# TASK 038: Dynamic discovery of Node Guardian / Steward if cache is empty
    if not data.get("guardian_agent") or not data.get("steward_agent"):
        dynamic_agents = await pool.fetch("""
            SELECT id, display_name, kind, public_slug
            FROM agents
            WHERE node_id = $1 
              AND (kind IN ('node_guardian', 'node_steward') OR kind IN ('infra_monitor', 'infra_ops'))
              AND COALESCE(is_archived, false) = false
        """, node_id)
        
        if not data.get("guardian_agent"):
            # Prefer 'node_guardian', fallback to 'infra_monitor'
            guardian_candidates = [a for a in dynamic_agents if a['kind'] == 'node_guardian']
            monitor_candidates = [a for a in dynamic_agents if a['kind'] == 'infra_monitor']
            
            guardian = guardian_candidates[0] if guardian_candidates else (monitor_candidates[0] if monitor_candidates else None)
            
            if guardian:
                data["guardian_agent"] = {
                    "id": guardian["id"],
                    "name": guardian["display_name"],
                    "kind": guardian["kind"],
                    "slug": guardian["public_slug"],
                }

        if not data.get("steward_agent"):
            # Prefer 'node_steward', fallback to 'infra_ops'
            steward_candidates = [a for a in dynamic_agents if a['kind'] == 'node_steward']
            ops_candidates = [a for a in dynamic_agents if a['kind'] == 'infra_ops']
            
            steward = steward_candidates[0] if steward_candidates else (ops_candidates[0] if ops_candidates else None)
            
            if steward:
                data["steward_agent"] = {
                    "id": steward["id"],
                    "name": steward["display_name"],
                    "kind": steward["kind"],
                    "slug": steward["public_slug"],
                }