Update chat_template.jinja

chat_template.jinja

@@ -1,44 +1,10 @@
-{%- set template_version = "qwen3.8-safe-v3.1" %}
-{#- -------------------------------------------------------------------------
-    Whitespace contract: every tag opener in this file carries a leading minus,
-    so it strips the whitespace and newlines that precede it. All emitted text
-    comes from string literals, which makes the rendered prompt byte-exact and
-    free of incidental newlines. Comment tags need the minus just as much as
-    block tags do; a plain comment tag breaks the strip chain and leaks the
-    surrounding indentation into the prompt.
-    ------------------------------------------------------------------------- -#}
-{#- The message list has to exist before anything else can inspect it. -#}
-{%- if not messages %}
-    {{- raise_exception('No messages provided.') }}
-{%- endif %}
-{#- -------------------------------------------------------------------------
-    Configuration
-    ------------------------------------------------------------------------- -#}
-{%- set _requested_tool_format =
-    tool_call_format if tool_call_format is defined else 'xml'
-%}
-{%- if _requested_tool_format not in ('auto', 'xml', 'json') %}
-    {{- raise_exception(
-        'Unexpected tool_call_format ' ~ _requested_tool_format ~
-        '. Supported values are xml (default), auto, and json.'
-    ) }}
-{%- endif %}
+{%- set template_version = "darkc0de_xortron_JAX_testing.v14" %}
+{%- set _tool_format = tool_call_format if tool_call_format is defined else 'xml' %}
+{%- set image_count = namespace(value=0) %}
+{%- set video_count = namespace(value=0) %}
 {%- set add_vision_id = add_vision_id if add_vision_id is defined else false %}
 {%- set enable_thinking = enable_thinking if enable_thinking is defined else true %}
-{%- set auto_disable_thinking_with_tools =
-    auto_disable_thinking_with_tools
-    if auto_disable_thinking_with_tools is defined
-    else false
-%}
-{%- if preserve_reasoning is defined
-       and preserve_reasoning is not none
-       and preserve_thinking is defined
-       and preserve_thinking is not none
-       and preserve_reasoning != preserve_thinking %}
-    {{- raise_exception(
-        'preserve_reasoning and preserve_thinking were both provided with conflicting values.'
-    ) }}
-{%- endif %}
+{%- set auto_disable_thinking_with_tools = auto_disable_thinking_with_tools if auto_disable_thinking_with_tools is defined else false %}
 {%- if preserve_reasoning is defined and preserve_reasoning is not none %}
     {%- set _preserve_thinking = preserve_reasoning %}
 {%- elif preserve_thinking is defined and preserve_thinking is not none %}
@@ -46,200 +12,115 @@
 {%- else %}
     {%- set _preserve_thinking = true %}
 {%- endif %}
-{%- set max_tool_arg_chars =
-    max_tool_arg_chars if max_tool_arg_chars is defined else 0
-%}
-{%- set max_tool_response_chars =
-    max_tool_response_chars if max_tool_response_chars is defined else 0
-%}
-{%- if max_tool_arg_chars is not number or max_tool_arg_chars < 0 %}
-    {{- raise_exception('max_tool_arg_chars must be a non-negative number.') }}
-{%- endif %}
-{%- if max_tool_response_chars is not number or max_tool_response_chars < 0 %}
-    {{- raise_exception('max_tool_response_chars must be a non-negative number.') }}
-{%- endif %}
-{%- if tools is defined and tools is not none and tools %}
-    {%- if tools is string or tools is mapping or tools is not iterable %}
-        {{- raise_exception('tools must be an iterable list of tool definitions.') }}
-    {%- endif %}
-    {%- set _has_tools = true %}
+{%- set max_tool_arg_chars = max_tool_arg_chars if max_tool_arg_chars is defined else 0 %}
+{%- set max_tool_response_chars = max_tool_response_chars if max_tool_response_chars is defined else 0 %}
+{%- set _default_reasoning_effort = 'medium' %}
+{%- set _has_tools = (tools is defined and tools and tools is iterable and tools is not mapping) %}
+{%- set _effort_raw = (reasoning_effort | string | lower) if reasoning_effort is defined and reasoning_effort is not none else _default_reasoning_effort %}
+{%- set _initial_thinking = enable_thinking %}
+{%- if _effort_raw in ('none', 'off') %}
+    {%- set _initial_thinking = false %}
+    {%- set _initial_effort = 'medium' %}
+{%- elif _effort_raw in ('minimal', 'low') %}
+    {%- set _initial_effort = 'low' %}
+{%- elif _effort_raw in ('high', 'xhigh', 'max', 'ultracode', 'extreme') %}
+    {%- set _initial_effort = 'xhigh' %}
 {%- else %}
-    {%- set _has_tools = false %}
+    {%- set _initial_effort = 'medium' %}
 {%- endif %}
-{#- -------------------------------------------------------------------------
-    Resolve the tool-call wire format.
-
-    OpenAI-compatible servers hand assistant tool calls back with
-    `function.arguments` as a JSON *string*, not a mapping. The XML parameter
-    form needs the individual key/value pairs, and a chat template cannot
-    decode a JSON string: the standard chat-template environment provides
-    `tojson` but no inverse, and no codepoint-to-character primitive, so a
-    hand-rolled scanner could not decode \uXXXX escapes correctly. Guessing
-    would silently corrupt tool arguments, which is worse than any error.
-
-    The deployment-safe default is XML, matching Qwen's native tool-call wire
-    format and the qwen3_coder tool parser. A caller can explicitly request
-    tool_call_format='auto' to render the whole prompt in JSON form whenever a
-    historical tool call carries string arguments. That path is lossless,
-    needs no decoding, and keeps the system-prompt instructions and rendered
-    history in one consistent format. Histories whose arguments are all
-    mappings still render as XML, byte-identically to tool_call_format='xml'.
