diff --git a/bundle/bundle.go b/bundle/bundle.go
index 0c3d6f9..e8acb6a 100644
--- a/bundle/bundle.go
+++ b/bundle/bundle.go
@@ -112,7 +112,43 @@ func (b *deepCodeBundle) UploadBatch(ctx context.Context, requestId string, batc
 func (b *deepCodeBundle) extendBundle(ctx context.Context, requestId string, uploadBatch *Batch) error {
 	var err error
 	if uploadBatch.hasContent() {
+		// Log batch metadata before upload to track what's being sent
+		filePaths := make([]string, 0, len(uploadBatch.documents))
+		fileHashes := make(map[string]string)
+		totalContentSize := 0
+		for filePath, bundleFile := range uploadBatch.documents {
+			filePaths = append(filePaths, filePath)
+			fileHashes[filePath] = bundleFile.Hash
+			totalContentSize += bundleFile.ContentSize
+		}
+
+		b.logger.Debug().
+			Str("requestId", requestId).
+			Str("bundleHash", b.bundleHash).
+			Int("batchFileCount", len(uploadBatch.documents)).
+			Int("batchTotalSize", totalContentSize).
+			Int("batchEstimatedSize", uploadBatch.getSize()).
+			Strs("filePaths", filePaths).
+			Interface("fileHashes", fileHashes).
+			Msg("Uploading partial bundle batch - metadata and content details")
+
 		b.bundleHash, b.missingFiles, err = b.SnykCode.ExtendBundle(ctx, b.bundleHash, uploadBatch.documents, []string{})
+
+		if err != nil {
+			b.logger.Error().
+				Err(err).
+				Str("requestId", requestId).
+				Str("bundleHash", b.bundleHash).
+				Int("batchFileCount", len(uploadBatch.documents)).
+				Msg("Failed to extend bundle on backend")
+		} else {
+			b.logger.Debug().
+				Str("requestId", requestId).
+				Str("newBundleHash", b.bundleHash).
+				Int("missingFilesCount", len(b.missingFiles)).
+				Interface("missingFiles", b.missingFiles).
+				Msg("Successfully extended bundle on backend")
+		}
 		b.logger.Debug().Str("requestId", requestId).Interface("MissingFiles", b.missingFiles).Msg("extended deepCodeBundle on backend")
 	}
 
diff --git a/bundle/bundle_manager.go b/bundle/bundle_manager.go
index 3a18b9e..2e9403c 100644
--- a/bundle/bundle_manager.go
+++ b/bundle/bundle_manager.go
@@ -214,15 +214,40 @@ func (b *bundleManager) Upload(
 			return bundle, nil
 		}
 
-		for _, batch := range batches {
+		for batchIndex, batch := range batches {
 			if err := ctx.Err(); err != nil {
 				return bundle, err
 			}
+
+			// Log batch information before enrichment and upload
+			b.logger.Debug().
+				Str("requestId", requestId).
+				Str("rootPath", bundle.GetRootPath()).
+				Str("bundleHash", bundle.GetBundleHash()).
+				Int("batchIndex", batchIndex+1).
+				Int("totalBatches", len(batches)).
+				Int("batchFileCount", len(batch.documents)).
+				Int("batchEstimatedSize", batch.getSize()).
+				Msg("Starting partial bundle upload batch")
+
 			b.enrichBatchWithFileContent(batch, bundle.GetRootPath())
 			err := bundle.UploadBatch(s.Context(), requestId, batch)
 			if err != nil {
+				b.logger.Error().
+					Err(err).
+					Str("requestId", requestId).
+					Int("batchIndex", batchIndex+1).
+					Int("totalBatches", len(batches)).
+					Msg("Failed to upload partial bundle batch")
 				return bundle, err
 			}
+
+			b.logger.Debug().
+				Str("requestId", requestId).
+				Int("batchIndex", batchIndex+1).
+				Int("totalBatches", len(batches)).
+				Msg("Completed partial bundle upload batch")
+
 			batch.documents = make(map[string]deepcode.BundleFile)
 		}
 	}
@@ -239,12 +264,51 @@ func (b *bundleManager) enrichBatchWithFileContent(batch *Batch, rootPath string
 			b.logger.Error().Err(err).Str("file", filePath).Msg("Failed to decode Path")
 			continue
 		}
+
+		// Store original hash and metadata before reading file
+		originalHash := bundleFile.Hash
+		originalContentSize := bundleFile.ContentSize
+
+		// Log metadata before reading file content
+		b.logger.Debug().
+			Str("filePath", filePath).
+			Str("absolutePath", absPath).
+			Str("originalHash", originalHash).
+			Int("originalContentSize", originalContentSize).
+			Msg("Preparing to read file for partial bundle upload")
+
 		content, err := os.ReadFile(absPath)
 		if err != nil {
 			b.logger.Error().Err(err).Str("file", filePath).Msg("Failed to read bundle file")
 			continue
 		}
 
+		// Compute hash from freshly read content to detect modifications
+		newHash, hashErr := util.Hash(content)
+		if hashErr != nil {
+			b.logger.Warn().Err(hashErr).Str("file", filePath).Msg("Failed to compute hash for freshly read content")
+		} else {
+			// Check if file was modified in flight
+			fileModified := originalHash != newHash
+			if fileModified {
+				b.logger.Warn().
+					Str("filePath", filePath).
+					Str("absolutePath", absPath).
+					Str("originalHash", originalHash).
+					Str("newHash", newHash).
+					Int("originalContentSize", originalContentSize).
+					Int("newContentSize", len(content)).
+					Msg("File modification detected during partial bundle upload - file content changed between bundle creation and upload")
+			} else {
+				b.logger.Debug().
+					Str("filePath", filePath).
+					Str("absolutePath", absPath).
+					Str("hash", newHash).
+					Int("contentSize", len(content)).
+					Msg("File content verified - no modifications detected")
+			}
+		}
+
 		utf8Content, err := util.ConvertToUTF8(content)
 		if err != nil {
 			b.logger.Error().Err(err).Str("file", filePath).Msg("Failed to convert bundle file to UTF-8")
diff --git a/internal/deepcode/client.go b/internal/deepcode/client.go
index a8c1de3..8a40b96 100644
--- a/internal/deepcode/client.go
+++ b/internal/deepcode/client.go
@@ -234,6 +234,22 @@ func (s *deepcodeClient) Request(
 
 	codeClientHTTP.AddDefaultHeaders(req, codeClientHTTP.NoRequestId, s.config.Organization(), method, true)
 
+	fullURL := host + path
+	logFields := log.Debug().
+		Str("method", method).
+		Str("url", fullURL).
+		Str("requestBody", string(requestBody))
+
+	headers := make(map[string]string)
+	for key, values := range req.Header {
+		if (strings.ToLower(key) != "authorization") && (strings.ToLower(key) != "session-token") {
+			headers[key] = strings.Join(values, ", ")
+		}
+	}
+	logFields = logFields.Interface("headers", headers)
+
+	logFields.Msg("HTTP request details for bundle operation")
+
 	response, err := s.httpClient.Do(req)
 	if err != nil {
 		return nil, err