Sigil Python Provider Helper: Anthropic

sigil-sdk-anthropic provides strict Anthropic Messages wrappers and mappers for Sigil.

Embeddings support

This helper currently supports Anthropic Messages APIs only. Native Anthropic embeddings endpoints are not available in the official SDK/API surface used in this repository.

Installation

pip install sigil-sdk sigil-sdk-anthropic anthropic

Wrapper Mode (Sync)

from anthropic.types.message_create_params import MessageCreateParams
from sigil_sdk import Client, ClientConfig
from sigil_sdk_anthropic import AnthropicOptions, messages

client = Client(ClientConfig())

request: MessageCreateParams = {
    "model": "claude-sonnet-4-5",
    "max_tokens": 256,
    "messages": [{"role": "user", "content": "Hello"}],
}

def provider_call(req: MessageCreateParams):
    return anthropic_client.messages.create(**req)

response = messages.create(
    client,
    request,
    provider_call,
    AnthropicOptions(conversation_id="conv-1", agent_name="assistant", agent_version="1.0.0"),
)

Wrapper Mode (Stream)

from sigil_sdk_anthropic import AnthropicStreamSummary, messages

summary = messages.stream(
    client,
    request,
    lambda req: AnthropicStreamSummary(
        output_text="streamed text",
        events=[{"type": "content_block_delta", "delta": {"type": "text_delta", "text": "streamed text"}}],
    ),
)

Mapper Mode

generation = messages.from_request_response(request, response)
stream_generation = messages.from_stream(request, summary)

Raw Provider Artifacts (Opt-In)

options = AnthropicOptions(raw_artifacts=True)

Raw artifacts are default OFF and should only be enabled for diagnostics.

Provider metadata mapping

In addition to normalized usage fields, Anthropic server-tool counters are mapped into Sigil metadata when present:

sigil.gen_ai.usage.server_tool_use.web_search_requests
sigil.gen_ai.usage.server_tool_use.web_fetch_requests
sigil.gen_ai.usage.server_tool_use.total_requests

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