refactor(llm): remove dead provider helpers

lib/crewai/src/crewai/llms/base_llm.py

@@ -438,17 +438,6 @@ class BaseLLM(BaseModel, ABC):
         """
         return DEFAULT_SUPPORTS_STOP_WORDS
 
-    def _supports_stop_words_implementation(self) -> bool:
-        """Check if stop words are configured for this LLM instance.
-
-        Native providers can override supports_stop_words() to return this value
-        to ensure consistent behavior based on whether stop words are actually configured.
-
-        Returns:
-            True if stop words are configured and can be applied
-        """
-        return bool(self.stop_sequences)
-
     def _apply_stop_words(self, content: str) -> str:
         """Apply stop words to truncate response content.
 

lib/crewai/src/crewai/llms/providers/anthropic/completion.py

@@ -1385,120 +1385,6 @@ class AnthropicCompletion(BaseLLM):
             from_agent=from_agent,
         )
 
-    # TODO: we drop this
-    def _handle_tool_use_conversation(
-        self,
-        initial_response: Message | BetaMessage,
-        tool_uses: list[_AnthropicToolUseBlock],
-        params: dict[str, Any],
-        available_functions: dict[str, Any],
-        from_task: Any | None = None,
-        from_agent: Any | None = None,
-    ) -> str:
-        """Handle the complete tool use conversation flow.
-
-        This implements the proper Anthropic tool use pattern:
-        1. Claude requests tool use
-        2. We execute the tools
-        3. We send tool results back to Claude
-        4. Claude processes results and generates final response
-        """
-        tool_results = self._execute_tools_and_collect_results(
-            tool_uses, available_functions, from_task, from_agent
-        )
-
-        follow_up_params = params.copy()
-
-        assistant_content: list[
-            ThinkingBlock | ToolUseBlock | TextBlock | dict[str, Any]
-        ] = []
-        for block in initial_response.content:
-            thinking_block = self._extract_thinking_block(block)
-            if thinking_block:
-                assistant_content.append(thinking_block)
-            elif _is_tool_use_block(block):
-                assistant_content.append(
-                    {
-                        "type": "tool_use",
-                        "id": _tool_use_id(block),
-                        "name": _tool_use_name(block),
-                        "input": _tool_use_input(block),
-                    }
-                )
-            elif hasattr(block, "text"):
-                assistant_content.append({"type": "text", "text": block.text})
-
-        assistant_message = {"role": "assistant", "content": assistant_content}
-
-        user_message = {"role": "user", "content": tool_results}
-
-        follow_up_params["messages"] = params["messages"] + [
-            assistant_message,
-            user_message,
-        ]
-
-        try:
-            final_response: Message = self._get_sync_client().messages.create(
-                **follow_up_params
-            )
-
-            follow_up_usage = self._extract_anthropic_token_usage(final_response)
-            self._track_token_usage_internal(follow_up_usage)
-
-            final_content = ""
-            thinking_blocks: list[ThinkingBlock] = []
-
-            if final_response.content:
-                for content_block in final_response.content:
-                    if hasattr(content_block, "text"):
-                        final_content += content_block.text
-                    else:
-                        thinking_block = self._extract_thinking_block(content_block)
-                        if thinking_block:
-                            thinking_blocks.append(cast(ThinkingBlock, thinking_block))
-
-            if thinking_blocks:
-                self._previous_thinking_blocks = thinking_blocks
-
-            final_content = self._apply_stop_words(final_content)
-
-            finish_reason, final_response_id = self._extract_finish_reason_and_id(
-                final_response
-            )
-
-            self._emit_call_completed_event(
-                response=final_content,
-                call_type=LLMCallType.LLM_CALL,
-                from_task=from_task,
-                from_agent=from_agent,
-                messages=follow_up_params["messages"],
-                usage=follow_up_usage,
-                finish_reason=finish_reason,
-                response_id=final_response_id,
-            )
-
-            total_usage = {
-                "input_tokens": follow_up_usage.get("input_tokens", 0),
-                "output_tokens": follow_up_usage.get("output_tokens", 0),
-                "total_tokens": follow_up_usage.get("total_tokens", 0),
-            }
-
-            if total_usage.get("total_tokens", 0) > 0:
-                logging.info(f"Anthropic API tool conversation usage: {total_usage}")
-
-            return final_content
-
-        except Exception as e:
-            if is_context_length_exceeded(e):
-                logging.error(f"Context window exceeded in tool follow-up: {e}")
-                raise LLMContextLengthExceededError(str(e)) from e
-
-            logging.error(f"Tool follow-up conversation failed: {e}")
-            # Fallback to first tool result when follow-up fails
-            if tool_results:
-                return cast(str, tool_results[0]["content"])
-            raise e
-
     async def _ahandle_completion(
         self,
         params: dict[str, Any],
@@ -1830,90 +1716,6 @@ class AnthropicCompletion(BaseLLM):
 