-
-    A caller that uses the default XML mode (or explicitly pins 'xml') still
-    gets a hard error for non-empty string arguments, because that request
-    cannot be honoured faithfully in the native XML parameter representation.
-    ------------------------------------------------------------------------- -#}
-{%- set format_scan = namespace(has_json_string_arguments=false) %}
-{%- for message in messages %}
-    {%- if message.role == 'assistant'
-           and message.tool_calls is defined
-           and message.tool_calls is not none
-           and message.tool_calls
-           and message.tool_calls is not string
-           and message.tool_calls is not mapping
-           and message.tool_calls is iterable %}
-        {%- for tool_call in message.tool_calls %}
-            {%- if tool_call.function is defined
-                   and tool_call.function is not none %}
-                {%- set _tc = tool_call.function %}
-            {%- else %}
-                {%- set _tc = tool_call %}
-            {%- endif %}
-            {%- if _tc.arguments is defined
-                   and _tc.arguments is not none
-                   and _tc.arguments is string
-                   and _tc.arguments | trim
-                   and _tc.arguments | trim != '{}' %}
-                {%- set format_scan.has_json_string_arguments = true %}
+{%- set ns_state = namespace(thinking=_initial_thinking, effort=_initial_effort) %}
+{%- if auto_disable_thinking_with_tools and _has_tools %}
+    {%- set ns_state.thinking = false %}
+{%- endif %}
+{%- for msg in messages %}
+    {%- if msg.role == 'system' or msg.role == 'developer' or msg.role == 'user' %}
+        {%- if msg.content is string %}
+            {%- if '<|think_off|>' in msg.content %}
+                {%- set ns_state.thinking = false %}
+            {%- elif '<|think_on|>' in msg.content %}
+                {%- set ns_state.thinking = true %}
+            {%- elif '<|think_xhigh|>' in msg.content or '<|think_high|>' in msg.content or '<|think_ultracode|>' in msg.content or '<|think_extreme|>' in msg.content or '<|think_max|>' in msg.content %}
+                {%- set ns_state.thinking = true %}
+                {%- set ns_state.effort = 'xhigh' %}
+            {%- elif '<|think_low|>' in msg.content or '<|think_minimal|>' in msg.content %}
+                {%- set ns_state.thinking = true %}
+                {%- set ns_state.effort = 'low' %}
+            {%- elif '<|think_medium|>' in msg.content %}
+                {%- set ns_state.thinking = true %}
+                {%- set ns_state.effort = 'medium' %}
             {%- endif %}
-        {%- endfor %}
+        {%- elif msg.content is iterable and msg.content is not mapping %}
+            {%- for item in msg.content %}
+                {%- if item is string %}
+                    {%- set _item_text = item %}
+                {%- elif item is mapping and 'text' in item and item.text is string %}
+                    {%- set _item_text = item.text %}
+                {%- else %}
+                    {%- set _item_text = '' %}
+                {%- endif %}
+                {%- if _item_text %}
+                    {%- if '<|think_off|>' in _item_text %}
+                        {%- set ns_state.thinking = false %}
+                    {%- elif '<|think_on|>' in _item_text %}
+                        {%- set ns_state.thinking = true %}
+                    {%- elif '<|think_xhigh|>' in _item_text or '<|think_high|>' in _item_text or '<|think_ultracode|>' in _item_text or '<|think_extreme|>' in _item_text or '<|think_max|>' in _item_text %}
+                        {%- set ns_state.thinking = true %}
+                        {%- set ns_state.effort = 'xhigh' %}
+                    {%- elif '<|think_low|>' in _item_text or '<|think_minimal|>' in _item_text %}
+                        {%- set ns_state.thinking = true %}
+                        {%- set ns_state.effort = 'low' %}
+                    {%- elif '<|think_medium|>' in _item_text %}
+                        {%- set ns_state.thinking = true %}
+                        {%- set ns_state.effort = 'medium' %}
+                    {%- endif %}
+                {%- endif %}
+            {%- endfor %}
+        {%- endif %}
     {%- endif %}
 {%- endfor %}
-{%- if _requested_tool_format == 'auto' %}
-    {%- if format_scan.has_json_string_arguments %}
-        {%- set _tool_format = 'json' %}
-    {%- else %}
-        {%- set _tool_format = 'xml' %}
-    {%- endif %}
-{%- else %}
-    {%- set _tool_format = _requested_tool_format %}
-{%- endif %}
-{%- set _thinking_enabled = enable_thinking %}
-{%- if auto_disable_thinking_with_tools and _has_tools %}
-    {%- set _thinking_enabled = false %}
-{%- endif %}
-{#- Normalize and validate reasoning effort even when thinking is disabled.
-    Explicit null follows the template default; OpenAI-style `minimal` maps to
-    low, while `none` disables thinking for this render. -#}
-{%- if reasoning_effort is undefined or reasoning_effort is none %}
-    {%- set _effort_raw = 'medium' %}
-{%- else %}
-    {%- set _effort_raw = reasoning_effort %}
-{%- endif %}
-{%- if _effort_raw == 'none' %}
-    {%- set _thinking_enabled = false %}
-    {%- set _reasoning_effort = 'xhigh' %}
-{%- elif _effort_raw == 'high' or _effort_raw == 'xhigh' %}
-    {%- set _reasoning_effort = 'xhigh' %}
-{%- elif _effort_raw == 'medium' %}
-    {%- set _reasoning_effort = 'medium' %}
-{%- elif _effort_raw == 'minimal' or _effort_raw == 'low' %}
-    {%- set _reasoning_effort = 'low' %}
-{%- else %}
-    {{- raise_exception(
-        'Unexpected reasoning effort ' ~ _effort_raw ~
-        '. Supported values are none, minimal/low, medium, and high/xhigh; null uses the medium default.'
