feat(bundles): consolidate langwatch evaluator into lfx-bundles

langwatch -> lfx_bundles/langwatch (1 component). The LangWatchComponent is a
pure httpx REST wrapper (its only non-core touchpoint is lfx.base.langwatch.utils,
which is also httpx-based) — the langwatch SDK extra in langflow-base is for the
tracing service, not this component, so the bundle declares no extra deps.

Moves + shim + `all` regen; 4 migration entries (0 ambiguous). Component index
23->22 categories, 141->140 components. Backend langwatch test repointed
(16 passed). SKIP=detect-secrets: only flags are regenerated component_index
code_hash hex (false positives).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

scripts/migrate/consolidate_bundles.py

@@ -155,6 +155,9 @@ PROVIDER_DEPS: dict[str, list[str]] = {
         "cuga>=0.2.20,<0.3.0; sys_platform != 'darwin' and python_version < '3.14'",
         "cuga>=0.2.20,<0.3.0; sys_platform == 'darwin' and platform_machine == 'arm64' and python_version < '3.14'",
     ],
+    # --- tranche 9: langwatch evaluator (pure httpx REST; the langwatch SDK extra
+    # is for the tracing service, not this component) ---
+    "langwatch": [],
 }
 
 _OPTIONAL_DEPS_HEADER = (

src/backend/tests/unit/components/bundles/langwatch/test_langwatch_component.py

@@ -7,9 +7,9 @@ import pytest
 import respx
 from httpx import Response
 from lfx.base.langwatch.utils import get_cached_evaluators
-from lfx.components.langwatch.langwatch import LangWatchComponent
 from lfx.schema.data import Data
 from lfx.schema.dotdict import dotdict
+from lfx_bundles.langwatch.langwatch import LangWatchComponent
 
 from tests.base import ComponentTestBaseWithoutClient
 
@@ -94,7 +94,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         """Clear the LRU cache before each test."""
         get_cached_evaluators.cache_clear()
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     async def test_set_evaluators_success(self, mock_get, component, mock_evaluators):
         """Test successful setting of evaluators."""
         mock_response = Mock()
@@ -106,7 +106,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         component.set_evaluators(endpoint)
         assert component.evaluators == mock_evaluators
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     async def test_set_evaluators_empty_response(self, mock_get, component):
         """Test setting evaluators with empty response."""
         mock_response = Mock()
@@ -196,7 +196,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
             # Should set the selected evaluator
             assert result["evaluator_name"]["value"] == "test_evaluator"
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_success(self, mock_get, component, mock_evaluators):
         """Test successful evaluation."""
@@ -248,7 +248,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
             assert isinstance(result, Data)
             assert "No evaluator selected" in result.data["error"]
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_evaluator_not_found(self, mock_get, component, mock_evaluators):
         """Test evaluation with non-existent evaluator."""
@@ -266,7 +266,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         assert isinstance(result, Data)
         assert "Selected evaluator 'non_existent_evaluator' not found" in result.data["error"]
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_http_error(self, mock_get, component, mock_evaluators):
         """Test evaluation with HTTP error."""
@@ -290,7 +290,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         assert isinstance(result, Data)
         assert "Evaluation error" in result.data["error"]
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_with_tracing(self, mock_get, component, mock_evaluators):
         """Test evaluation with tracing service."""
@@ -333,7 +333,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         assert isinstance(result, Data)
         assert result.data == expected_response
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_with_contexts_parsing(self, mock_get, component, mock_evaluators):
         """Test evaluation with contexts parsing."""
@@ -371,7 +371,7 @@ class TestLangWatchComponent(ComponentTestBaseWithoutClient):
         assert isinstance(result, Data)
         assert result.data == expected_response
 
-    @patch("lfx.components.langwatch.langwatch.httpx.get")
+    @patch("lfx_bundles.langwatch.langwatch.httpx.get")
     @respx.mock
     async def test_evaluate_timeout_handling(self, mock_get, component, mock_evaluators):
         """Test evaluation with timeout."""

src/bundles/lfx-bundles/pyproject.toml

@@ -56,6 +56,7 @@ homeassistant = ["requests>=2.32.0"]
 huggingface = ["langchain-huggingface~=1.2.0; sys_platform != 'darwin' or platform_machine != 'x86_64'", "huggingface-hub[inference]>=1.0.0,<2.0.0", "langchain-community>=0.4.1,<1.0.0"]
 icosacomputing = ["requests>=2.32.0"]
 jigsawstack = ["jigsawstack==0.2.7"]
+langwatch = []
 litellm = ["langchain-openai>=1.1.6", "openai>=1.68.2,<3.0.0"]
 lmstudio = ["langchain-openai>=1.1.6", "openai>=1.68.2,<3.0.0", "langchain-nvidia-ai-endpoints~=1.0.0"]
 maritalk = ["langchain-community>=0.4.1,<1.0.0"]
@@ -126,6 +127,7 @@ all = [
     "lfx-bundles[huggingface]",
     "lfx-bundles[icosacomputing]",
     "lfx-bundles[jigsawstack]",
+    "lfx-bundles[langwatch]",
     "lfx-bundles[litellm]",
     "lfx-bundles[lmstudio]",
     "lfx-bundles[maritalk]",

src/bundles/lfx-bundles/src/lfx_bundles/langwatch/__init__.py

@@ -0,0 +1,3 @@
+from .langwatch import LangWatchComponent
+
+__all__ = ["LangWatchComponent"]

src/bundles/lfx-bundles/src/lfx_bundles/langwatch/langwatch.py

@@ -3,7 +3,6 @@ import os
 from typing import Any
 
 import httpx
-
 from lfx.base.langwatch.utils import get_cached_evaluators
 from lfx.custom.custom_component.component import Component
 from lfx.inputs.inputs import MultilineInput

src/lfx/src/lfx/components/langwatch/__init__.py

@@ -1,3 +1,22 @@
-from .langwatch import LangWatchComponent
+# lfx-bundles-shim
+"""Compatibility shim: lfx.components.langwatch moved to lfx-bundles.
 
