diff --git a/scripts/build_dingtalk_card_template.py b/scripts/build_dingtalk_card_template.py
index c07c73d33..8508ac0c1 100644
--- a/scripts/build_dingtalk_card_template.py
+++ b/scripts/build_dingtalk_card_template.py
@@ -68,6 +68,210 @@ def markdown_block(node_id, variable='content'):
     }
 
 
+def _dynamic_string_var(variable):
+    return {'type': 'dynamicString', 'content': '', 'i18n': False, 'variable': variable, 'variableType': 'global'}
+
+
+def _dynamic_visible_var(variable):
+    return {
+        'type': 'dynamicVisible',
+        'value': True,
+        'valueType': 'variable',
+        'variable': variable,
+        'variableType': 'global',
+        'condition': {'op': 'and', 'conditions': []},
+    }
+
+
+SELECT_OPTION_LOCALES = (
+    'zh_CN',
+    'zh_TW',
+    'en_US',
+    'ja_JP',
+    'vi_VN',
+    'th_TH',
+    'id_ID',
+    'ne_NP',
+    'ms_MY',
+    'ko_KR',
+    'ru_RU',
+    'es_EA',
+    'tr_TR',
+    'fr_FR',
+    'pt_BR',
+)
+
+
+def _empty_select_option():
+    return {'value': '', 'text': {locale: '' for locale in SELECT_OPTION_LOCALES}}
+
+
+def _select_options_variable():
+    return {
+        'name': 'index_o',
+        'private': False,
+        'type': 'selectOptions',
+        'id': 'index_o',
+        'description': 'Select options',
+        'editorVarType': 'variables',
+        'disabled': False,
+        'schema': [
+            {
+                'id': 'index_o.value',
+                'type': 'string',
+                'name': 'value',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': True,
+                'description': '',
+            },
+            {
+                'id': 'index_o.text',
+                'type': 'object',
+                'name': 'text',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': True,
+                'description': '',
+                'schema': [
+                    {
+                        'id': f'index_o.{locale}',
+                        'type': 'string',
+                        'name': locale,
+                        'private': False,
+                        'editorVarType': 'variables',
+                        'disabled': True,
+                        'description': '',
+                    }
+                    for locale in SELECT_OPTION_LOCALES
+                ],
+            },
+        ],
+    }
+
+
+def input_block(node_id):
+    return {
+        'componentName': 'Input',
+        'id': node_id,
+        'props': {
+            'placeholder': _dynamic_string_var('input_placeholder'),
+            'currentValue': _dynamic_string_var('input_value'),
+            'message': _dynamic_string_var('input_placeholder'),
+            'title': _dynamic_string_var('input_title'),
+            'id': {'type': 'dynamicString', 'content': 'input', 'i18n': False},
+            'params': [
+                {
+                    'type': 'builtIn',
+                    'variable': '',
+                    'value': '',
+                    'name': 'input',
+                    'variableType': 'global',
+                    'id': '__built_in_inputResult__',
+                }
+            ],
+            'visible': _dynamic_visible_var('input_visible'),
+            'status': {
+                'type': 'dynamicSelect',
+                'valueType': 'fixed',
+                'value': 'normal',
+                'variable': '',
+                'variableType': 'global',
+            },
+            'actionType': 'request',
+            'localVarAction': {'type': 'variableValue', 'variableType': 'global', 'variable': ''},
+            'keyOfDynamicObject': {'type': 'dynamicString', 'content': '', 'i18n': False},
+            'inlineMode': False,
+            'textArea': True,
+            'minRows': {
+                'type': 'dynamicNumber',
+                'valueType': 'fixed',
+                'value': 2,
+                'variable': '',
+                'variableType': 'global',
+            },
+            'maxRows': {
+                'type': 'dynamicNumber',
+                'valueType': 'fixed',
+                'value': 6,
+                'variable': '',
+                'variableType': 'global',
+            },
+            'marginLeft': 12,
+            'marginRight': 12,
+            'marginTop': 6,
+            'marginBottom': 6,
+            'margin': 12,
+            'innerOffset': 0,
+        },
+        'title': 'Text input',
+        'hidden': False,
+        'isLocked': False,
+        'condition': True,
+        'conditionGroup': '',
+    }
+
+
+def select_block(node_id):
+    return {
+        'componentName': 'SelectBlock',
+        'id': node_id,
+        'props': {
+            'id': {'type': 'dynamicString', 'content': 'select', 'i18n': False},
+            'placeholder': _dynamic_string_var('select_placeholder'),
+            'currentIndex': {
+                'type': 'dynamicNumber',
+                'valueType': 'variable',
+                'value': -1,
+                'variable': 'select_index',
+                'variableType': 'global',
+            },
+            'options': {
+                'type': 'dynamicSelectOptions',
+                'valueType': 'variable',
+                'value': [],
+                'variable': 'index_o',
+                'variableType': 'global',
+            },
+            'optionLabelMaxLines': 3,
+            'params': [
+                {
+                    'type': 'builtIn',
+                    'variable': '',
+                    'value': '{"index": ${index}, "value": "${value}"}',
+                    'name': 'select',
+                    'variableType': 'global',
+                    'id': '__built_in_selectResult__',
+                }
+            ],
+            'actionType': 'request',
+            'localVarAction': {'type': 'variableValue', 'variableType': 'global', 'variable': ''},
+            'keyOfDynamicObject': {'type': 'dynamicString', 'content': '', 'i18n': False},
+            'status': {
+                'type': 'dynamicSelect',
+                'valueType': 'fixed',
+                'value': 'normal',
+                'variable': '',
+                'variableType': 'global',
+            },
+            'visible': _dynamic_visible_var('select_visible'),
+            'marginLeft': 12,
+            'marginRight': 12,
+            'marginTop': 6,
+            'marginBottom': 6,
+            'pullOptionsWhileOpen': False,
+            'pullOptionsRequestParams': [],
+            'margin': 12,
+            'innerOffset': 0,
+        },
+        'title': 'Select',
+        'hidden': False,
+        'isLocked': False,
+        'condition': True,
+        'conditionGroup': '',
+    }
+
+
 def text_block(
     node_id,
     text,
@@ -280,6 +484,8 @@ def build_editor_data():
         'ButtonGroup',
         'MarkdownBlock',
         'Avatar',
+        'Input',
+        'SelectBlock',
     ]
     components_map = [
         {
@@ -396,6 +602,8 @@ def build_editor_data():
                 'conditionGroup': '',
                 'children': [
                     avatar('node_avatar', name='LangBot'),
+                    input_block('node_input'),
+                    select_block('node_select'),
                     markdown_block('node_text_content', variable='content'),
                     button_group('node_btn_group'),
                 ],
@@ -716,6 +924,15 @@ def build_editor_data():
             'cardData': {
                 'flowStatus': 3,
                 'content': '请审核以下报销申请：\n\n- 申请人：张三\n- 金额：¥1,200\n- 类别：差旅',
+                'input_visible': '',
+                'input_title': '',
+                'input_placeholder': '',
+                'input_value': '',
+                'select_visible': '',
+                'select_placeholder': '',
+                'index_o': [_empty_select_option()],
+                'select_options': [],
+                'select_index': -1,
                 'btns': [
                     {
                         'text': '通过',
@@ -783,6 +1000,79 @@ def build_editor_data():
                 'editorVarType': 'variables',
                 'disabled': False,
             },
+            {
+                'id': 'input_visible',
+                'type': 'string',
+                'name': 'input_visible',
+                'description': 'Whether to show the text input component',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'input_title',
+                'type': 'string',
+                'name': 'input_title',
+                'description': 'Text input title',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'input_placeholder',
+                'type': 'string',
+                'name': 'input_placeholder',
+                'description': 'Text input placeholder',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'input_value',
+                'type': 'string',
+                'name': 'input_value',
+                'description': 'Text input current value',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'select_visible',
+                'type': 'string',
+                'name': 'select_visible',
+                'description': 'Whether to show the select component',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'select_placeholder',
+                'type': 'string',
+                'name': 'select_placeholder',
+                'description': 'Select placeholder',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            _select_options_variable(),
+            {
+                'id': 'select_options',
+                'type': 'array',
+                'name': 'select_options',
+                'description': 'Legacy select options',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
+            {
+                'id': 'select_index',
+                'type': 'number',
+                'name': 'select_index',
+                'description': 'Current select index',
+                'private': False,
+                'editorVarType': 'variables',
+                'disabled': False,
+            },
             btns_var,
         ],
         'formList': [],
diff --git a/src/langbot/libs/qq_official_api/api.py b/src/langbot/libs/qq_official_api/api.py
index 7e2b8bcd0..69ab414a8 100644
--- a/src/langbot/libs/qq_official_api/api.py
+++ b/src/langbot/libs/qq_official_api/api.py
@@ -12,6 +12,78 @@ import traceback
 from cryptography.hazmat.primitives.asymmetric import ed25519
 