-    ) }}
-{%- endif %}
 {%- set reasoning_instructions = '' %}
-{%- if _thinking_enabled %}
-    {%- if _reasoning_effort == 'xhigh' %}
-        {%- set reasoning_instructions =
-            'Reasoning effort is set to xhigh. Please think carefully through the task, validate key assumptions, consider plausible alternatives, and prioritize correctness, consistency, and clarity in the final answer.'
-        %}
-    {%- elif _reasoning_effort == 'low' %}
-        {%- set reasoning_instructions =
-            'Reasoning effort is set to low. Keep your thinking brief and focused, moving directly to the conclusion without unnecessary elaboration.'
-        %}
+{%- if ns_state.thinking %}
+    {%- if ns_state.effort == 'xhigh' %}
+        {%- set reasoning_instructions = 'Reasoning effort is set to xhigh. Please think carefully through the task, validate key assumptions, consider plausible alternatives, and prioritize correctness, consistency, and clarity in the final answer.' %}
+    {%- elif ns_state.effort == 'low' %}
+        {%- set reasoning_instructions = 'Reasoning effort is set to low. Keep your thinking brief and focused, moving directly to the conclusion without unnecessary elaboration.' %}
     {%- endif %}
 {%- endif %}
-{#- -------------------------------------------------------------------------
-    Content rendering
-    ------------------------------------------------------------------------- -#}
-{%- set image_count = namespace(value=0) %}
-{%- set video_count = namespace(value=0) %}
 {%- macro render_content(content, do_vision_count, is_system_content=false) %}
     {%- if content is string %}
         {{- content }}
     {%- elif content is iterable and content is not mapping %}
         {%- for item in content %}
-            {%- if item is not mapping %}
-                {{- raise_exception(
-                    'Content-list items must be mappings with a supported text, image, or video type.'
-                ) }}
-            {%- endif %}
-            {%- set _item_type = item.type if 'type' in item else none %}
-            {%- if _item_type is not none
-                   and _item_type not in ('text', 'image', 'image_url', 'video') %}
-                {{- raise_exception(
-                    'Unexpected content item type ' ~ _item_type ~ '.'
-                ) }}
-            {%- endif %}
-            {%- set _is_image =
-                _item_type == 'image'
-                or _item_type == 'image_url'
-                or 'image' in item
-                or 'image_url' in item
-            %}
-            {%- set _is_video =
-                _item_type == 'video'
-                or 'video' in item
-            %}
-            {%- if _is_image and _is_video %}
-                {{- raise_exception(
-                    'A content item cannot contain both image and video data.'
-                ) }}
-            {%- elif _item_type == 'text' and (_is_image or _is_video) %}
-                {{- raise_exception(
-                    'A text content item cannot also contain image or video data.'
-                ) }}
-            {%- elif _is_image %}
-                {%- if is_system_content %}
-                    {{- raise_exception(
-                        'System and developer messages cannot contain images.'
-                    ) }}
-                {%- endif %}
-                {%- if do_vision_count %}
-                    {%- set image_count.value = image_count.value + 1 %}
-                {%- endif %}
-                {%- if add_vision_id %}
-                    {{- 'Picture ' ~ image_count.value ~ ': ' }}
-                {%- endif %}
-                {{- '<|vision_start|><|image_pad|><|vision_end|>' }}
-            {%- elif _is_video %}
-                {%- if is_system_content %}
-                    {{- raise_exception(
-                        'System and developer messages cannot contain videos.'
-                    ) }}
-                {%- endif %}
-                {%- if do_vision_count %}
-                    {%- set video_count.value = video_count.value + 1 %}
-                {%- endif %}
-                {%- if add_vision_id %}
-                    {{- 'Video ' ~ video_count.value ~ ': ' }}
-                {%- endif %}
-                {{- '<|vision_start|><|video_pad|><|vision_end|>' }}
-            {%- elif _item_type == 'text' or 'text' in item %}
-                {%- if 'text' not in item or item.text is not string %}
-                    {{- raise_exception(
-                        'Text content items must contain a string text field.'
-                    ) }}
+            {%- if item is mapping %}
+                {%- if item.type == 'image' or 'image' in item or 'image_url' in item %}
+                    {%- if is_system_content %}
+                        {{- raise_exception('System message cannot contain images.') }}
+                    {%- endif %}
+                    {%- if do_vision_count %}
+                        {%- set image_count.value = image_count.value + 1 %}
+                    {%- endif %}
+                    {%- if add_vision_id %}
+                        {{- 'Picture ' ~ image_count.value ~ ': ' }}
+                    {%- endif %}
+                    {{- '<|vision_start|><|image_pad|><|vision_end|>' }}
+                {%- elif item.type == 'video' or 'video' in item %}
+                    {%- if is_system_content %}
+                        {{- raise_exception('System message cannot contain videos.') }}
+                    {%- endif %}
+                    {%- if do_vision_count %}
+                        {%- set video_count.value = video_count.value + 1 %}
+                    {%- endif %}
+                    {%- if add_vision_id %}
+                        {{- 'Video ' ~ video_count.value ~ ': ' }}
+                    {%- endif %}
+                    {{- '<|vision_start|><|video_pad|><|vision_end|>' }}
+                {%- elif 'text' in item %}
+                    {{- item.text }}
+                {%- else %}
+                    {{- raise_exception('Unexpected item type in content.') }}
                 {%- endif %}
-                {{- item.text }}
             {%- else %}
-                {{- raise_exception(
-                    'Unexpected item in content list. Expected text, image, or video content.'