         return full_response
 
-    async def _ahandle_tool_use_conversation(
-        self,
-        initial_response: Message | BetaMessage,
-        tool_uses: list[_AnthropicToolUseBlock],
-        params: dict[str, Any],
-        available_functions: dict[str, Any],
-        from_task: Any | None = None,
-        from_agent: Any | None = None,
-    ) -> str:
-        """Handle the complete async tool use conversation flow.
-
-        This implements the proper Anthropic tool use pattern:
-        1. Claude requests tool use
-        2. We execute the tools
-        3. We send tool results back to Claude
-        4. Claude processes results and generates final response
-        """
-        tool_results = self._execute_tools_and_collect_results(
-            tool_uses, available_functions, from_task, from_agent
-        )
-
-        follow_up_params = params.copy()
-
-        assistant_message = {"role": "assistant", "content": initial_response.content}
-
-        user_message = {"role": "user", "content": tool_results}
-
-        follow_up_params["messages"] = params["messages"] + [
-            assistant_message,
-            user_message,
-        ]
-
-        try:
-            final_response: Message = await self._get_async_client().messages.create(
-                **follow_up_params
-            )
-
-            follow_up_usage = self._extract_anthropic_token_usage(final_response)
-            self._track_token_usage_internal(follow_up_usage)
-
-            final_content = ""
-            if final_response.content:
-                for content_block in final_response.content:
-                    if hasattr(content_block, "text"):
-                        final_content += content_block.text
-
-            final_content = self._apply_stop_words(final_content)
-
-            finish_reason, final_response_id = self._extract_finish_reason_and_id(
-                final_response
-            )
-
-            self._emit_call_completed_event(
-                response=final_content,
-                call_type=LLMCallType.LLM_CALL,
-                from_task=from_task,
-                from_agent=from_agent,
-                messages=follow_up_params["messages"],
-                usage=follow_up_usage,
-                finish_reason=finish_reason,
-                response_id=final_response_id,
-            )
-
-            total_usage = {
-                "input_tokens": follow_up_usage.get("input_tokens", 0),
-                "output_tokens": follow_up_usage.get("output_tokens", 0),
-                "total_tokens": follow_up_usage.get("total_tokens", 0),
-            }
-
-            if total_usage.get("total_tokens", 0) > 0:
-                logging.info(f"Anthropic API tool conversation usage: {total_usage}")
-
-            return final_content
-
-        except Exception as e:
-            if is_context_length_exceeded(e):
-                logging.error(f"Context window exceeded in tool follow-up: {e}")
-                raise LLMContextLengthExceededError(str(e)) from e
-
-            logging.error(f"Tool follow-up conversation failed: {e}")
-            if tool_results:
-                return cast(str, tool_results[0]["content"])
-            raise e
-
     def supports_function_calling(self) -> bool:
         """Check if the model supports function calling."""
         return self.supports_tools

lib/crewai/src/crewai/llms/providers/bedrock/completion.py

@@ -2146,17 +2146,6 @@ class BedrockCompletion(BaseLLM):
         )
         return any(model_lower.startswith(m) for m in vision_models)
 
-    def _is_nova_model(self) -> bool:
-        """Check if the model is an Amazon Nova model.
-
-        Only Nova models support S3 links for multimedia.
-
-        Returns:
-            True if the model is a Nova model.
-        """
-        model_lower = self.model.lower()
-        return "amazon.nova-" in model_lower
-
     def get_file_uploader(self) -> Any:
         """Get a Bedrock S3 file uploader using this LLM's AWS credentials.
 
@@ -2185,49 +2174,6 @@ class BedrockCompletion(BaseLLM):
         except ImportError:
             return None
 
-    def _get_document_format(self, content_type: str) -> str | None:
-        """Map content type to Bedrock document format.
-
-        Args:
-            content_type: MIME type of the document.
-
-        Returns:
-            Bedrock format string or None if unsupported.
-        """
-        format_map = {
-            "application/pdf": "pdf",
-            "text/csv": "csv",
-            "text/plain": "txt",
-            "text/markdown": "md",
-            "text/html": "html",
-            "application/msword": "doc",
-            "application/vnd.openxmlformats-officedocument.wordprocessingml.document": "docx",
-            "application/vnd.ms-excel": "xls",
-            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": "xlsx",
-        }
-        return format_map.get(content_type)
-
-    def _get_video_format(self, content_type: str) -> str | None:
-        """Map content type to Bedrock video format.
-
-        Args:
-            content_type: MIME type of the video.
-
-        Returns:
-            Bedrock format string or None if unsupported.
-        """
-        format_map = {
-            "video/mp4": "mp4",
-            "video/quicktime": "mov",
-            "video/x-matroska": "mkv",
-            "video/webm": "webm",
-            "video/x-flv": "flv",
-            "video/mpeg": "mpeg",
-            "video/x-ms-wmv": "wmv",
-            "video/3gpp": "three_gp",
-        }
-        return format_map.get(content_type)
-
     def format_text_content(self, text: str) -> dict[str, Any]:
         """Format text as a Bedrock content block.
 

lib/crewai/tests/llms/anthropic/test_anthropic.py

@@ -1576,30 +1576,6 @@ def test_anthropic_dict_tool_use_blocks_execute_available_function():
     assert result == "found CrewAI"
 
 
-def test_anthropic_dict_tool_use_blocks_work_in_follow_up_conversation():
-    from crewai.llms.providers.anthropic.completion import AnthropicCompletion
-
-    llm = AnthropicCompletion(model="claude-fable-5")
-    initial_response = _dict_tool_use_response()
-    final_response = MagicMock()
-    final_response.content = [types.SimpleNamespace(text="Final answer")]
-    final_response.usage = MagicMock(input_tokens=4, output_tokens=3)
-    final_response.stop_reason = "end_turn"
-    final_response.id = "msg_final"
-    mock_client = MagicMock()
-    mock_client.messages.create.return_value = final_response
-    llm._client = mock_client
-
-    result = llm._handle_tool_use_conversation(
-        initial_response,
-        initial_response.content,
-        params={"messages": []},
-        available_functions={"search_web": lambda query: f"found {query}"},
-    )
-
-    assert result == "Final answer"
-
-
 @pytest.mark.vcr()
 def test_tool_search_discovers_and_calls_tool():
     """Tool search should discover the right tool and return a tool_use block."""