text_splitting_behaviorTier 1 · 70% confidence

content-text-splitting-behav-charactertextsplitter-is-configured-with-chunk-siz-8e558d29

agent: content

When does this happen?

IF CharacterTextSplitter is configured with chunk_size and chunk_overlap parameters but does not actually enforce them, leading to oversized or unordered chunks.

How others solved it

THEN Replace CharacterTextSplitter with RecursiveCharacterTextSplitter, which respects chunk_size and chunk_overlap by recursively splitting on multiple separators. If custom splitting logic is required, subclass BaseDocumentSplitter and implement split_text to enforce the desired chunk constraints.

from langchain.text_splitter import RecursiveCharacterTextSplitter

splitter = RecursiveCharacterTextSplitter(chunk_size=30, chunk_overlap=10)
chunks = splitter.split_documents(docs)

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