before_set" =~ \|${sess}\| ]]; then
             new_session_id="$sess"
             break
         fi
-    done
+    done <<< "$after_sessions"
     
     echo "$new_session_id"
 }
 
+load_session_context() {
+    local opencode_session_id="$1"
+    local sanitized_id=$(echo "$opencode_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
+    local log_file="$LOGS_DIR/dev-$sanitized_id.log"
+    
+    if [ ! -f "$log_file" ]; then
+        echo ""
+        return
+    fi
+    
+    local context_summary="Previous session context (work was in progress, session may have crashed or been interrupted):\n\n"
+    context_summary+=$(tail -100 "$log_file" 2>/dev/null | while IFS= read -r line; do
+        line=$(strip_ansi_codes "$line")
+        echo "  $line"
+    done | head -50)
+    
+    context_summary+="\n\nPlease review this context and continue the work appropriately."
+    
+    echo "$context_summary"
+}
+
 build_dev_agent_message() {
     local issue_ref="$1"
     local user_message="${2:-}"
@@ -309,26 +339,44 @@ cmd_start() {
         exit 1
     fi
     
+    local session_file=$(issue_ref_to_filename "$issue_ref")
+    local session_path="$SESSIONS_DIR/$session_file"
+    local worktree_exists=false
+    
     if worktree_exists "$issue_ref"; then
-        echo "Issue '$issue_ref' already has a worktree. Use 'kugetsu continue' instead."
+        worktree_exists=true
+    fi
+    
+    local session_exists=false
+    if [ -f "$session_path" ]; then
+        session_exists=true
+    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
+    fi
+    
+    if ! $worktree_exists && $session_exists; then
+        echo "Warning: Session exists but worktree is missing. Removing stale session to recreate both..." >&2
+        rm -f "$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
     fi
     
-    local session_file=$(issue_ref_to_filename "$issue_ref")
-    local session_path="$SESSIONS_DIR/$session_file"
-    
-    if [ -f "$session_path" ]; then
-        echo "Session file already exists: $session_file"
-        echo "Use 'kugetsu continue $issue_ref' to continue work."
-        exit 1
-    fi
-    
     create_worktree "$issue_ref" "$WORKTREES_DIR"
     
     local new_session_id=$(create_session "$base_session_id")
@@ -351,7 +399,11 @@ cmd_start() {
     load_agent_env "dev"
     
     cd "$worktree_path"
-    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$dev_message' --session '$new_session_id'" >> "$LOGS_DIR/dev-$new_session_id.log" 2>&1 &
+    local sanitized_id=$(echo "$new_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
+    local msg_file="$LOGS_DIR/msg-$sanitized_id.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-$sanitized_id.log" 2>&1 &
+    rm -f "$msg_file"
     
     echo "Session started for '$issue_ref': $new_session_id"
     echo "Worktree: $worktree_path"
@@ -400,16 +452,32 @@ cmd_continue() {
     local worktree_path=$(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 '$session_name'. Recovering..." >&2
+        local previous_context=$(load_session_context "$opencode_session_id")
+        rm -f "$session_path"
+        remove_issue_from_index "$session_name"
+        if [ -n "$previous_context" ]; then
+            message="$previous_context"
+            if [ -n "$message" ]; then
+                message="$message"$'\n\n'"Additional user message: $message"
+            fi
+        fi
+        echo "Calling cmd_start to create new session and worktree with context..." >&2
+        cmd_start "$session_name" "$message"
+        return $?
+    fi
+    
     if [ -z "$message" ]; then
         message=$(build_dev_agent_message "$issue_ref" "")
     fi
     
-    if [ -n "$worktree_path" ] && [ -d "$worktree_path" ]; then
-        cd "$worktree_path"
-        nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &
-    else
-        nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '$message' --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$opencode_session_id.log" 2>&1 &
-    fi
+    cd "$worktree_path"
+    local sanitized_id=$(echo "$opencode_session_id" | sed 's/[^a-zA-Z0-9_-]/_/g')
+    local msg_file="$LOGS_DIR/msg-$sanitized_id.txt"
+    printf '%s' "$message" > "$msg_file"
+    nohup sh -c "GITEA_TOKEN='${GITEA_TOKEN:-}' opencode run '@$msg_file' --session '$opencode_session_id'" >> "$LOGS_DIR/dev-$sanitized_id.log" 2>&1 &
+    rm -f "$msg_file"
 }
 
 cmd_list() {