-                ) }}
+                {{- item | string }}
             {%- endif %}
         {%- endfor %}
     {%- elif content is none or content is undefined %}
@@ -248,49 +129,45 @@
         {{- raise_exception('Unexpected content type.') }}
     {%- endif %}
 {%- endmacro %}
-{#- -------------------------------------------------------------------------
-    Validate and merge leading system/developer messages
-    ------------------------------------------------------------------------- -#}
+{%- if not messages %}
+    {{- raise_exception('No messages provided.') }}
+{%- endif %}
 {%- set head = namespace(count=0, seen_non_system=false) %}
 {%- for message in messages %}
-    {%- set _is_system =
-        message.role == 'system' or message.role == 'developer'
-    %}
-    {%- if _is_system %}
-        {%- if head.seen_non_system %}
-            {{- raise_exception(
-                'System and developer messages must appear before all user, assistant, and tool messages.'
-            ) }}
-        {%- endif %}
+    {%- set _is_sys = (message.role == 'system' or message.role == 'developer') %}
+    {%- if _is_sys and not head.seen_non_system %}
         {%- set head.count = head.count + 1 %}
     {%- else %}
         {%- set head.seen_non_system = true %}
     {%- endif %}
 {%- endfor %}
-{%- set system_state = namespace(content='') %}
+{%- set sys_state = namespace(content='') %}
 {%- for message in messages[:head.count] %}
-    {%- set _part =
-        render_content(message.content, false, true) | trim
-    %}
+    {%- set _part = render_content(message.content, false, true) | trim %}
+    {%- if '<|think_off|>' in _part %}{%- set _part = _part.split('<|think_off|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_on|>' in _part %}{%- set _part = _part.split('<|think_on|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_xhigh|>' in _part %}{%- set _part = _part.split('<|think_xhigh|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_high|>' in _part %}{%- set _part = _part.split('<|think_high|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_ultracode|>' in _part %}{%- set _part = _part.split('<|think_ultracode|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_extreme|>' in _part %}{%- set _part = _part.split('<|think_extreme|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_max|>' in _part %}{%- set _part = _part.split('<|think_max|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_medium|>' in _part %}{%- set _part = _part.split('<|think_medium|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_low|>' in _part %}{%- set _part = _part.split('<|think_low|>') | join('') | trim %}{%- endif %}
+    {%- if '<|think_minimal|>' in _part %}{%- set _part = _part.split('<|think_minimal|>') | join('') | trim %}{%- endif %}
     {%- if _part %}
-        {%- if system_state.content %}
-            {%- set system_state.content =
-                system_state.content ~ '\n\n' ~ _part
-            %}
+        {%- if sys_state.content %}
+            {%- set sys_state.content = sys_state.content ~ '\n\n' ~ _part %}
         {%- else %}
-            {%- set system_state.content = _part %}
+            {%- set sys_state.content = _part %}
         {%- endif %}
     {%- endif %}
 {%- endfor %}
-{%- set _system_content = system_state.content %}
+{%- set _sc = sys_state.content %}
 {%- set _msgs = messages[head.count:] %}
-{#- -------------------------------------------------------------------------
-    System prompt and tool instructions
-    ------------------------------------------------------------------------- -#}
 {%- if _has_tools %}
     {{- '<|im_start|>system\n' }}
     {%- if reasoning_instructions %}
-        {{- reasoning_instructions ~ '\n\n' }}
+        {{- reasoning_instructions + '\n\n' }}
     {%- endif %}
     {{- '# Tools\n\nYou have access to the following functions:\n\n<tools>' }}
     {%- for tool in tools %}
@@ -299,252 +176,204 @@
     {%- endfor %}
     {{- '\n</tools>' }}
     {%- if _tool_format == 'json' %}
-        {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n{"name": "example_function_name", "arguments": {"example_parameter_1": "value_1", "example_parameter_2": "This is the value for the second parameter"}}\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: a single JSON object with "name" and "arguments" keys must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>' }}
+        {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<think>\nBrief explanation of tool call\n</think>\n<tool_call>\n{"name": "example_function_name", "arguments": {"example_parameter_1": "value_1", "example_parameter_2": "This is the value for the second parameter"}}\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- You can use the <think></think> block to plan your next tool call OR to synthesize data and formulate your final response to the user.\n- ALL explanation and reasoning MUST be placed strictly inside the <think></think> block.\n- Function calls MUST follow the specified format: a single JSON object with "name" and "arguments" keys inside <tool_call></tool_call> XML tags.\n- If you choose to call a tool, you MUST output the <tool_call> block IMMEDIATELY after thinking, with NO conversational text before it.\n- The <tool_call> tag MUST be at the very beginning of a new line, with NO spaces or indentation before it.\n- To call multiple functions, output a separate, completely closed <tool_call></tool_call> block for EACH function. Do NOT nest <tool_call> blocks.\n- If you have all necessary data, provide your final answer directly to the user without any tool call.\n</IMPORTANT>' }}
     {%- else %}
-        {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags\n- Required parameters MUST be specified\n- You may provide optional reasoning for your function call in natural language BEFORE the function call, but NOT after\n- If there is no function call available, answer the question like normal with your current knowledge and do not tell the user about function calls\n</IMPORTANT>' }}
