giulio-leone:fix/empty-list-tool-return-30578 - Branch - langchain-ai/langchain

fix(core): stringify empty list from tool return instead of passing as content blocks

#35635

Comparing

giulio-leone:fix/empty-list-tool-return-30578

(

70a3fce

) with

master

(

527fc02

)

-12%

Regression: 1

Untouched: 12

Skipped: 23

Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data. For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

Benchmarks

36 total

test_import_time[RunnableLambda]

libs/core/tests/benchmarks/test_imports.py

-12%

521.7 ms*590 ms

test_import_time[Document]

libs/core/tests/benchmarks/test_imports.py

+2%

202.1 ms*197.9 ms

test_import_time[CallbackManager]

libs/core/tests/benchmarks/test_imports.py

+1%

352.1 ms*347.9 ms

test_async_callbacks_in_sync

libs/core/tests/benchmarks/test_async_callbacks.py

+1%

25.6 ms*25.3 ms

test_import_time[InMemoryRateLimiter]

libs/core/tests/benchmarks/test_imports.py

-1%

183.4 ms*185.7 ms

test_import_time[HumanMessage]

libs/core/tests/benchmarks/test_imports.py

-2%

286.5 ms*291.6 ms

test_import_time[ChatPromptTemplate]

libs/core/tests/benchmarks/test_imports.py

-2%

705.5 ms*719.6 ms

test_import_time[LangChainTracer]

libs/core/tests/benchmarks/test_imports.py

-2%

480.7 ms*491.4 ms

test_import_time[InMemoryVectorStore]

libs/core/tests/benchmarks/test_imports.py

-3%

637.1 ms*658.4 ms

test_import_time[Runnable]

libs/core/tests/benchmarks/test_imports.py

-3%

544.1 ms*562.9 ms

test_import_time[BaseChatModel]

libs/core/tests/benchmarks/test_imports.py

-4%

579.9 ms*602.6 ms

test_import_time[PydanticOutputParser]

libs/core/tests/benchmarks/test_imports.py

-4%

565.8 ms*590 ms

test_import_time[tool]

libs/core/tests/benchmarks/test_imports.py

-9%

603 ms*666.2 ms

The benchmarks below were skipped, so their baseline results are used instead. If they were deleted in your codebase, archive them to remove them from the performance reports.
Learn more about archiving benchmarks

test_create_chat_prompt_init_time

libs/partners/prompty/tests/unit_tests/test_standard.py

Skipped

311.9 µs*

test_qdrant_vectorstore_init_time

libs/partners/qdrant/tests/unit_tests/test_standard.py

Skipped

225 ms*

test_exa_retriever_init_time

libs/partners/exa/tests/unit_tests/test_standard.py

Skipped

316.4 µs*

test_init_time

libs/partners/ollama/tests/unit_tests/test_chat_models.py::TestChatOllama

Skipped

1.6 s*

test_nomic_embeddings_init_time

libs/partners/nomic/tests/unit_tests/test_standard.py

Skipped

1.5 ms*

test_init_time

libs/partners/mistralai/tests/unit_tests/test_standard.py::TestMistralStandard

Skipped

9.2 ms*

test_init_time

libs/partners/perplexity/tests/unit_tests/test_chat_models_standard.py::TestPerplexityStandard

Skipped

1.7 s*

test_init_time

libs/partners/anthropic/tests/unit_tests/test_standard.py::TestAnthropicBedrockStandard

Skipped

1.1 ms*

test_chroma_init_time

libs/partners/chroma/tests/unit_tests/test_standard.py

Skipped

60.7 ms*

test_init_time

libs/partners/fireworks/tests/unit_tests/test_standard.py::TestFireworksStandard

Skipped

6.6 s*

test_init_time

libs/partners/groq/tests/unit_tests/test_standard.py::TestGroqStandard

Skipped

1.6 s*

test_init_time_with_client

libs/partners/anthropic/tests/unit_tests/test_standard.py

Skipped

2.3 ms*

Commits

Click on a commit to change the comparison range

Base

master

527fc02

-11.58%

fix(core): stringify empty list from tool return instead of passing as content blocks

70a3fce

11 days ago

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