schema_version = 1

name        = "Claude Base Chat"
description = "Anthropic Messages API request body (/v1/messages). Abstract — extend it and set model."
abstract    = true

provider_instance = "Claude"
endpoint          = "/v1/messages"

[body]
stream = true
system = """{% if existsIn(ctx, "system_prompt") %}{{ tojson(ctx.system_prompt) }}{% endif %}"""
messages = """
[
{% for msg in ctx.history %}
{
  "role": {{ tojson(msg.role) }},
  "content": [
    {% for b in msg.content_blocks %}
      {% if b.type == "text" %}
      { "type": "text", "text": {{ tojson(b.text) }} },
      {% else if b.type == "thinking" %}
      { "type": "thinking", "thinking": {{ tojson(b.thinking) }}, "signature": {{ tojson(b.signature) }} },
      {% else if b.type == "redacted_thinking" %}
      { "type": "redacted_thinking", "data": {{ tojson(b.data) }} },
      {% else if b.type == "tool_use" %}
      { "type": "tool_use", "id": {{ tojson(b.id) }}, "name": {{ tojson(b.name) }}, "input": {{ tojson(b.input) }} },
      {% else if b.type == "tool_result" %}
      { "type": "tool_result", "tool_use_id": {{ tojson(b.tool_use_id) }}, "content": {{ tojson(b.content) }} },
      {% else if b.type == "image" %}
      {
        "type": "image",
        "source":
        {% if b.is_url %}
        { "type": "url", "url": {{ tojson(b.data) }} }
        {% else %}
        { "type": "base64", "media_type": {{ tojson(b.media_type) }}, "data": {{ tojson(b.data) }} }
        {% endif %}
      },
      {% endif %}
    {% endfor %}
  ]
},
{% endfor %}
]
"""