feat(phase3a): initial Chat Agent infrastructure

Phase 3a implementation - Hermes Chat Agent configuration:

- kugetsu-chat/SOUL.md - Chat Agent persona and routing logic
- kugetsu-chat/SKILL.md - Chat Agent skill documentation
- kugetsu-chat/scripts/setup - Configuration setup script
- kugetsu-pm/SKILL.md - PM Agent skill documentation
- kugetsu-helpers/SKILL.md - Helper tools for Hermes-kugetsu integration
- kugetsu-helpers/scripts/kugetsu-helpers - Shell functions for delegation

Provides:
- Intent classification (small talk, task, status, mode change)
- PM Agent delegation via terminal()
- kugetsu status checking
- Session management helpers

skills/kugetsu-helpers/scripts/kugetsu-helpers

@@ -0,0 +1,148 @@
+#!/bin/bash
+# kugetsu-helpers - Shell functions for Hermes to interact with kugetsu
+#
+# These functions provide tools for routing and delegation to PM Agent.
+
+set -euo pipefail
+
+KUGETSU_DIR="${KUGETSU_DIR:-$HOME/.kugetsu}"
+INDEX_FILE="$KUGETSU_DIR/index.json"
+
+kugetsu_get_pm_session() {
+    if [ ! -f "$INDEX_FILE" ]; then
+        echo ""
+        return
+    fi
+    
+    python3 -c "import json; print(json.load(open('$INDEX_FILE')).get('pm_agent', ''))" 2>/dev/null || echo ""
+}
+
+kugetsu_check_status() {
+    if [ ! -f "$INDEX_FILE" ]; then
+        echo "kugetsu_not_initialized"
+        return
+    fi
+    
+    if ! grep -q '"pm_agent"' "$INDEX_FILE"; then
+        echo "pm_agent_missing"
+        return
+    fi
+    
+    PM_AGENT=$(kugetsu_get_pm_session)
+    if [ -z "$PM_AGENT" ] || [ "$PM_AGENT" = "null" ]; then
+        echo "pm_agent_missing"
+        return
+    fi
+    
+    echo "ok"
+}
+
+kugetsu_delegate_to_pm() {
+    local task="${1:-}"
+    
+    if [ -z "$task" ]; then
+        echo "Error: task is required"
+        return 1
+    fi
+    
+    local pm_session=$(kugetsu_get_pm_session)
+    if [ -z "$pm_session" ] || [ "$pm_session" = "null" ]; then
+        echo "Error: PM agent session not found. Run 'kugetsu init' first."
+        return 1
+    fi
+    
+    opencode run --continue --session "$pm_session" "$task" 2>&1
+}
+
+kugetsu_list_sessions() {
+    if command -v kugetsu &> /dev/null; then
+        kugetsu list 2>&1
+    else
+        echo "kugetsu command not found"
+        return 1
+    fi
+}
+
+kugetsu_create_dev_session() {
+    local issue_ref="${1:-}"
+    local task="${2:-}"
+    
+    if [ -z "$issue_ref" ] || [ -z "$task" ]; then
+        echo "Error: issue_ref and task are required"
+        return 1
+    fi
+    
+    if ! command -v kugetsu &> /dev/null; then
+        echo "Error: kugetsu command not found"
+        return 1
+    fi
+    
+    kugetsu start "$issue_ref" "$task" 2>&1
+}
+
+kugetsu_continue_dev_session() {
+    local issue_ref="${1:-}"
+    local update="${2:-}"
+    
+    if [ -z "$issue_ref" ] || [ -z "$update" ]; then
+        echo "Error: issue_ref and update are required"
+        return 1
+    fi
+    
+    if ! command -v kugetsu &> /dev/null; then
+        echo "Error: kugetsu command not found"
+        return 1
+    fi
+    
+    kugetsu continue "$issue_ref" "$update" 2>&1
+}
+
+# Main entry point for CLI usage
+main() {
+    local command="${1:-}"
+    shift || true
+    
+    case "$command" in
+        get-pm-session)
+            kugetsu_get_pm_session
+            ;;
+        check-status)
+            kugetsu_check_status
+            ;;
+        delegate-to-pm)
+            kugetsu_delegate_to_pm "$@"
+            ;;
+        list-sessions)
+            kugetsu_list_sessions
+            ;;
+        create-dev-session)
+            kugetsu_create_dev_session "$@"
+            ;;
+        continue-dev-session)
+            kugetsu_continue_dev_session "$@"
+            ;;
+        help|--help|-h)
+            cat << 'EOF'
+kugetsu-helpers - Hermes tools for kugetsu
+
+Commands:
+    get-pm-session          Get PM agent session ID
+    check-status             Check kugetsu initialization status
+    delegate-to-pm <task>    Delegate task to PM agent
+    list-sessions            List all kugetsu sessions
+    create-dev-session <ref> <task>  Create dev agent session
+    continue-dev-session <ref> <update>  Continue dev agent session
+
+Usage in Hermes:
+    terminal(command="kugetsu_delegate_to_pm 'fix issue #5'")
+EOF
+            ;;
+        *)
+            echo "Error: Unknown command '$command'"
+            echo "Run 'kugetsu-helpers help' for usage"
+            return 1
+            ;;
+    esac
+}
+
+main "$@"