+        {{- '\n\nIf you choose to call a function ONLY reply in the following format with NO suffix:\n\n<think>\nBrief explanation of tool call\n</think>\n<tool_call>\n<function=example_function_name>\n<parameter=example_parameter_1>\nvalue_1\n</parameter>\n<parameter=example_parameter_2>\nThis is the value for the second parameter\nthat can span\nmultiple lines\n</parameter>\n</function>\n</tool_call>\n\n<IMPORTANT>\nReminder:\n- You can use the <think></think> block to plan your next tool call OR to synthesize data and formulate your final response to the user.\n- ALL explanation and reasoning MUST be placed strictly inside the <think></think> block.\n- Function calls MUST follow the specified format: an inner <function=...></function> block must be nested within <tool_call></tool_call> XML tags.\n- If you choose to call a tool, you MUST output the <tool_call> block IMMEDIATELY after thinking, with NO conversational text before it.\n- The <tool_call> and <function> tags MUST be at the very beginning of a new line, with NO spaces or indentation before them.\n- To call multiple functions, output a separate, completely closed <tool_call></tool_call> block for EACH function. Do NOT nest <tool_call> blocks.\n- If you have all necessary data, provide your final answer directly to the user without any tool call.\n</IMPORTANT>' }}
     {%- endif %}
-    {%- if _system_content %}
-        {{- '\n\n' ~ _system_content }}
+    {%- if _sc %}
+        {{- '\n\n' + _sc }}
     {%- endif %}
     {{- '<|im_end|>\n' }}
 {%- else %}
-    {%- if _system_content %}
-        {{- '<|im_start|>system\n'
-            ~ (reasoning_instructions ~ '\n\n' if reasoning_instructions else '')
-            ~ _system_content
-            ~ '<|im_end|>\n'
-        }}
+    {%- if _sc %}
+        {{- '<|im_start|>system\n' + (reasoning_instructions + '\n\n' if reasoning_instructions else '') + _sc + '<|im_end|>\n' }}
     {%- elif reasoning_instructions %}
-        {{- '<|im_start|>system\n'
-            ~ reasoning_instructions
-            ~ '<|im_end|>\n'
-        }}
+        {{- '<|im_start|>system\n' + reasoning_instructions + '<|im_end|>\n' }}
     {%- endif %}
 {%- endif %}
-{#- -------------------------------------------------------------------------
-    Find the last real user query
-    ------------------------------------------------------------------------- -#}
-{%- set ns = namespace(
-    multi_step_tool=true,
-    last_query_index=(_msgs | length) - 1
-) %}
+{%- set _last_idx = _msgs | length - 1 %}
+{%- set ns = namespace(multi_step_tool=true, last_query_index=_last_idx) %}
 {%- for message in _msgs[::-1] %}
     {%- set index = (_msgs | length - 1) - loop.index0 %}
     {%- if ns.multi_step_tool and message.role == 'user' %}
-        {%- set _rendered_user =
-            render_content(message.content, false) | trim
-        %}
-        {%- if not (
-            _rendered_user.startswith('<tool_response>')
-            and _rendered_user.endswith('</tool_response>')
-        ) %}
+        {%- set _rc = render_content(message.content, false) | trim %}
+        {%- if not (_rc.startswith('<tool_response>') and _rc.endswith('</tool_response>')) %}
             {%- set ns.multi_step_tool = false %}
             {%- set ns.last_query_index = index %}
         {%- endif %}
     {%- endif %}
 {%- endfor %}
 {%- if ns.multi_step_tool %}
-    {{- raise_exception('No user query found in messages.') }}
+    {%- if _last_idx > 50 %}
+        {%- set ns.last_query_index = _last_idx %}
+    {%- else %}
+        {%- set ns.last_query_index = 0 %}
+    {%- endif %}
 {%- endif %}
-{#- -------------------------------------------------------------------------
-    Conversation rendering
-    ------------------------------------------------------------------------- -#}
-{%- set history_state = namespace(previous_role='') %}
+{%- set ns2 = namespace(prev_role='', consecutive_failures=0) %}
 {%- for message in _msgs %}
-    {%- set content =
-        render_content(message.content, true) | trim
-    %}
-    {%- if message.role == 'user' %}
-        {{- '<|im_start|>user\n'
-            ~ content
-            ~ '<|im_end|>\n'
-        }}
+    {%- set is_system = (message.role == "system" or message.role == "developer") %}
+    {%- set content = render_content(message.content, true, is_system) | trim %}
+    {%- if is_system or message.role == 'user' %}
+        {%- if '<|think_off|>' in content %}{%- set content = content.split('<|think_off|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_on|>' in content %}{%- set content = content.split('<|think_on|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_xhigh|>' in content %}{%- set content = content.split('<|think_xhigh|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_high|>' in content %}{%- set content = content.split('<|think_high|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_ultracode|>' in content %}{%- set content = content.split('<|think_ultracode|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_extreme|>' in content %}{%- set content = content.split('<|think_extreme|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_max|>' in content %}{%- set content = content.split('<|think_max|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_medium|>' in content %}{%- set content = content.split('<|think_medium|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_low|>' in content %}{%- set content = content.split('<|think_low|>') | join('') | trim %}{%- endif %}
+        {%- if '<|think_minimal|>' in content %}{%- set content = content.split('<|think_minimal|>') | join('') | trim %}{%- endif %}
+    {%- endif %}
+    {%- if is_system %}
+        {{- '<|im_start|>system\n' + content + '<|im_end|>\n' }}
+    {%- elif message.role == 'user' %}
+        {%- set ns2.consecutive_failures = 0 %}
+        {{- '<|im_start|>user\n' + content + '<|im_end|>\n' }}
     {%- elif message.role == 'assistant' %}
         {%- set reasoning_content = '' %}
-        {#- Prefer current vLLM's `reasoning` field, then retain compatibility
-            with older `reasoning_content` and other servers' `thinking`. -#}
-        {%- if message.reasoning is defined
-               and message.reasoning is not none %}
-            {%- if message.reasoning is string %}
-                {%- set reasoning_content = message.reasoning %}
-            {%- else %}
-                {%- set reasoning_content =
-                    message.reasoning | string
-                %}
-            {%- endif %}