 
+QQ_SELECT_ACTION_PREFIX = '__langbot_select__:'
+
+
+def get_select_field_options(form_data: dict) -> tuple[str, list[str]]:
+    """Return the active select field name and its display/submission values."""
+    field_name = str(form_data.get('_current_input_field') or '').strip()
+    if not field_name:
+        return '', []
+
+    field = next(
+        (
+            item
+            for item in form_data.get('input_defs') or []
+            if str(item.get('output_variable_name') or '').strip() == field_name
+        ),
+        None,
+    )
+    if not field or str(field.get('type') or '').strip().lower() != 'select':
+        return '', []
+
+    source = field.get('option_source') or {}
+    source_value = source.get('value') if isinstance(source, dict) else None
+    if isinstance(source_value, list):
+        return field_name, [str(item) for item in source_value]
+    if isinstance(source_value, str):
+        return field_name, [part.strip() for part in source_value.splitlines() if part.strip()]
+
+    options = field.get('options')
+    if not isinstance(options, list):
+        return field_name, []
+    values = []
+    for item in options:
+        if isinstance(item, dict):
+            values.append(str(item.get('label') or item.get('value') or ''))
+        else:
+            values.append(str(item))
+    return field_name, [value for value in values if value]
+
+
+def build_keyboard_from_select_field(form_data: dict, *, buttons_per_row: int | None = None) -> dict:
+    """Build callback buttons for the currently active Dify select field."""
+    _, options = get_select_field_options(form_data)
+    visible_options = options[:25]
+    if buttons_per_row is None:
+        # Keep small choices readable while fitting up to QQ's 5x5 limit.
+        buttons_per_row = min(5, max(2, (len(visible_options) + 4) // 5))
+    selection_actions = [
+        {
+            'id': f'{QQ_SELECT_ACTION_PREFIX}{idx}',
+            'title': option,
+            'button_style': 'secondary',
+        }
+        for idx, option in enumerate(visible_options)
+    ]
+    return build_keyboard_from_form({'actions': selection_actions}, buttons_per_row=buttons_per_row)
+
+
+def resolve_select_button_action(form_data: dict, action_id: str) -> tuple[str, str] | None:
+    """Resolve a select-button callback to ``(field_name, option_value)``."""
+    if not action_id.startswith(QQ_SELECT_ACTION_PREFIX):
+        return None
+    try:
+        option_index = int(action_id[len(QQ_SELECT_ACTION_PREFIX) :])
+    except ValueError:
+        return None
+
+    field_name, options = get_select_field_options(form_data)
+    if not field_name or option_index < 0 or option_index >= len(options) or option_index >= 25:
+        return None
+    return field_name, options[option_index]
+
+
 def build_keyboard_from_form(form_data: dict, *, buttons_per_row: int = 2) -> dict:
     """Build a QQ keyboard JSON payload from a Dify human-input form_data.
 
diff --git a/src/langbot/pkg/platform/sources/dingtalk.py b/src/langbot/pkg/platform/sources/dingtalk.py
index 09e52c6a5..943cc46a7 100644
--- a/src/langbot/pkg/platform/sources/dingtalk.py
+++ b/src/langbot/pkg/platform/sources/dingtalk.py
@@ -1203,6 +1203,11 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         if not raw_action_id:
             await self.logger.warning(f'DingTalk: card action with no action_id, payload={payload}')
             return
+        if raw_action_id not in known_action_ids:
+            await self.logger.warning(
+                f'DingTalk: card action_id={raw_action_id!r} is not present on out_track_id={out_track_id}'
+            )
+            return
 
         action_id = raw_action_id
         action_title = raw_action_id
@@ -1217,7 +1222,17 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             else provider_session.LauncherTypes.PERSON
         )
         launcher_id = state.get('launcher_id', '')
-        sender_user_id = state.get('sender_user_id') or payload.get('user_id') or launcher_id
+        initiator_user_id = str(state.get('sender_user_id') or '')
+        actor_user_id = str(payload.get('user_id') or initiator_user_id or launcher_id)
+        if (
+            launcher_type == provider_session.LauncherTypes.PERSON
+            and initiator_user_id
+            and actor_user_id != initiator_user_id
+        ):
+            await self.logger.warning(
+                f'DingTalk: user {actor_user_id} cannot act on private form created for {initiator_user_id}'
+            )
+            return
 
         form_action_data = {
             'form_token': state.get('form_token', ''),
@@ -1234,7 +1249,7 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         if launcher_type == provider_session.LauncherTypes.GROUP:
             synthetic_event = platform_events.GroupMessage(
                 sender=platform_entities.GroupMember(
-                    id=sender_user_id,
+                    id=actor_user_id,
                     member_name='',
                     permission=platform_entities.Permission.Member,
                     group=platform_entities.Group(
@@ -1251,7 +1266,7 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         else:
             synthetic_event = platform_events.FriendMessage(
                 sender=platform_entities.Friend(
-                    id=sender_user_id,
+                    id=actor_user_id,
                     nickname='',
                     remark='',
                 ),
@@ -1273,13 +1288,14 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 self.ap.logger.info(
                     f'DingTalk _on_card_action enqueuing form action: action_id={action_id!r} '
                     f'action_title={action_title!r} launcher_type={launcher_type.value} '
-                    f'launcher_id={launcher_id} bot_uuid={bot_uuid} pipeline_uuid={pipeline_uuid}'
+                    f'launcher_id={launcher_id} actor_user_id={actor_user_id} '
+                    f'bot_uuid={bot_uuid} pipeline_uuid={pipeline_uuid}'
                 )
                 await self.ap.query_pool.add_query(
                     bot_uuid=bot_uuid,
                     launcher_type=launcher_type,
                     launcher_id=launcher_id,
-                    sender_id=sender_user_id,
+                    sender_id=actor_user_id,
                     message_event=synthetic_event,
                     message_chain=message_chain,
                     adapter=self,
@@ -1336,7 +1352,17 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             else provider_session.LauncherTypes.PERSON
         )
         launcher_id = state.get('launcher_id', '')
-        sender_user_id = state.get('sender_user_id') or payload.get('user_id') or launcher_id
+        initiator_user_id = str(state.get('sender_user_id') or '')
+        actor_user_id = str(payload.get('user_id') or initiator_user_id or launcher_id)
+        if (
+            launcher_type == provider_session.LauncherTypes.PERSON
+            and initiator_user_id
+            and actor_user_id != initiator_user_id
+        ):
+            await self.logger.warning(
+                f'DingTalk: user {actor_user_id} cannot update private form created for {initiator_user_id}'
+            )
+            return
         form_action_data = {
             'form_token': state.get('form_token', ''),
             'workflow_run_id': state.get('workflow_run_id', ''),
@@ -1353,7 +1379,7 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         if launcher_type == provider_session.LauncherTypes.GROUP:
             synthetic_event = platform_events.GroupMessage(
                 sender=platform_entities.GroupMember(
-                    id=sender_user_id,
+                    id=actor_user_id,
                     member_name='',
                     permission=platform_entities.Permission.Member,
                     group=platform_entities.Group(
@@ -1370,7 +1396,7 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         else:
             synthetic_event = platform_events.FriendMessage(
                 sender=platform_entities.Friend(
-                    id=sender_user_id,
+                    id=actor_user_id,
                     nickname='',
                     remark='',
                 ),
@@ -1394,7 +1420,7 @@ class DingTalkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 bot_uuid=bot_uuid,
                 launcher_type=launcher_type,
                 launcher_id=launcher_id,
-                sender_id=sender_user_id,
+                sender_id=actor_user_id,
                 message_event=synthetic_event,
                 message_chain=message_chain,
                 adapter=self,
diff --git a/src/langbot/pkg/platform/sources/discord.py b/src/langbot/pkg/platform/sources/discord.py
index 0b22067c5..9613e9bcc 100644
--- a/src/langbot/pkg/platform/sources/discord.py
+++ b/src/langbot/pkg/platform/sources/discord.py
@@ -1453,7 +1453,7 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             # Already responded somehow — proceed regardless.
             pass
 
-        pending = self._pending_forms.pop(session_key, None)
+        pending = self._pending_forms.get(session_key)
         if not pending:
             if self.ap is not None:
                 self.ap.logger.warning(
@@ -1462,24 +1462,33 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             await self._lock_view_message(interaction, view, action_title, stale=True)
             return
 
