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docs: correct chunk-size units (characters, default 2048) in configuration

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DOCUMENT_CHUNK_SIZE/OVERLAP were documented as "words" with a 512/50
default; the implementation measures characters and defaults to 2048/200
(config.py, DocumentChunker). Update docs/configuration.md (config block,
tuning guidance, examples, env-var table) and env.sample accordingly, and
cross-reference DOCUMENT_CHUNK_PAGE_AWARE for the PDF path.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Chris Coutinho
2026-06-06 13:46:32 +02:00
co-authored by Claude Opus 4.8
parent 2f2a7f9659
commit 4977216b62
2 changed files with 21 additions and 19 deletions
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env.sample
+3 -3
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@@ -203,9 +203,9 @@ NEXTCLOUD_PASSWORD=
# Uses basic in-memory embeddings if no provider configured
#
# Document Chunking:
# Configure how documents are split before embedding
#DOCUMENT_CHUNK_SIZE=512
#DOCUMENT_CHUNK_OVERLAP=50
# Configure how documents are split before embedding (units are characters)
#DOCUMENT_CHUNK_SIZE=2048
#DOCUMENT_CHUNK_OVERLAP=200
# Page-aware chunking for PDFs: split on page boundaries first so no chunk spans
# a page (exact page numbers, clean snippets, ~1 chunk/page when chunk size >=
# the largest page). Set false to use the legacy char-based path. Default: true