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6f4c30a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | {%- if not messages %}
{{- raise_exception('No messages provided.') }}
{%- endif %}
{%- set enable_thinking = enable_thinking | default(true) %}
{%- set reasoning_instructions = '' %}
{%- if enable_thinking is true %}
{%- set resolved_reasoning_effort = reasoning_effort|default('high') %}
{%- if resolved_reasoning_effort not in ('high', 'low') %}
{{- raise_exception('Unexpected reasoning effort ' ~ reasoning_effort ~ '. Supported types are high (default) and low.') }}
{%- endif %}
{%- if resolved_reasoning_effort == 'high' %}
{%- set reasoning_instructions = '\n`thinking_effort` guides on how much to think in your thinking channel (not including the response channel), supported values include `low` and `high`.\nNow the system is invoked with `thinking_effort=high`.' %}
{%- elif resolved_reasoning_effort == 'low' %}
{%- set reasoning_instructions = '\n`thinking_effort` guides on how much to think in your thinking channel (not including the response channel), supported values include `low` and `high`.\nNow the system is invoked with `thinking_effort=low`.' %}
{%- endif %}
{%- endif %}
{#- Render a string or a list of text blocks. -#}
{%- macro render_content(content, context_name) %}
{%- if content is string %}
{{- content }}
{%- elif content is none or content is undefined %}
{{- '' }}
{%- elif content is iterable and content is not mapping %}
{%- for block in content %}
{%- if block.type == 'text' %}
{{- block.text }}
{%- else %}
{{- raise_exception('Unsupported ' ~ context_name ~ ' content block type: ' ~ (block.type | string)) }}
{%- endif %}
{%- endfor %}
{%- else %}
{{- raise_exception(context_name ~ ' content must be a string or a list of text blocks') }}
{%- endif %}
{%- endmacro %}
{#- Default system prompt -#}
{%- set default_system = "you are a helpful assistant." + reasoning_instructions %}
{#- The first message-level system is placed in the initial system block. -#}
{%- set ns = namespace(initial_system='') %}
{%- if messages[0].role == "system" %}
{%- set ns.initial_system = render_content(messages[0].content, 'system') %}
{%- endif %}
{#- System block -#}
{{- '<｜start▁of▁sentence｜><|System|>' + '\n' + default_system }}
{%- if tools %}
{{- '\n\n' + '## Tools' + '\n' + 'You have access to the following functions:' + '\n' + '<tools>' }}
{%- for tool in tools %}
{{- '\n' + (tool.function | tojson(separators=(',', ':'))) }}
{%- endfor %}
{{- '\n' + '</tools>' }}
{%- endif %}
{%- if ns.initial_system %}
{{- '\n\n' + ns.initial_system }}
{%- endif %}
{{- '<｜end▁of▁sentence｜>'}}
{#- Conversation turns -#}
{%- for message in messages %}
{%- if message.role == "system" %}
{#- The first system message was consumed by the initial block. -#}
{%- if not loop.first %}
{{- '<｜start▁of▁sentence｜><|System|>\n' + render_content(message.content, 'system') + '<｜end▁of▁sentence｜>' }}
{%- endif %}
{%- elif message.role == "user" %}
{{- '<｜start▁of▁sentence｜><|User|>' + render_content(message.content, 'user') + '<｜end▁of▁sentence｜>' }}
{%- elif message.role == "assistant" %}
{%- set assistant_content = render_content(message.content, 'assistant') %}
{%- if message.reasoning_content is defined and message.reasoning_content %}
{%- set reasoning_content = message.reasoning_content %}
{%- else %}
{%- set reasoning_content = '' %}
{%- endif %}
{{- '<｜start▁of▁sentence｜><|Bot|>'}}
{%- if reasoning_content %}
{{- '<think>' + reasoning_content + '</think>'}}
{%- else %}
{{- '</think>' }}
{%- endif %}
{%- if assistant_content %}
{{- assistant_content }}
{%- endif %}
{%- if message.tool_calls is defined and message.tool_calls is not none %}
{%- for tool_call in message.tool_calls %}
{%- if tool_call.function.arguments is not mapping %}
{{- raise_exception('tool_call.function.arguments must be a dictionary; normalize JSON strings before apply_chat_template') }}
{%- endif %}
{%- set args = tool_call.function.arguments %}
{{- '<tool_call>' + tool_call.function.name }}
{%- for k, v in args.items() %}
{{- '<arg_key>' ~ k ~ '</arg_key><arg_value>' ~ (v if v is string else v | tojson(separators=(', ', ': '))) ~ '</arg_value>' }}
{%- endfor %}
{{- '</tool_call>' }}
{%- endfor %}
{%- endif %}
{{- '<｜end▁of▁sentence｜>' }}
{%- elif message.role == "tool" %}
{%- if loop.previtem is undefined or loop.previtem.role != "tool" %}
{{- '<｜start▁of▁sentence｜><|Tool|>' }}
{%- endif %}
{{- '<tool_response>' ~ message.content ~ '</tool_response>' }}
{%- if loop.nextitem is undefined or loop.nextitem.role != "tool" %}
{{- '<｜end▁of▁sentence｜>' }}
{%- endif %}
{%- else %}
{{- raise_exception('Unsupported message role: ' ~ message.role) }}
{%- endif %}
{%- endfor %}
{#- Generation prompt -#}
{%- if add_generation_prompt %}
{{- '<｜start▁of▁sentence｜><|Bot|>' }}
{%- if enable_thinking is defined and enable_thinking %}
{{- '<think>' }}
{%- endif %}
{%- if enable_thinking is defined and not enable_thinking %}
{{- '</think>' }}
{%- endif %}
{%- endif %}
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