-        # Lock the buttons in place: disable everything, mark chosen one.
-        await self._lock_view_message(interaction, view, action_title)
-
         form_data: dict = pending.get('form_data') or {}
         guild_id = pending.get('guild_id', '')
         channel_id = pending.get('channel_id', '')
-        sender_id = pending.get('sender_id', '')
+        initiator_id = str(pending.get('sender_id', '') or '')
+        actor_id = str(interaction.user.id) if interaction.user is not None else initiator_id
+        if not guild_id and initiator_id and actor_id != initiator_id:
+            if self.ap is not None:
+                self.ap.logger.warning(
+                    f'Discord: user {actor_id} cannot act on private form created for {initiator_id}'
+                )
+            await self._lock_view_message(interaction, view, action_title, stale=True)
+            return
 
-        # In group context the launcher is the CHANNEL (not the user who
-        # clicked) — matches how the original message was routed through
-        # the pipeline. Using the clicker's user id would mismatch the
-        # Dify session and produce "Workflow run not found".
+        self._pending_forms.pop(session_key, None)
+
+        # Lock the buttons in place: disable everything, mark chosen one.
+        await self._lock_view_message(interaction, view, action_title)
+
+        # In group context the launcher remains the channel so Dify resumes
+        # the original group session. The synthetic sender is still the real
+        # clicker, preserving actor identity for auditing and routing rules.
         if guild_id:
             launcher_type = provider_session.LauncherTypes.GROUP
             launcher_id = channel_id
         else:
             launcher_type = provider_session.LauncherTypes.PERSON
-            launcher_id = sender_id or str(interaction.user.id)
+            launcher_id = initiator_id or actor_id
 
         form_action_data = {
             'form_token': form_data.get('form_token', ''),
@@ -1500,7 +1509,7 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         if launcher_type == provider_session.LauncherTypes.GROUP:
             synthetic_event: platform_events.MessageEvent = platform_events.GroupMessage(
                 sender=platform_entities.GroupMember(
-                    id=sender_id,
+                    id=actor_id,
                     member_name=interaction.user.display_name if interaction.user else '',
                     permission='MEMBER',
                     group=platform_entities.Group(
@@ -1517,7 +1526,7 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         else:
             synthetic_event = platform_events.FriendMessage(
                 sender=platform_entities.Friend(
-                    id=sender_id,
+                    id=actor_id,
                     nickname=interaction.user.display_name if interaction.user else '',
                     remark='',
                 ),
@@ -1553,7 +1562,7 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 bot_uuid=bot_uuid,
                 launcher_type=launcher_type,
                 launcher_id=launcher_id,
-                sender_id=sender_id,
+                sender_id=actor_id,
                 message_event=synthetic_event,
                 message_chain=message_chain,
                 adapter=self,
@@ -1565,7 +1574,8 @@ class DiscordAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             )
             if self.ap is not None:
                 self.ap.logger.info(
-                    f'Discord: button-click query enqueued action_id={action_id!r} session={session_key}'
+                    f'Discord: button-click query enqueued action_id={action_id!r} '
+                    f'session={session_key} actor_id={actor_id}'
                 )
         except Exception:
             if self.ap is not None:
diff --git a/src/langbot/pkg/platform/sources/qqofficial.py b/src/langbot/pkg/platform/sources/qqofficial.py
index e9f07af5b..db823eef7 100644
--- a/src/langbot/pkg/platform/sources/qqofficial.py
+++ b/src/langbot/pkg/platform/sources/qqofficial.py
@@ -11,7 +11,13 @@ import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platf
 import langbot_plugin.api.entities.builtin.platform.message as platform_message
 import langbot_plugin.api.entities.builtin.platform.events as platform_events
 import langbot_plugin.api.entities.builtin.platform.entities as platform_entities
-from langbot.libs.qq_official_api.api import QQOfficialClient, build_keyboard_from_form
+from langbot.libs.qq_official_api.api import (
+    QQ_SELECT_ACTION_PREFIX,
+    QQOfficialClient,
+    build_keyboard_from_form,
+    build_keyboard_from_select_field,
+    resolve_select_button_action,
+)
 from langbot.libs.qq_official_api.qqofficialevent import QQOfficialEvent
 from ...utils import image
 from ..logger import EventLogger
@@ -840,7 +846,8 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
         parts.append('请点击下方按钮选择：')
         markdown_content = '\n\n'.join(parts)
 
-        if is_field_step:
+        keyboard = build_keyboard_from_select_field(form_data) if is_field_step else None
+        if is_field_step and not keyboard.get('content', {}).get('rows'):
             field_parts = parts[:-1] if len(parts) > 1 else parts
             text_msg = platform_message.MessageChain([platform_message.Plain(text='\n\n'.join(field_parts))])
             try:
@@ -874,7 +881,8 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
             )
             return
 
-        keyboard = build_keyboard_from_form(form_data, buttons_per_row=2)
+        if keyboard is None:
+            keyboard = build_keyboard_from_form(form_data, buttons_per_row=2)
         if not keyboard.get('content', {}).get('rows'):
             # No actions to render — fall back to plain text.
             text_msg = platform_message.MessageChain([platform_message.Plain(text=markdown_content)])
@@ -1018,7 +1026,7 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
         session_key = f'{target_type}_{target_id}'
 
         self._prune_pending_forms()
-        pending = self._pending_forms.pop(session_key, None)
+        pending = self._pending_forms.get(session_key)
         if not pending:
             await self.logger.warning(
                 f'QQ Official: no pending form for session {session_key}; click ignored (action_id={action_id!r})'
@@ -1046,13 +1054,27 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
 
         form_data: dict = pending.get('form_data') or {}
         actions = form_data.get('actions') or []
-        matched = next(
-            (a for a in actions if str(a.get('id', '')) == action_id),
-            None,
-        )
-        action_title = (matched or {}).get('title') or action_id
+        select_choice = resolve_select_button_action(form_data, action_id)
+        if action_id.startswith(QQ_SELECT_ACTION_PREFIX) and select_choice is None:
+            await self.logger.warning(f'QQ Official: invalid select action_id={action_id!r} for {session_key}')
+            return
 
-        sender_id = pending.get('sender_id') or event_data.get('user_openid') or event_data.get('member_openid') or ''
+        matched = None
+        if select_choice is None:
+            matched = next(
+                (a for a in actions if str(a.get('id', '')) == action_id),
+                None,
+            )
+            if matched is None:
+                await self.logger.warning(
+                    f'QQ Official: action_id={action_id!r} is not present on pending form for {session_key}'
+                )
+                return
+        self._pending_forms.pop(session_key, None)
+        action_title = select_choice[1] if select_choice else matched.get('title') or action_id
+
+        initiator_id = str(pending.get('sender_id') or '')
+        actor_id = str(event_data.get('member_openid') or event_data.get('user_openid') or initiator_id)
 
         # Build resume payload matching the shape every other adapter uses
         # (DingTalk / Lark / Telegram / WeCom). The runner's
@@ -1062,24 +1084,28 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
             launcher_id = target_id
         else:
             launcher_type = provider_session.LauncherTypes.PERSON
-            launcher_id = sender_id or target_id
+            launcher_id = target_id
 
         form_action_data = {
             'form_token': form_data.get('form_token', ''),
             'workflow_run_id': form_data.get('workflow_run_id', ''),
-            'action_id': action_id,
+            'action_id': '' if select_choice else action_id,
             'action_title': action_title,
             'node_title': form_data.get('node_title', ''),
             'user': f'{launcher_type.value}_{launcher_id}',
-            'inputs': {},
+            'inputs': {'select': select_choice[1]} if select_choice else {},
         }
+        if select_choice:
+            form_action_data['_current_input_field'] = select_choice[0]
+            form_action_data['_input_progress'] = True
 
