Yi LiuandSmit Barmase
6eaad52c29
When prompt caching is enabled, `into_bedrock` pushes a `CachePoint`
block
onto a message's content whenever `message.cache && supports_caching` is
true.
This push happens before the `if bedrock_message_content.is_empty() {
continue; }`
guard. As a result, a message whose content filters down to empty (for
example,
a message that contained only content stripped during conversion) still
gets
appended to the request carrying nothing but a `cachePoint`. Bedrock
rejects such
a message with a `ValidationException`, breaking the whole request.
The Anthropic path is already internally consistent here: in
`crates/language_models/src/provider/anthropic.rs` (around the message
assembly
in `completion.rs`) the empty-content check runs first, so an empty
message is
dropped before any cache marker is attached. The Bedrock path should
behave the
same way.
This change gates the `CachePoint` push on non-empty content
(`&& !bedrock_message_content.is_empty()`), so an empty message is left
empty and
then skipped by the existing `continue`, exactly mirroring the Anthropic
ordering.
The fix is minimal and touches only the cache-point condition.
Release Notes:
- Fixed Bedrock requests failing with ValidationException when the last
message filtered to empty content while prompt caching was enabled.
---------
Signed-off-by: Yi LIU <yi@quantstamp.com>
Co-authored-by: Smit Barmase <heysmitbarmase@gmail.com>
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
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