Files
everything-claude-code/src/llm/providers/claude.py

104 lines
3.6 KiB
Python

"""Claude provider adapter."""
from __future__ import annotations
import os
from typing import Any
from anthropic import Anthropic
from llm.core.interface import (
AuthenticationError,
ContextLengthError,
LLMProvider,
RateLimitError,
)
from llm.core.types import LLMInput, LLMOutput, Message, ModelInfo, ProviderType, ToolCall
class ClaudeProvider(LLMProvider):
provider_type = ProviderType.CLAUDE
def __init__(self, api_key: str | None = None, base_url: str | None = None) -> None:
self.client = Anthropic(api_key=api_key or os.environ.get("ANTHROPIC_API_KEY"), base_url=base_url)
self._models = [
ModelInfo(
name="claude-opus-4-5",
provider=ProviderType.CLAUDE,
supports_tools=True,
supports_vision=True,
max_tokens=8192,
context_window=200000,
),
ModelInfo(
name="claude-sonnet-4-7",
provider=ProviderType.CLAUDE,
supports_tools=True,
supports_vision=True,
max_tokens=8192,
context_window=200000,
),
ModelInfo(
name="claude-haiku-4-7",
provider=ProviderType.CLAUDE,
supports_tools=True,
supports_vision=False,
max_tokens=4096,
context_window=200000,
),
]
def generate(self, input: LLMInput) -> LLMOutput:
try:
params: dict[str, Any] = {
"model": input.model or "claude-sonnet-4-7",
"messages": [msg.to_dict() for msg in input.messages],
"temperature": input.temperature,
}
if input.max_tokens:
params["max_tokens"] = input.max_tokens
if input.tools:
params["tools"] = [tool.to_dict() for tool in input.tools]
response = self.client.messages.create(**params)
tool_calls = None
if response.content and hasattr(response.content[0], "type"):
if response.content[0].type == "tool_use":
tool_calls = [
ToolCall(
id=getattr(response.content[0], "id", ""),
name=getattr(response.content[0], "name", ""),
arguments=getattr(response.content[0].input, "__dict__", {}),
)
]
return LLMOutput(
content=response.content[0].text if response.content else "",
tool_calls=tool_calls,
model=response.model,
usage={
"input_tokens": response.usage.input_tokens,
"output_tokens": response.usage.output_tokens,
},
stop_reason=response.stop_reason,
)
except Exception as e:
msg = str(e)
if "401" in msg or "authentication" in msg.lower():
raise AuthenticationError(msg, provider=ProviderType.CLAUDE) from e
if "429" in msg or "rate_limit" in msg.lower():
raise RateLimitError(msg, provider=ProviderType.CLAUDE) from e
if "context" in msg.lower() and "length" in msg.lower():
raise ContextLengthError(msg, provider=ProviderType.CLAUDE) from e
raise
def list_models(self) -> list[ModelInfo]:
return self._models.copy()
def validate_config(self) -> bool:
return bool(self.client.api_key)
def get_default_model(self) -> str:
return "claude-sonnet-4-7"