-        message_chain = platform_message.MessageChain([platform_message.Plain(text=f'[Form Action: {action_title}]')])
+        event_label = 'Form Select' if select_choice else 'Form Action'
+        message_chain = platform_message.MessageChain([platform_message.Plain(text=f'[{event_label}: {action_title}]')])
 
         if launcher_type == provider_session.LauncherTypes.GROUP:
             synthetic_event: platform_events.MessageEvent = platform_events.GroupMessage(
                 sender=platform_entities.GroupMember(
-                    id=sender_id or launcher_id,
+                    id=actor_id or launcher_id,
                     member_name='',
                     permission='MEMBER',
                     group=platform_entities.Group(
@@ -1096,7 +1122,7 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
         else:
             synthetic_event = platform_events.FriendMessage(
                 sender=platform_entities.Friend(
-                    id=sender_id or launcher_id,
+                    id=actor_id or launcher_id,
                     nickname='',
                     remark='',
                 ),
@@ -1122,7 +1148,7 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
                 bot_uuid=bot_uuid,
                 launcher_type=launcher_type,
                 launcher_id=launcher_id,
-                sender_id=sender_id or launcher_id,
+                sender_id=actor_id or launcher_id,
                 message_event=synthetic_event,
                 message_chain=message_chain,
                 adapter=self,
@@ -1133,7 +1159,8 @@ class QQOfficialAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter
                 },
             )
             await self.logger.info(
-                f'QQ Official: button-click query enqueued action_id={action_id!r} session={session_key}'
+                f'QQ Official: button-click query enqueued action_id={action_id!r} '
+                f'session={session_key} actor_id={actor_id}'
             )
         except Exception:
             await self.logger.error(f'QQ Official: enqueue button-click query failed: {traceback.format_exc()}')
diff --git a/src/langbot/pkg/platform/sources/telegram.py b/src/langbot/pkg/platform/sources/telegram.py
index 135f0127c..afb583674 100644
--- a/src/langbot/pkg/platform/sources/telegram.py
+++ b/src/langbot/pkg/platform/sources/telegram.py
@@ -3,7 +3,7 @@ from __future__ import annotations
 
 import telegram
 import telegram.ext
-from telegram import Update, InlineKeyboardButton, InlineKeyboardMarkup
+from telegram import ForceReply, InlineKeyboardButton, InlineKeyboardMarkup, Update
 from telegram.ext import ApplicationBuilder, ContextTypes, MessageHandler, CallbackQueryHandler, filters
 import telegramify_markdown
 import typing
@@ -20,6 +20,61 @@ import langbot_plugin.api.entities.builtin.platform.entities as platform_entitie
 import langbot_plugin.api.definition.abstract.platform.event_logger as abstract_platform_logger
 
 
+def _telegram_select_field_options(form_data: dict) -> tuple[str, list[str]]:
+    """Return the active select field and its option values."""
+    field_name = str(form_data.get('_current_input_field') or '').strip()
+    if not field_name:
+        return '', []
+    field = next(
+        (
+            item
+            for item in form_data.get('input_defs') or []
+            if str(item.get('output_variable_name') or '').strip() == field_name
+        ),
+        None,
+    )
+    if not field or str(field.get('type') or '').strip().lower() != 'select':
+        return '', []
+
+    source = field.get('option_source') or {}
+    source_value = source.get('value') if isinstance(source, dict) else None
+    if isinstance(source_value, list):
+        return field_name, [str(item) for item in source_value]
+    if isinstance(source_value, str):
+        return field_name, [part.strip() for part in source_value.splitlines() if part.strip()]
+
+    options = field.get('options')
+    if not isinstance(options, list):
+        return field_name, []
+    values = []
+    for item in options:
+        if isinstance(item, dict):
+            values.append(str(item.get('label') or item.get('value') or ''))
+        else:
+            values.append(str(item))
+    return field_name, [value for value in values if value]
+
+
+def _telegram_form_action_from_callback(data: dict) -> dict | None:
+    """Translate compact Telegram callback data into a runner form action."""
+    if 'x' not in data:
+        return {
+            'action_id': str(data.get('action_id') or data.get('a') or ''),
+            'inputs': {},
+        }
+    try:
+        option_index = int(data['x'])
+    except (TypeError, ValueError):
+        return None
+    if option_index < 0:
+        return None
+    return {
+        'action_id': '',
+        'inputs': {'select': str(option_index)},
+        '_input_progress': True,
+    }
+
+
 class TelegramMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
     @staticmethod
     async def yiri2target(message_chain: platform_message.MessageChain, bot: telegram.Bot) -> list[dict]:
@@ -205,7 +260,7 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         typing.Callable[[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], None],
     ] = {}
 
-    _form_action_titles: typing.Dict[str, str] = {}  # action_id -> action_title mapping
+    _form_action_titles: typing.Dict[str, str] = {}  # callback_data -> display title
 
     def __init__(self, config: dict, logger: abstract_platform_logger.AbstractEventLogger):
         async def telegram_callback(update: Update, context: ContextTypes.DEFAULT_TYPE):
@@ -240,11 +295,13 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                     # for Telegram's 64-byte limit). Only w_suffix is sent;
                     # the runner resolves the full run id from _PENDING_FORMS.
                     w_suffix = data.get('w', '')
-                    action_id = data.get('action_id') or data.get('a', '')
                     session_key = data.get('session_key') or data.get('s', '')
-
+                    callback_action = _telegram_form_action_from_callback(data)
+                    if callback_action is None or query.data not in self._form_action_titles:
+                        await self.logger.warning(f'Invalid or stale Telegram form callback: {query.data!r}')
+                        return
                     # Show selected action feedback by editing the original message
-                    action_title = self._form_action_titles.get(action_id, action_id)
+                    action_title = self._form_action_titles[query.data]
                     try:
                         original_text = query.message.text or ''
                         selected_text = f'{original_text}\n\n✅ Selected: {action_title}'
@@ -254,7 +311,7 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                         pass
                     finally:
                         # Clean up the stored title
-                        self._form_action_titles.pop(action_id, None)
+                        self._form_action_titles.pop(query.data, None)
 
                     if session_key.startswith('group_') or session_key.startswith('g:'):
                         launcher_type = provider_session.LauncherTypes.GROUP
@@ -286,13 +343,13 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                         # workflow_run_id is intentionally omitted; the runner
                         # resolves it from w_suffix via _PENDING_FORMS.
                         'w_suffix': w_suffix,
-                        'action_id': action_id,
                         'user': f'{launcher_type.value}_{launcher_id}',
-                        'inputs': {},
+                        **callback_action,
                     }
 
+                    event_label = 'Form Select' if callback_action.get('_input_progress') else 'Form Action'
                     message_chain = platform_message.MessageChain(
-                        [platform_message.Plain(text=f'[Form Action: {action_id}]')]
+                        [platform_message.Plain(text=f'[{event_label}: {action_title}]')]
                     )
 
                     if launcher_type == provider_session.LauncherTypes.GROUP:
@@ -578,7 +635,7 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         form_data: dict,
         edit_message_id: int | None = None,
     ):
-        """Send inline keyboard buttons for Dify human_input_required form actions."""
+        """Send inline keyboard buttons for Dify form fields or actions."""
         actions = form_data.get('actions', [])
         node_title = form_data.get('node_title', '')
         form_content = form_data.get('form_content', '')
@@ -593,48 +650,86 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         else:
             session_key = f'p:{message_source.sender.id}'
 
+        current_field = str(form_data.get('_current_input_field') or '').strip()
+        is_field_step = bool(current_field) and not form_data.get('_action_select_only')
+        select_field, select_options = _telegram_select_field_options(form_data)
+        is_select_field = bool(select_field and select_options)
+        if is_select_field:
+            choices = [(option, {'x': idx}) for idx, option in enumerate(select_options)]
+        elif is_field_step:
+            choices = []
+        else:
+            choices = [(action.get('title', action.get('id', '')), {'a': action.get('id', '')}) for action in actions]
+
         keyboard = []
+        pending_title_mappings: dict[str, str] = {}
         oversized = False
-        for action in actions:
-            action_id = action.get('id', '')
-            action_title = action.get('title', action_id)
-            # Store action_id -> title mapping for displaying selection feedback
-            self._form_action_titles[action_id] = action_title
-            callback_payload = {'f': 1, 'a': action_id, 's': session_key}
+        buttons_per_row = 2 if is_select_field else 1
+        current_row = []
+        for title, choice_data in choices:
+            callback_payload = {'f': 1, **choice_data, 's': session_key}
             if w_suffix:
                 callback_payload['w'] = w_suffix
             callback_data = json.dumps(callback_payload, separators=(',', ':'))
             if len(callback_data.encode('utf-8')) > 64:
                 oversized = True
                 break
-            keyboard.append([InlineKeyboardButton(action_title, callback_data=callback_data)])
+            pending_title_mappings[callback_data] = str(title)
+            current_row.append(InlineKeyboardButton(str(title), callback_data=callback_data))
+            if len(current_row) == buttons_per_row:
+                keyboard.append(current_row)
+                current_row = []
+        if current_row and not oversized:
+            keyboard.append(current_row)
 
         update = message_source.source_platform_object
         chat_id = update.effective_chat.id
         effective_message = update.effective_message
         message_thread_id = getattr(effective_message, 'message_thread_id', None) if effective_message else None
 