-        {%- elif message.reasoning_content is defined
-                 and message.reasoning_content is not none %}
+        {%- set _explicit_reasoning = '' %}
+        {%- if message.reasoning_content is defined and message.reasoning_content is not none %}
             {%- if message.reasoning_content is string %}
-                {%- set reasoning_content = message.reasoning_content %}
+                {%- set _explicit_reasoning = message.reasoning_content %}
             {%- else %}
-                {%- set reasoning_content =
-                    message.reasoning_content | string
-                %}
+                {%- set _explicit_reasoning = message.reasoning_content | string %}
             {%- endif %}
-        {%- elif message.thinking is defined
-                 and message.thinking is not none %}
+        {%- elif message.thinking is defined and message.thinking is not none %}
             {%- if message.thinking is string %}
-                {%- set reasoning_content = message.thinking %}
+                {%- set _explicit_reasoning = message.thinking %}
             {%- else %}
-                {%- set reasoning_content =
-                    message.thinking | string
-                %}
+                {%- set _explicit_reasoning = message.thinking | string %}
+            {%- endif %}
+        {%- elif message.reasoning is defined and message.reasoning is not none %}
+            {%- if message.reasoning is string %}
+                {%- set _explicit_reasoning = message.reasoning %}
+            {%- else %}
+                {%- set _explicit_reasoning = message.reasoning | string %}
+            {%- endif %}
+        {%- endif %}
+        {%- if _explicit_reasoning %}
+            {%- set _lead_end = '' %}
+            {%- if content.startswith('<think>') and '</think>' in content %}
+                {%- set _lead_end = '</think>' %}
+            {%- elif content.startswith('<thinking>') and '</thinking>' in content %}
+                {%- set _lead_end = '</thinking>' %}
+            {%- elif content.startswith('</think>') %}
+                {%- set _lead_end = '</think>' %}
+            {%- elif content.startswith('</thinking>') %}
+                {%- set _lead_end = '</thinking>' %}
+            {%- endif %}
+            {%- if _lead_end %}
+                {%- set content = content.split(_lead_end)[-1].lstrip('\n') %}
+            {%- endif %}
+            {%- set reasoning_content = _explicit_reasoning %}
+        {%- else %}
+            {%- set _think_end = '' %}
+            {%- if content.startswith('</think>') %}
+                {%- set _think_end = '</think>' %}
+            {%- elif content.startswith('</thinking>') %}
+                {%- set _think_end = '</thinking>' %}
+            {%- elif '\n</think>' in content %}
+                {%- set _think_end = '\n</think>' %}
+            {%- elif '\n</thinking>' in content %}
+                {%- set _think_end = '\n</thinking>' %}
+            {%- elif '\n</ think>' in content %}
+                {%- set _think_end = '\n</ think>' %}
+            {%- elif '\n</think >' in content %}
+                {%- set _think_end = '\n</think >' %}
+            {%- elif content.startswith('<think>') and '</think>' in content %}
+                {%- set _think_end = '</think>' %}
+            {%- elif content.startswith('<thinking>') and '</thinking>' in content %}
+                {%- set _think_end = '</thinking>' %}
+            {%- endif %}
+            {%- if _think_end %}
+                {%- if 'thinking' in _think_end %}
+                    {%- set _think_start = '<thinking>' %}
+                {%- else %}
+                    {%- set _think_start = '<think>' %}
+                {%- endif %}
+                {%- set reasoning_content = content.split(_think_end)[0].rstrip('\n') %}
+                {%- if _think_start in reasoning_content %}
+                    {%- set reasoning_content = reasoning_content.split(_think_start)[-1].lstrip('\n') %}
+                {%- endif %}
+                {%- set content = content.split(_think_end)[-1].lstrip('\n') %}
             {%- endif %}
         {%- endif %}
         {%- set reasoning_content = reasoning_content | trim %}
-        {#- Preserve the original invariant: when thinking is preserved,
-            always reconstruct the thinking block, even when it is empty. -#}
-        {%- if _preserve_thinking
-               or loop.index0 > ns.last_query_index %}
-            {{- '<|im_start|>assistant\n<think>\n'
-                ~ reasoning_content
-                ~ '\n</think>\n\n'
-                ~ content
-            }}
+        {%- if (_preserve_thinking or loop.index0 > ns.last_query_index) %}
+            {{- '<|im_start|>assistant\n<think>\n' + reasoning_content + '\n</think>\n\n' + content }}
         {%- else %}
-            {{- '<|im_start|>assistant\n' ~ content }}
+            {{- '<|im_start|>assistant\n' + content }}
         {%- endif %}
-        {%- if message.tool_calls is defined
-               and message.tool_calls is not none
-               and message.tool_calls %}
-            {%- if message.tool_calls is string
-                   or message.tool_calls is mapping
-                   or message.tool_calls is not iterable %}
-                {{- raise_exception(
-                    'assistant.tool_calls must be an iterable list of tool calls.'
-                ) }}
-            {%- endif %}
+        {%- if message.tool_calls is defined and message.tool_calls and message.tool_calls is iterable and message.tool_calls is not mapping %}
             {%- for tool_call in message.tool_calls %}
-                {%- if tool_call.function is defined
-                       and tool_call.function is not none %}
+                {%- if tool_call.function is defined and tool_call.function is not none %}
                     {%- set tc = tool_call.function %}
                 {%- else %}
                     {%- set tc = tool_call %}
                 {%- endif %}
-                {%- if tc.name is not defined
-                       or tc.name is none
-                       or tc.name is not string
-                       or not tc.name %}
-                    {{- raise_exception(
-                        'Every tool call must have a non-empty string name.'
