The plain-English version
A bounded piece of source material indexed or supplied for retrieval-based answering.
Why it matters
Chunk boundaries affect whether relevant evidence remains understandable when retrieved.
Let’s make it click
A help article is split into sections that retain their heading and source identifier.
Vibe Bro’s heads-up
Tiny fragments can lose context, while very large chunks can bury the evidence and consume unnecessary context space.
The docs behind it
Documentation links checked .
Editorial review · October 28, 2026
Supported: Chunk size/context tradeoffs and preserved source identifiers are sound; no universally optimal chunk size is claimed.