-        text_lines = [f'[{node_title}] Please select an action:']
+        if is_select_field:
+            prompt = f'Please select {select_field}:'
+        elif is_field_step:
+            prompt = f'Please reply with a value for {current_field}.'
+        else:
+            prompt = 'Please select an action:'
+        text_lines = [f'[{node_title}] {prompt}']
         if form_content:
             text_lines.insert(0, form_content)
 
         if oversized:
             # callback_data exceeds Telegram's 64-byte limit — fall back to
             # a plain-text numbered list so the user can reply by number.
-            for idx, action in enumerate(actions, start=1):
-                title = action.get('title') or action.get('id') or ''
+            for idx, (title, _) in enumerate(choices, start=1):
                 text_lines.append(f'  {idx}. {title}')
             args = {
                 'chat_id': chat_id,
                 'text': '\n\n'.join(text_lines),
             }
-        else:
+        elif keyboard:
+            self._form_action_titles.update(pending_title_mappings)
             reply_markup = InlineKeyboardMarkup(keyboard)
             args = {
                 'chat_id': chat_id,
                 'text': '\n\n'.join(text_lines),
                 'reply_markup': reply_markup,
             }
+        elif is_field_step:
+            args = {
+                'chat_id': chat_id,
+                'text': '\n\n'.join(text_lines),
+                # Telegram privacy-mode bots receive replies to ForceReply
+                # prompts even when they cannot read ordinary group messages.
+                'reply_markup': ForceReply(
+                    selective=False,
+                    input_field_placeholder=f'Enter {current_field}',
+                ),
+            }
+        else:
+            args = {
+                'chat_id': chat_id,
+                'text': '\n\n'.join(text_lines),
+            }
 
         if message_thread_id:
             args['message_thread_id'] = message_thread_id
@@ -645,8 +740,7 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 'message_id': edit_message_id,
                 'text': args['text'],
             }
-            if 'reply_markup' in args:
-                edit_args['reply_markup'] = args['reply_markup']
+            edit_args['reply_markup'] = args.get('reply_markup')
             try:
                 await self.bot.edit_message_text(**edit_args)
                 return
diff --git a/src/langbot/pkg/provider/runners/difysvapi.py b/src/langbot/pkg/provider/runners/difysvapi.py
index 226bbfaae..d7b365a55 100644
--- a/src/langbot/pkg/provider/runners/difysvapi.py
+++ b/src/langbot/pkg/provider/runners/difysvapi.py
@@ -31,6 +31,18 @@ _PENDING_FORM_DEFAULT_TTL = 30 * 60  # 30 minutes safety cap
 _STREAM_FORM_PLACEHOLDER = '\u200b'
 
 
+def _merge_stream_text(accumulated: str, incoming: typing.Any) -> str:
+    """Merge either a delta chunk or a cumulative stream snapshot."""
+    incoming_text = '' if incoming is None else str(incoming)
+    if not incoming_text:
+        return accumulated
+    if not accumulated:
+        return incoming_text
+    if len(incoming_text) > len(accumulated) and incoming_text.startswith(accumulated):
+        return incoming_text
+    return accumulated + incoming_text
+
+
 def _session_key_from_query(query: pipeline_query.Query) -> str:
     return f'{query.session.launcher_type.value}_{query.session.launcher_id}'
 
@@ -892,9 +904,9 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                     form_action,
                 )
                 return
-            _clear_pending_form(session_key, form_action.get('form_token') or None)
             async for msg in self._submit_workflow_form_blocking(form_action):
                 yield msg
+            _clear_pending_form(session_key, form_action.get('form_token') or None)
             return
 
         cov_id = query.session.using_conversation.uuid or None
@@ -977,7 +989,7 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                         )
             elif mode == 'basic':
                 if chunk['event'] == 'message':
-                    basic_mode_pending_chunk += chunk['answer']
+                    basic_mode_pending_chunk = _merge_stream_text(basic_mode_pending_chunk, chunk['answer'])
                 elif chunk['event'] == 'message_end':
                     content, _ = self._process_thinking_content(basic_mode_pending_chunk)
                     yield provider_message.Message(
@@ -1034,7 +1046,7 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                 continue
 
             if chunk['event'] == 'agent_message' or chunk['event'] == 'message':
-                pending_agent_message += chunk['answer']
+                pending_agent_message = _merge_stream_text(pending_agent_message, chunk['answer'])
             else:
                 if pending_agent_message.strip() != '':
                     pending_agent_message = pending_agent_message.replace('</details>Action:', '</details>')
@@ -1099,6 +1111,9 @@ class DifyServiceAPIRunner(runner.RequestRunner):
         user = form_action['user']
         action_id = form_action.get('action_id', '')
         inputs = form_action.get('inputs', {})
+        pending_content = ''
+        saw_event = False
+        answer_node_seen = False
 
         async for chunk in self.dify_client.workflow_submit(
             form_token=form_token,
@@ -1108,21 +1123,49 @@ class DifyServiceAPIRunner(runner.RequestRunner):
             action=action_id,
             timeout=120,
         ):
+            saw_event = True
             self.ap.logger.debug('dify-workflow-submit-chunk: ' + str(chunk))
+            event = chunk.get('event')
 
-            if chunk['event'] == 'workflow_finished':
-                if chunk['data'].get('error'):
-                    raise errors.DifyAPIError(chunk['data']['error'])
-                content, _ = self._process_thinking_content(chunk['data']['outputs']['summary'])
+            if event == 'error':
+                raise errors.DifyAPIError(chunk.get('message') or 'Dify workflow resume failed')
+
+            if event in ('message', 'agent_message') and not answer_node_seen:
+                pending_content = _merge_stream_text(
+                    pending_content,
+                    self._extract_dify_text_output(chunk.get('answer')),
+                )
+
+            if event == 'text_chunk':
+                pending_content = _merge_stream_text(
+                    pending_content,
+                    self._extract_dify_text_output(chunk.get('data', {}).get('text')),
+                )
+
+            if event == 'node_finished' and chunk.get('data', {}).get('node_type') == 'answer':
+                answer = self._extract_dify_text_output(chunk.get('data', {}).get('outputs', {}).get('answer'))
+                if answer:
+                    # Answer-node output is the complete answer and may duplicate
+                    # preceding message events, so prefer it over the accumulator.
+                    pending_content = answer
+                    answer_node_seen = True
+
+            if event == 'workflow_finished':
+                data = chunk.get('data', {})
+                if data.get('error'):
+                    raise errors.DifyAPIError(data['error'])
+                if not pending_content:
+                    pending_content = self._extract_dify_text_output(data.get('outputs', {}).get('summary'))
+                content, _ = self._process_thinking_content(pending_content)
                 yield provider_message.Message(
                     role='assistant',
                     content=content,
                 )
                 return
 
-            if chunk['event'] == 'workflow_paused':
-                reasons = chunk['data'].get('reasons', [])
-                new_run_id = chunk['data'].get('workflow_run_id', workflow_run_id)
+            if event == 'workflow_paused':
+                reasons = chunk.get('data', {}).get('reasons', [])
+                new_run_id = chunk.get('data', {}).get('workflow_run_id', workflow_run_id)
                 for reason in reasons:
                     if reason.get('TYPE') != 'human_input_required':
                         continue
@@ -1148,6 +1191,12 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                     )
                     return
 
+        if not saw_event:
+            raise errors.DifyAPIError('Dify API did not return any workflow resume events')
+        if pending_content:
+            content, _ = self._process_thinking_content(pending_content)
+            yield provider_message.Message(role='assistant', content=content)
+
     def _resolve_pending_form(self, session_key: str, form_action: dict) -> dict | None:
         """Locate the pending form this action targets.
 
