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fix: remove invalid .cause() call that breaks compilation #20

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Merged
gh-worker-dd-mergequeue-cf854d merged 1 commit into from
Aug 19, 2026
Merged

fix: remove invalid .cause() call that breaks compilation #20

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8 changes: 5 additions & 3 deletions lib/llm/src/preprocessor.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1096,11 +1096,13 @@ impl OpenAIPreprocessor {
let _nvtx = dynamo_nvtx_range!("preprocess.template");
self.apply_template(request)
.map_err(|e| {
let msg = format!("Failed to apply prompt template: {e}");
// Template rendering errors (e.g., invalid message role, malformed chat history)
// are client validation errors and should return 400, not 500.
// Note: We don't use .cause(e) because anyhow::Error doesn't implement
// std::error::Error in the way DynamoErrorBuilder::cause expects.
DynamoError::builder()
.error_type(ErrorType::InvalidArgument)
.message(msg)
.cause(e)
.message(format!("Failed to apply prompt template: {e:#}"))
.build()
.into()
})?
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