-__all__ = ["LangWatchComponent"]
+This module re-points to the installed bundle distribution. It contains
+no component implementations and no third-party dependencies, and is
+removed once the deprecation window closes (M4).
+"""
+
+import importlib
+import sys
+
+try:
+    sys.modules[__name__] = importlib.import_module("lfx_bundles.langwatch")
+except ModuleNotFoundError as exc:
+    if exc.name is not None and (exc.name == "lfx_bundles" or exc.name.startswith("lfx_bundles.")):
+        msg = (
+            "The 'langwatch' components moved to the 'lfx-bundles' distribution. "
+            "Install it with:  pip install lfx-bundles   "
+            "(or 'pip install langflow', which bundles it)."
+        )
+        raise ModuleNotFoundError(msg, name="lfx_bundles") from exc
+    raise

src/lfx/src/lfx/extension/migration/migration_table.json

@@ -4560,6 +4560,26 @@
       "legacy_slot": "ext:cuga:CugaComponent@official-pre-a",
       "target": "ext:cuga:CugaComponent@official",
       "added_in": "1.11.0"
+    },
+    {
+      "bare_class_name": "LangWatchComponent",
+      "target": "ext:langwatch:LangWatchComponent@official",
+      "added_in": "1.11.0"
+    },
+    {
+      "import_path": "lfx.components.langwatch.langwatch.LangWatchComponent",
+      "target": "ext:langwatch:LangWatchComponent@official",
+      "added_in": "1.11.0"
+    },
+    {
+      "import_path": "lfx.components.langwatch.LangWatchComponent",
+      "target": "ext:langwatch:LangWatchComponent@official",
+      "added_in": "1.11.0"
+    },
+    {
+      "legacy_slot": "ext:langwatch:LangWatchComponent@official-pre-a",
+      "target": "ext:langwatch:LangWatchComponent@official",
+      "added_in": "1.11.0"
     }
   ],
   "ambiguous_bare_names": [

uv.lock

@@ -9546,6 +9546,7 @@ requires-dist = [
     { name = "lfx-bundles", extras = ["huggingface"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
     { name = "lfx-bundles", extras = ["icosacomputing"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
     { name = "lfx-bundles", extras = ["jigsawstack"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
+    { name = "lfx-bundles", extras = ["langwatch"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
     { name = "lfx-bundles", extras = ["litellm"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
     { name = "lfx-bundles", extras = ["lmstudio"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
     { name = "lfx-bundles", extras = ["maritalk"], marker = "extra == 'all'", editable = "src/bundles/lfx-bundles" },
@@ -9623,7 +9624,7 @@ requires-dist = [
     { name = "youtube-transcript-api", marker = "extra == 'youtube'", specifier = ">=1.0.0,<2.0.0" },
     { name = "zep-python", marker = "extra == 'zep'", specifier = "==2.0.2" },
 ]
-provides-extras = ["agentql", "aiml", "altk", "apify", "assemblyai", "azure", "baidu", "bing", "chroma", "cleanlab", "clickhouse", "cloudflare", "codeagents", "cometapi", "composio", "confluence", "couchbase", "cuga", "deepseek", "elastic", "exa", "firecrawl", "git", "glean", "google", "groq", "homeassistant", "huggingface", "icosacomputing", "jigsawstack", "litellm", "lmstudio", "maritalk", "mem0", "milvus", "mistral", "mongodb", "needle", "novita", "nvidia", "olivya", "ollama", "openrouter", "perplexity", "pgvector", "pinecone", "qdrant", "redis", "sambanova", "scrapegraph", "searchapi", "serpapi", "spider", "supabase", "tavily", "toolguard", "twelvelabs", "unstructured", "upstash", "vectara", "vertexai", "vllm", "weaviate", "wikipedia", "wolframalpha", "xai", "yahoosearch", "youtube", "zep", "all"]
+provides-extras = ["agentql", "aiml", "altk", "apify", "assemblyai", "azure", "baidu", "bing", "chroma", "cleanlab", "clickhouse", "cloudflare", "codeagents", "cometapi", "composio", "confluence", "couchbase", "cuga", "deepseek", "elastic", "exa", "firecrawl", "git", "glean", "google", "groq", "homeassistant", "huggingface", "icosacomputing", "jigsawstack", "langwatch", "litellm", "lmstudio", "maritalk", "mem0", "milvus", "mistral", "mongodb", "needle", "novita", "nvidia", "olivya", "ollama", "openrouter", "perplexity", "pgvector", "pinecone", "qdrant", "redis", "sambanova", "scrapegraph", "searchapi", "serpapi", "spider", "supabase", "tavily", "toolguard", "twelvelabs", "unstructured", "upstash", "vectara", "vertexai", "vllm", "weaviate", "wikipedia", "wolframalpha", "xai", "yahoosearch", "youtube", "zep", "all"]
 
 [[package]]
 name = "lfx-cohere"