@@ -1350,9 +1399,9 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                     form_action,
                 )
                 return
-            _clear_pending_form(session_key, form_action.get('form_token') or None)
             async for msg in self._submit_workflow_form_blocking(form_action):
                 yield msg
+            _clear_pending_form(session_key, form_action.get('form_token') or None)
             return
 
         if not query.session.using_conversation.uuid:
@@ -1483,9 +1532,9 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                     form_action,
                 )
                 return
-            _clear_pending_form(session_key, form_action.get('form_token') or None)
             async for msg in self._submit_workflow_form(form_action):
                 yield msg
+            _clear_pending_form(session_key, form_action.get('form_token') or None)
             return
 
         cov_id = query.session.using_conversation.uuid or None
@@ -1513,14 +1562,19 @@ class DifyServiceAPIRunner(runner.RequestRunner):
         chunk = None  # 初始化chunk变量，防止在没有响应时引用错误
 
         is_final = False
-        think_start = False
-        think_end = False
         yielded_final = False
         human_input_yielded = False
         pending_form_data = None
 
         remove_think = self.pipeline_config['output'].get('misc', {}).get('remove-think')
 
+        def visible_content(content: str) -> str:
+            if not remove_think:
+                return content
+            if '<think>' in content and '</think>' not in content:
+                return content.split('<think>', 1)[0].rstrip()
+            return self._process_thinking_content(content)[0]
+
         async for chunk in self.dify_client.chat_messages(
             inputs=inputs,
             query=plain_text,
@@ -1539,23 +1593,7 @@ class DifyServiceAPIRunner(runner.RequestRunner):
 
             if chunk['event'] == 'message':
                 message_idx += 1
-                if remove_think:
-                    if '<think>' in chunk['answer'] and not think_start:
-                        think_start = True
-                        continue
-                    if '</think>' in chunk['answer'] and not think_end:
-                        import re
-
-                        content = re.sub(r'^\n</think>', '', chunk['answer'])
-                        basic_mode_pending_chunk += content
-                        think_end = True
-                    elif think_end:
-                        basic_mode_pending_chunk += chunk['answer']
-                    if think_start:
-                        continue
-
-                else:
-                    basic_mode_pending_chunk += chunk['answer']
+                basic_mode_pending_chunk = _merge_stream_text(basic_mode_pending_chunk, chunk['answer'])
 
             if chunk['event'] == 'message_end':
                 is_final = True
@@ -1620,7 +1658,11 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                 and (is_final or message_idx % 8 == 0)
                 and (basic_mode_pending_chunk != '' or is_final)
             ):
-                final_content = basic_mode_pending_chunk if basic_mode_pending_chunk.strip() else ''
+                final_content = visible_content(basic_mode_pending_chunk)
+                if not final_content.strip() and is_final and pending_form_data:
+                    final_content = _STREAM_FORM_PLACEHOLDER
+                if not final_content and not is_final:
+                    continue
                 msg = provider_message.MessageChunk(
                     role='assistant',
                     content=final_content,
@@ -1637,9 +1679,10 @@ class DifyServiceAPIRunner(runner.RequestRunner):
         # workflow_finished event, yield a final chunk so the adapter
         # can update the card and add buttons.
         if human_input_yielded and not yielded_final:
+            final_content = visible_content(basic_mode_pending_chunk)
             msg = provider_message.MessageChunk(
                 role='assistant',
-                content=basic_mode_pending_chunk or '',
+                content=final_content or _STREAM_FORM_PLACEHOLDER,
                 is_final=True,
             )
             msg._form_data = pending_form_data
@@ -1708,15 +1751,15 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                         import re
 
                         content = re.sub(r'^\n</think>', '', chunk['answer'])
-                        pending_agent_message += content
+                        pending_agent_message = _merge_stream_text(pending_agent_message, content)
                         think_end = True
                     elif think_end or not think_start:
-                        pending_agent_message += chunk['answer']
+                        pending_agent_message = _merge_stream_text(pending_agent_message, chunk['answer'])
                     if think_start and not think_end:
                         continue
 
                 else:
-                    pending_agent_message += chunk['answer']
+                    pending_agent_message = _merge_stream_text(pending_agent_message, chunk['answer'])
             elif chunk['event'] == 'message_end':
                 is_final = True
             else:
@@ -1865,11 +1908,11 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                         workflow_contents += content
                         think_end = True
                     elif think_end:
-                        workflow_contents += chunk['data']['text']
+                        workflow_contents = _merge_stream_text(workflow_contents, chunk['data']['text'])
                     if think_start:
                         continue
                 else:
-                    workflow_contents += chunk['data']['text']
+                    workflow_contents = _merge_stream_text(workflow_contents, chunk['data']['text'])
                 if messsage_idx % 8 == 0:
                     yield_this_iteration = True
 
@@ -1890,11 +1933,11 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                             workflow_contents += content
                             think_end = True
                         elif think_end:
-                            workflow_contents += answer
+                            workflow_contents = _merge_stream_text(workflow_contents, answer)
                         if think_start:
                             continue
                     else:
-                        workflow_contents += answer
+                        workflow_contents = _merge_stream_text(workflow_contents, answer)
                     if messsage_idx % 8 == 0:
                         yield_this_iteration = True
 
@@ -1941,10 +1984,10 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                     form_action,
                 )
                 return
-            _clear_pending_form(session_key, form_action.get('form_token') or None)
             # Resume paused workflow via submit endpoint
             async for msg in self._submit_workflow_form(form_action):
                 yield msg
+            _clear_pending_form(session_key, form_action.get('form_token') or None)
             return
 
         if not query.session.using_conversation.uuid:
@@ -2057,12 +2100,12 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                         workflow_contents += content
                         think_end = True
                     elif think_end:
-                        workflow_contents += chunk['data']['text']
+                        workflow_contents = _merge_stream_text(workflow_contents, chunk['data']['text'])
                     if think_start:
                         continue
 
                 else:
-                    workflow_contents += chunk['data']['text']
+                    workflow_contents = _merge_stream_text(workflow_contents, chunk['data']['text'])
 
             if chunk['event'] == 'node_started':
                 if chunk['data']['node_type'] == 'start' or chunk['data']['node_type'] == 'end':
diff --git a/tests/unit_tests/platform/test_dingtalk_adapter.py b/tests/unit_tests/platform/test_dingtalk_adapter.py
index 3eede810b..8551e613a 100644
--- a/tests/unit_tests/platform/test_dingtalk_adapter.py
+++ b/tests/unit_tests/platform/test_dingtalk_adapter.py
@@ -1,6 +1,12 @@
 """Tests for DingTalk adapter helper behavior."""
 
+import asyncio
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
 from langbot.pkg.platform.sources.dingtalk import (
+    DingTalkAdapter,
     _dingtalk_clean_form_content,
     _dingtalk_completed_input_lines,
     _dingtalk_extract_component_inputs,
@@ -102,3 +108,69 @@ def test_dingtalk_clean_form_content_uses_all_input_defs():
     )
 