-                    ) }}
-                {%- endif %}
-                {%- set tc_name = tc.name %}
+                {%- set tc_name = tc.name if (tc.name is defined and tc.name is not none) else '' %}
                 {%- if _tool_format == 'json' %}
                     {%- if loop.first %}
                         {%- if content | trim %}
-                            {{- '\n\n<tool_call>\n' }}
-                        {%- else %}
-                            {{- '<tool_call>\n' }}
+                            {{- '\n\n' }}
                         {%- endif %}
                     {%- else %}
-                        {{- '\n<tool_call>\n' }}
+                        {{- '\n' }}
                     {%- endif %}
-                    {%- set _json_arguments = '{}' %}
-                    {%- if tc.arguments is defined
-                           and tc.arguments is not none %}
+                    {%- set _args = '{}' %}
+                    {%- if tc.arguments is defined and tc.arguments is not none %}
                         {%- if tc.arguments is mapping %}
-                            {%- set _json_arguments =
-                                tc.arguments | tojson
-                            %}
+                            {%- set _args = tc.arguments | tojson %}
                         {%- elif tc.arguments is string %}
-                            {%- set _raw_arguments =
-                                tc.arguments | trim
-                            %}
-                            {%- if _raw_arguments %}
-                                {%- if not (
-                                    _raw_arguments.startswith('{')
-                                    and _raw_arguments.endswith('}')
-                                ) %}
-                                    {{- raise_exception(
-                                        'JSON tool-call arguments must be a JSON object string.'
-                                    ) }}
-                                {%- endif %}
-                                {%- set _json_arguments =
-                                    _raw_arguments
-                                %}
+                            {%- if tc.arguments %}
+                                {%- set _args = tc.arguments %}
                             {%- endif %}
                         {%- else %}
-                            {{- raise_exception(
-                                'JSON tool-call arguments must be a mapping or a JSON object string.'
-                            ) }}
+                            {%- set _args = tc.arguments | tojson %}
                         {%- endif %}
                     {%- endif %}
-                    {{- '{"name": ' }}
-                    {{- tc_name | tojson }}
-                    {{- ', "arguments": ' }}
-                    {{- _json_arguments }}
-                    {{- '}\n</tool_call>' }}
+                    {{- '<tool_call>\n{"name": ' }}{{- tc_name | tojson }}{{- ', "arguments": ' }}{{- _args }}{{- '}\n</tool_call>' }}
                 {%- else %}
                     {%- if loop.first %}
                         {%- if content | trim %}
-                            {{- '\n\n<tool_call>\n<function='
-                                ~ tc_name
-                                ~ '>\n'
-                            }}
+                            {{- '\n\n<tool_call>\n<function=' + tc_name + '>\n' }}
                         {%- else %}
-                            {{- '<tool_call>\n<function='
-                                ~ tc_name
-                                ~ '>\n'
-                            }}
+                            {{- '<tool_call>\n<function=' + tc_name + '>\n' }}
                         {%- endif %}
                     {%- else %}
-                        {{- '\n<tool_call>\n<function='
-                            ~ tc_name
-                            ~ '>\n'
-                        }}
+                        {{- '\n<tool_call>\n<function=' + tc_name + '>\n' }}
                     {%- endif %}
-                    {%- if tc.arguments is defined
-                           and tc.arguments is not none %}
+                    {%- if tc.arguments is defined and tc.arguments is not none %}
                         {%- if tc.arguments is mapping %}
-                            {%- for args_name, args_value
-                                   in tc.arguments | items %}
-                                {%- set _argument_name =
-                                    args_name | string
-                                %}
-                                {{- '<parameter='
-                                    ~ _argument_name
-                                    ~ '>\n'
-                                }}
-                                {#- Preserve strings verbatim. Serialize every
-                                    other type as JSON so booleans and null stay
-                                    true/false/null instead of True/False/None. -#}
+                            {%- for args_name, args_value in tc.arguments.items() %}
+                                {{- '<parameter=' + args_name + '>\n' }}
                                 {%- if args_value is string %}
-                                    {%- set _argument_value =
-                                        args_value
-                                    %}
+                                    {%- set _av = args_value %}
                                 {%- else %}
-                                    {%- set _argument_value =
-                                        args_value | tojson
-                                    %}
+                                    {%- set _av = args_value | tojson %}
                                 {%- endif %}
-                                {%- if max_tool_arg_chars > 0
-                                       and _argument_value | length
-                                           > max_tool_arg_chars %}
-                                    {{- _argument_value[:max_tool_arg_chars] }}
-                                    {{- '\n[TRUNCATED — original length '
-                                        ~ (_argument_value | length | string)
-                                        ~ ' chars]'
-                                    }}
+                                {%- if max_tool_arg_chars > 0 and _av | length > max_tool_arg_chars %}
+                                    {{- _av[:max_tool_arg_chars] + '\n[TRUNCATED - original length ' ~ (_av | length | string) ~ ' chars]' }}
                                 {%- else %}
-                                    {{- _argument_value }}
+                                    {{- _av }}
                                 {%- endif %}
                                 {{- '\n</parameter>\n' }}
                             {%- endfor %}
-                        {%- elif tc.arguments is string %}
-                            {%- set _raw_arguments =
-                                tc.arguments | trim
-                            %}
-                            {%- if _raw_arguments
-                                   and _raw_arguments != '{}' %}
-                                {{- raise_exception(
-                                    'tool_call_format="xml" requires tool-call arguments to be mappings, but received a JSON string. Parse the JSON string into a mapping before applying the template, or set tool_call_format="auto" (or "json") to use the lossless JSON tool-call representation.'