     assert content == 'Hello'
+
+
+def _build_card_action_adapter() -> DingTalkAdapter:
+    adapter = DingTalkAdapter.model_construct(
+        card_state={
+            'card-1': {
+                'session_key': 'group_group-1',
+                'launcher_type': 'group',
+                'launcher_id': 'group-1',
+                'sender_user_id': 'initiator-1',
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'actions': [{'id': 'approve', 'title': 'Approve'}],
+                'node_title': 'Review',
+                'form_content': 'Please review',
+                'input_defs': [],
+                'inputs': {},
+            }
+        },
+        active_turn_card={},
+        active_turn_text={},
+    )
+    adapter.logger = AsyncMock()
+    adapter.ap = MagicMock()
+    adapter.ap.platform_mgr.bots = []
+    adapter.ap.query_pool.add_query = AsyncMock()
+    return adapter
+
+
+@pytest.mark.asyncio
+async def test_dingtalk_group_card_action_uses_clicker_as_sender():
+    adapter = _build_card_action_adapter()
+
+    with patch.object(DingTalkAdapter, '_mark_card_resolved', new=AsyncMock()) as mark_resolved:
+        await adapter._on_card_action(
+            {
+                'out_track_id': 'card-1',
+                'user_id': 'reviewer-2',
+                'action_id': 'approve',
+                'params': {},
+            }
+        )
+        await asyncio.sleep(0)
+
+    call = adapter.ap.query_pool.add_query.await_args
+    assert call.kwargs['launcher_id'] == 'group-1'
+    assert call.kwargs['sender_id'] == 'reviewer-2'
+    assert call.kwargs['message_event'].sender.id == 'reviewer-2'
+    mark_resolved.assert_awaited_once()
+
+
+@pytest.mark.asyncio
+async def test_dingtalk_unknown_card_action_is_rejected():
+    adapter = _build_card_action_adapter()
+
+    await adapter._on_card_action(
+        {
+            'out_track_id': 'card-1',
+            'user_id': 'reviewer-2',
+            'action_id': 'not-on-card',
+            'params': {},
+        }
+    )
+
+    adapter.ap.query_pool.add_query.assert_not_awaited()
+    adapter.logger.warning.assert_awaited_once()
diff --git a/tests/unit_tests/platform/test_qqofficial_api.py b/tests/unit_tests/platform/test_qqofficial_api.py
new file mode 100644
index 000000000..df63f583b
--- /dev/null
+++ b/tests/unit_tests/platform/test_qqofficial_api.py
@@ -0,0 +1,117 @@
+"""Tests for QQ Official keyboard payload helpers."""
+
+import asyncio
+import time
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+
+from langbot.libs.qq_official_api.api import (
+    QQ_SELECT_ACTION_PREFIX,
+    build_keyboard_from_select_field,
+    get_select_field_options,
+    resolve_select_button_action,
+)
+
+
+def _select_form_data() -> dict:
+    return {
+        '_current_input_field': 'choice',
+        'input_defs': [
+            {
+                'output_variable_name': 'choice',
+                'type': 'select',
+                'option_source': {'type': 'constant', 'value': ['A', 'B', 'C']},
+            }
+        ],
+    }
+
+
+def test_qq_select_field_builds_callback_buttons():
+    keyboard = build_keyboard_from_select_field(_select_form_data(), buttons_per_row=2)
+
+    rows = keyboard['content']['rows']
+    assert [[button['render_data']['label'] for button in row['buttons']] for row in rows] == [
+        ['A', 'B'],
+        ['C'],
+    ]
+    assert rows[0]['buttons'][0]['action']['data'] == f'{QQ_SELECT_ACTION_PREFIX}0'
+    assert rows[0]['buttons'][1]['action']['data'] == f'{QQ_SELECT_ACTION_PREFIX}1'
+
+
+def test_qq_select_button_resolves_field_and_value():
+    form_data = _select_form_data()
+
+    assert get_select_field_options(form_data) == ('choice', ['A', 'B', 'C'])
+    assert resolve_select_button_action(form_data, f'{QQ_SELECT_ACTION_PREFIX}1') == ('choice', 'B')
+    assert resolve_select_button_action(form_data, f'{QQ_SELECT_ACTION_PREFIX}99') is None
+
+
+def test_qq_select_keyboard_fits_twenty_five_options():
+    form_data = _select_form_data()
+    form_data['input_defs'][0]['option_source']['value'] = [f'Option {idx}' for idx in range(25)]
+
+    rows = build_keyboard_from_select_field(form_data)['content']['rows']
+
+    assert len(rows) == 5
+    assert all(len(row['buttons']) == 5 for row in rows)
+
+
+def test_qq_non_select_field_does_not_build_keyboard():
+    form_data = {
+        '_current_input_field': 'comment',
+        'input_defs': [{'output_variable_name': 'comment', 'type': 'paragraph'}],
+    }
+
+    assert build_keyboard_from_select_field(form_data)['content']['rows'] == []
+
+
+@pytest.mark.asyncio
+async def test_qq_select_click_enqueues_input_progress_query():
+    import langbot.pkg.core.app  # noqa: F401
+    from langbot.pkg.platform.sources.qqofficial import QQOfficialAdapter
+
+    adapter = QQOfficialAdapter.model_construct()
+    adapter.logger = AsyncMock()
+    adapter.bot = MagicMock()
+    adapter.bot.ack_interaction = AsyncMock()
+    adapter.ap = MagicMock()
+    adapter.ap.platform_mgr.bots = []
+    adapter.ap.query_pool.add_query = AsyncMock()
+    adapter._pending_forms = {
+        'group_group-1': {
+            'form_data': {
+                **_select_form_data(),
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'node_title': 'Review',
+                'actions': [{'id': 'approve', 'title': 'Approve'}],
+            },
+            'sender_id': 'initiator-1',
+            'posted_at': time.time(),
+        }
+    }
+    adapter._session_event_ids = {}
+    adapter._anchor_msg_seq = {}
+
+    await adapter._handle_interaction_create(
+        {
+            'id': 'interaction-1',
+            'chat_type': 1,
+            'group_openid': 'group-1',
+            'member_openid': 'reviewer-2',
+            'data': {'resolved': {'button_data': f'{QQ_SELECT_ACTION_PREFIX}1'}},
+        },
+        ws_event_id='event-1',
+    )
+    await asyncio.sleep(0)
+
+    call = adapter.ap.query_pool.add_query.await_args
+    form_action = call.kwargs['variables']['_dify_form_action']
+    assert call.kwargs['launcher_id'] == 'group-1'
+    assert call.kwargs['sender_id'] == 'reviewer-2'
+    assert form_action['action_id'] == ''
+    assert form_action['inputs'] == {'select': 'B'}
+    assert form_action['_current_input_field'] == 'choice'
+    assert form_action['_input_progress'] is True
+    adapter.bot.ack_interaction.assert_awaited_once_with('interaction-1', code=0)
diff --git a/tests/unit_tests/platform/test_telegram_adapter.py b/tests/unit_tests/platform/test_telegram_adapter.py
new file mode 100644
index 000000000..247d51b16
--- /dev/null
+++ b/tests/unit_tests/platform/test_telegram_adapter.py
@@ -0,0 +1,120 @@
+"""Tests for Telegram Dify form callback helpers."""
+
+import json
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+from telegram import ForceReply
+
+import langbot_plugin.api.entities.builtin.platform.entities as platform_entities
+import langbot_plugin.api.entities.builtin.platform.events as platform_events
+import langbot_plugin.api.entities.builtin.platform.message as platform_message
+from langbot.pkg.platform.sources.telegram import (
+    TelegramAdapter,
+    _telegram_form_action_from_callback,
+    _telegram_select_field_options,
+)
+
+
+def _select_form_data() -> dict:
+    return {
+        '_current_input_field': 'choice',
+        'input_defs': [
+            {
+                'output_variable_name': 'choice',
+                'type': 'select',
+                'option_source': {'type': 'constant', 'value': ['A', 'B', 'C']},
+            }
+        ],
+    }
+
+
+def test_telegram_select_field_options_are_extracted():
+    assert _telegram_select_field_options(_select_form_data()) == ('choice', ['A', 'B', 'C'])
+
+
+def test_telegram_select_callback_becomes_input_progress():
+    assert _telegram_form_action_from_callback({'f': 1, 'x': 1}) == {
+        'action_id': '',
+        'inputs': {'select': '1'},
+        '_input_progress': True,
+    }
+
+
+def test_telegram_action_callback_remains_final_action():
+    assert _telegram_form_action_from_callback({'f': 1, 'a': 'approve'}) == {
+        'action_id': 'approve',
+        'inputs': {},
+    }
+
+
+def test_telegram_invalid_select_callback_is_rejected():
+    assert _telegram_form_action_from_callback({'f': 1, 'x': -1}) is None
+    assert _telegram_form_action_from_callback({'f': 1, 'x': 'invalid'}) is None
+
+
+@pytest.mark.asyncio
+async def test_telegram_select_field_sends_two_column_inline_keyboard():
+    bot = MagicMock()
+    bot.send_message = AsyncMock()
+    adapter = TelegramAdapter.model_construct(bot=bot, config={}, msg_stream_id={}, seq=1, listeners={})
+    adapter._form_action_titles = {}
+
+    update = MagicMock()
+    update.effective_chat.id = 123
+    update.effective_message.message_thread_id = None
+    event = platform_events.FriendMessage(
+        sender=platform_entities.Friend(id='user-1', nickname='', remark=''),
+        message_chain=platform_message.MessageChain([]),
+        source_platform_object=update,
+    )
+    form_data = {
+        **_select_form_data(),
+        'node_title': 'Review',
+        'form_content': 'Choose one',
+        'workflow_run_id': 'workflow-run-12345678',
+        'actions': [{'id': 'approve', 'title': 'Approve'}],
+    }
+
+    await adapter._send_form_action_buttons(event, form_data)
+
+    args = bot.send_message.await_args.kwargs
+    rows = args['reply_markup'].inline_keyboard
+    assert [[button.text for button in row] for row in rows] == [['A', 'B'], ['C']]
+    callback_data = rows[0][1].callback_data
+    assert len(callback_data.encode('utf-8')) <= 64
+    assert json.loads(callback_data)['x'] == 1
+    assert callback_data in adapter._form_action_titles
+
+
+@pytest.mark.asyncio
+async def test_telegram_text_field_does_not_show_action_buttons():
+    bot = MagicMock()
+    bot.send_message = AsyncMock()
+    adapter = TelegramAdapter.model_construct(bot=bot, config={}, msg_stream_id={}, seq=1, listeners={})
+    adapter._form_action_titles = {}
+
+    update = MagicMock()
+    update.effective_chat.id = 123
+    update.effective_message.message_thread_id = None
+    event = platform_events.FriendMessage(
+        sender=platform_entities.Friend(id='user-1', nickname='', remark=''),
+        message_chain=platform_message.MessageChain([]),
+        source_platform_object=update,
+    )
+    form_data = {
+        '_current_input_field': 'us_input',
+        'input_defs': [{'output_variable_name': 'us_input', 'type': 'paragraph'}],
+        'node_title': '人工介入',
+        'form_content': 'us_input (paragraph): reply "us_input: <value>"',
+        'workflow_run_id': 'workflow-run-12345678',
+        'actions': [{'id': 'yes', 'title': 'yes'}, {'id': 'no', 'title': 'no'}],
+    }
+
+    await adapter._send_form_action_buttons(event, form_data)
+
+    args = bot.send_message.await_args.kwargs
+    assert isinstance(args['reply_markup'], ForceReply)
+    assert args['reply_markup'].selective is False
+    assert 'Please reply with a value for us_input.' in args['text']
+    assert adapter._form_action_titles == {}
diff --git a/tests/unit_tests/provider/runners/test_difysvapi_runner.py b/tests/unit_tests/provider/runners/test_difysvapi_runner.py
index 8db124386..80e77b563 100644
--- a/tests/unit_tests/provider/runners/test_difysvapi_runner.py
+++ b/tests/unit_tests/provider/runners/test_difysvapi_runner.py
@@ -128,7 +128,7 @@ class TestDifyRunnerConfigValidation:
 
         mock_app = MagicMock()
 
-        for app_type in ['chat', 'agent', 'workflow']:
+        for app_type in ['chat', 'agent', 'workflow', 'chatflow']:
             pipeline_config = {
                 'ai': {
                     'dify-service-api': {
@@ -669,3 +669,205 @@ class TestDifyHumanInputForms:
         assert second['_partial'] is True
         assert second['inputs'] == {'comment': 'looks good', 'choice': 'B'}
         assert second['_form_data']['_action_select_only'] is True
+
+    @pytest.mark.asyncio
+    async def test_blocking_resume_uses_chatflow_answer_node_output(self):
+        runner = self._create_runner()
+
+        async def workflow_submit(**kwargs):
+            del kwargs
+            yield {'event': 'message', 'answer': 'partial'}
+            yield {
+                'event': 'node_finished',
+                'data': {
+                    'node_type': 'answer',
+                    'outputs': {'answer': {'content': 'Final chatflow answer'}},
+                },
+            }
+            yield {'event': 'workflow_finished', 'data': {'error': None, 'outputs': {}}}
+
+        runner.dify_client.workflow_submit = workflow_submit
+
+        messages = [
+            message
+            async for message in runner._submit_workflow_form_blocking(
+                {
+                    'form_token': 'token-1',
+                    'workflow_run_id': 'run-1',
+                    'user': 'person_user-1',
+                    'action_id': 'yes',
+                    'inputs': {},
+                }
+            )
+        ]
+
+        assert [message.content for message in messages] == ['Final chatflow answer']
+
+    @pytest.mark.asyncio
+    async def test_successful_blocking_resume_clears_pending_form(self):
+        from langbot.pkg.provider.runners import difysvapi
+
+        runner = self._create_runner()
+        session_key = 'person_user-1'
+        difysvapi._PENDING_FORMS.clear()
+        difysvapi._set_pending_form(
+            session_key,
+            {
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'actions': [{'id': 'yes', 'title': 'Yes'}],
+                'inputs': {},
+                'user': session_key,
+            },
+        )
+
+        async def workflow_submit(**kwargs):
+            del kwargs
+            yield {
+                'event': 'workflow_finished',
+                'data': {'error': None, 'outputs': {'summary': 'Completed'}},
+            }
+
+        runner.dify_client.workflow_submit = workflow_submit
+        query = MagicMock()
+        query.session.launcher_type.value = 'person'
+        query.session.launcher_id = 'user-1'
+        query.variables = {
+            '_dify_form_action': {
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'action_id': 'yes',
+                'user': session_key,
+                'inputs': {},
+            }
+        }
+
+        messages = [message async for message in runner._workflow_messages(query)]
+
+        assert [message.content for message in messages] == ['Completed']
+        assert difysvapi._get_pending_form_by_token(session_key, 'token-1') is None
+
+    @pytest.mark.asyncio
+    async def test_failed_blocking_resume_keeps_pending_form_for_retry(self):
+        from langbot.libs.dify_service_api.v1.errors import DifyAPIError
+        from langbot.pkg.provider.runners import difysvapi
+
+        runner = self._create_runner()
+        session_key = 'person_user-1'
+        difysvapi._PENDING_FORMS.clear()
+        difysvapi._set_pending_form(
+            session_key,
+            {
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'actions': [{'id': 'yes', 'title': 'Yes'}],
+                'inputs': {},
+                'user': session_key,
+            },
+        )
+
+        async def workflow_submit(**kwargs):
+            del kwargs
+            raise DifyAPIError('temporary failure')
+            yield
+
+        runner.dify_client.workflow_submit = workflow_submit
+        query = MagicMock()
+        query.session.launcher_type.value = 'person'
+        query.session.launcher_id = 'user-1'
+        query.variables = {
+            '_dify_form_action': {
+                'form_token': 'token-1',
+                'workflow_run_id': 'run-1',
+                'action_id': 'yes',
+                'user': session_key,
+                'inputs': {},
+            }
+        }
+
+        with pytest.raises(DifyAPIError, match='temporary failure'):
+            _ = [message async for message in runner._workflow_messages(query)]
+
+        assert difysvapi._get_pending_form_by_token(session_key, 'token-1') is not None
+        difysvapi._PENDING_FORMS.clear()
+
+
+class TestDifyCumulativeStreaming:
+    def _create_runner(self, *, remove_think: bool = False):
+        from langbot.pkg.provider.runners.difysvapi import DifyServiceAPIRunner
+
+        mock_app = MagicMock()
+        mock_app.logger = MagicMock()
+        runner = DifyServiceAPIRunner(
+            mock_app,
+            {
+                'ai': {
+                    'dify-service-api': {
+                        'app-type': 'chat',
+                        'api-key': 'test-key',
+                        'base-url': 'https://api.dify.ai',
+                        'base-prompt': '',
+                    }
+                },
+                'output': {'misc': {'remove-think': remove_think}},
+            },
+        )
+        runner.dify_client = MagicMock()
+        return runner
+
+    @staticmethod
+    def _query():
+        query = MagicMock()
+        query.session.launcher_type.value = 'person'
+        query.session.launcher_id = 'user-1'
+        query.session.using_conversation.uuid = 'conversation-1'
+        query.variables = {}
+        query.user_message.content = 'hello'
+        return query
+
+    def test_merge_stream_text_accepts_deltas_and_snapshots(self):
+        from langbot.pkg.provider.runners.difysvapi import _merge_stream_text
+
+        assert _merge_stream_text('Hello', ' world') == 'Hello world'
+        assert _merge_stream_text('<think>one', '<think>one two') == '<think>one two'
+        assert _merge_stream_text('ha', 'ha') == 'haha'
+
+    @pytest.mark.asyncio
+    async def test_chat_stream_deduplicates_cumulative_snapshots(self):
+        runner = self._create_runner()
+        snapshots = [f'<think>Reasoning{"." * idx}' for idx in range(1, 10)]
+        snapshots.append(f'{snapshots[-1]}</think>\nHello!')
+
+        async def chat_messages(**kwargs):
+            del kwargs
+            for snapshot in snapshots:
+                yield {'event': 'message', 'answer': snapshot, 'conversation_id': 'conversation-2'}
+            yield {'event': 'message_end', 'conversation_id': 'conversation-2'}
+
+        runner.dify_client.chat_messages = chat_messages
+
+        chunks = [chunk async for chunk in runner._chat_messages_chunk(self._query())]
+
+        assert chunks[-1].content == snapshots[-1]
+        assert chunks[-1].content.count('<think>') == 1
+
+    @pytest.mark.asyncio
+    async def test_chat_stream_removes_think_from_cumulative_snapshots(self):
+        runner = self._create_runner(remove_think=True)
+
+        async def chat_messages(**kwargs):
+            del kwargs
+            yield {'event': 'message', 'answer': '<think>Reasoning', 'conversation_id': 'conversation-2'}
+            yield {
+                'event': 'message',
+                'answer': '<think>Reasoning complete</think>\nHello!',
+                'conversation_id': 'conversation-2',
+            }
+            yield {'event': 'message_end', 'conversation_id': 'conversation-2'}
+
+        runner.dify_client.chat_messages = chat_messages
+
+        chunks = [chunk async for chunk in runner._chat_messages_chunk(self._query())]
+
+        assert chunks[-1].content == 'Hello!'
+        assert all('<think>' not in chunk.content for chunk in chunks if isinstance(chunk.content, str))