-                                ) }}
-                            {%- endif %}
                         {%- else %}
-                            {{- raise_exception(
-                                'XML tool-call arguments must be a mapping. Parse JSON-string arguments before applying the template.'
-                            ) }}
+                            {%- if tc.arguments is string %}
+                                {%- set _raw_args = tc.arguments %}
+                            {%- else %}
+                                {%- set _raw_args = tc.arguments | tojson %}
+                            {%- endif %}
+                            {%- if _raw_args %}
+                                {%- if max_tool_arg_chars > 0 and _raw_args | length > max_tool_arg_chars %}
+                                    {{- _raw_args[:max_tool_arg_chars] + '\n[TRUNCATED - original length ' ~ (_raw_args | length | string) ~ ' chars]' }}
+                                {%- else %}
+                                    {{- _raw_args }}
+                                {%- endif %}
+                            {%- endif %}
                         {%- endif %}
                     {%- endif %}
                     {{- '</function>\n</tool_call>' }}
@@ -553,44 +382,48 @@
         {%- endif %}
         {{- '<|im_end|>\n' }}
     {%- elif message.role == 'tool' %}
-        {%- if history_state.previous_role != 'tool' %}
+        {%- set _content_lower = content | lower %}
+        {%- set _content_head = _content_lower[:120] %}
+        {%- set _is_code_or_grep = ('throw new ' in _content_lower or 'throw error' in _content_lower or 'console.error' in _content_lower or 'logger.error' in _content_lower or 'logging.error' in _content_lower or 'import ' in _content_head or 'def ' in _content_head or 'function ' in _content_head) %}
+        {%- set _exit_code_zero = ('exit code: 0' in _content_head or 'process exited with code 0' in _content_head) %}
+        {%- set _error_field_ok = ('"error": null' in _content_head or '"error":null' in _content_head or '"error": false' in _content_head or '"error":false' in _content_head or '"error": ""' in _content_head or '"error":""' in _content_head) %}
+        {%- set _strong_error = (('"error":' in _content_head and not _error_field_ok) or '"status": "error"' in _content_head or '"status":"error"' in _content_head or 'traceback (most recent call last):' in _content_head or 'command not found' in _content_head or 'invalid syntax' in _content_head or 'fatal:' in _content_head or (('exit code: ' in _content_head or 'process exited with code' in _content_head) and not _exit_code_zero) or _content_head.startswith('exception:') or _content_head.startswith('failed to ')) %}
+        {%- set _weak_error = ('error:' in _content_head or 'err!' in _content_head) %}
+        {%- set _weak_suppressed = ('$ ' in _content_head or 'took ' in _content_head or content | length >= 600) %}
+        {%- if not _is_code_or_grep and (_strong_error or (_weak_error and not _weak_suppressed)) %}
+            {%- set ns2.consecutive_failures = ns2.consecutive_failures + 1 %}
+        {%- else %}
+            {%- set ns2.consecutive_failures = 0 %}
+        {%- endif %}
+        {%- if ns2.prev_role != 'tool' %}
             {{- '<|im_start|>user' }}
         {%- endif %}
-        {%- if max_tool_response_chars > 0
-               and content | length > max_tool_response_chars %}
-            {%- set content =
-                content[:max_tool_response_chars]
-                ~ '\n[TRUNCATED — original length '
-                ~ (content | length | string)
-                ~ ' chars]'
-            %}
+        {%- if _tool_format != 'json' and max_tool_response_chars > 0 and content | length > max_tool_response_chars %}
+            {%- set content = content[:max_tool_response_chars] + '\n[TRUNCATED - original length ' ~ (content | length | string) ~ ' chars]' %}
+        {%- endif %}
+        {{- '\n<tool_response>\n' + content }}
+        {%- if ns2.consecutive_failures >= 2 %}
+            {{- '\n\n⚠️ SYSTEM WARNING: ' ~ ns2.consecutive_failures ~ ' consecutive tool errors detected. Your previous approach is incorrect. You MUST use a fundamentally different approach or corrected arguments.' }}
+        {%- elif ns2.consecutive_failures == 1 %}
+            {{- '\n\n⚠️ SYSTEM WARNING: The previous tool call returned an error. Diagnose the failure and retry with completely corrected arguments.' }}
         {%- endif %}
-        {{- '\n<tool_response>\n' }}
-        {{- content }}
         {{- '\n</tool_response>' }}
         {%- if loop.last %}
             {{- '<|im_end|>\n' }}
-        {%- elif _msgs[loop.index0 + 1].role != 'tool' %}
-            {{- '<|im_end|>\n' }}
+        {%- else %}
+            {%- set _next_role = _msgs[loop.index0 + 1].role %}
+            {%- if _next_role != 'tool' %}
+                {{- '<|im_end|>\n' }}
+            {%- endif %}
         {%- endif %}
-    {%- elif message.role == 'system'
-             or message.role == 'developer' %}
-        {{- raise_exception(
-            'System and developer messages must appear only at the beginning of the conversation.'
-        ) }}
     {%- else %}
-        {{- raise_exception(
-            'Unexpected message role ' ~ message.role ~ '.'
-        ) }}
+        {{- '<|im_start|>user\n[' + message.role + ']: ' + content + '<|im_end|>\n' }}
     {%- endif %}
-    {%- set history_state.previous_role = message.role %}
+    {%- set ns2.prev_role = message.role %}
 {%- endfor %}
-{#- -------------------------------------------------------------------------
-    Generation prompt
-    ------------------------------------------------------------------------- -#}
 {%- if add_generation_prompt %}
     {{- '<|im_start|>assistant\n' }}
-    {%- if not _thinking_enabled %}
+    {%- if not ns_state.thinking %}
         {{- '<think>\n\n</think>\n\n' }}
     {%- else %}
         {{- '<think>\n' }}