diff --git a/src/cli/commands/count.rs b/src/cli/commands/count.rs
index 10095ed..4b5d2bc 100644
--- a/src/cli/commands/count.rs
+++ b/src/cli/commands/count.rs
@@ -257,7 +257,10 @@ pub fn print_event_count_json(counts: &EventCounts, elapsed_ms: u64) {
         meta: RobotMeta { elapsed_ms },
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 pub fn print_event_count(counts: &EventCounts) {
@@ -325,7 +328,10 @@ pub fn print_count_json(result: &CountResult, elapsed_ms: u64) {
         meta: RobotMeta { elapsed_ms },
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 pub fn print_count(result: &CountResult) {
diff --git a/src/cli/commands/embed.rs b/src/cli/commands/embed.rs
index de1d13c..c082ded 100644
--- a/src/cli/commands/embed.rs
+++ b/src/cli/commands/embed.rs
@@ -137,5 +137,8 @@ pub fn print_embed_json(result: &EmbedCommandResult, elapsed_ms: u64) {
         data: result,
         meta: RobotMeta { elapsed_ms },
     };
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
diff --git a/src/cli/commands/generate_docs.rs b/src/cli/commands/generate_docs.rs
index a6e3267..026a16a 100644
--- a/src/cli/commands/generate_docs.rs
+++ b/src/cli/commands/generate_docs.rs
@@ -259,7 +259,10 @@ pub fn print_generate_docs_json(result: &GenerateDocsResult, elapsed_ms: u64) {
         },
         meta: RobotMeta { elapsed_ms },
     };
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 #[cfg(test)]
diff --git a/src/cli/commands/ingest.rs b/src/cli/commands/ingest.rs
index 70e9c45..54cb82b 100644
--- a/src/cli/commands/ingest.rs
+++ b/src/cli/commands/ingest.rs
@@ -982,7 +982,10 @@ pub fn print_ingest_summary_json(result: &IngestResult, elapsed_ms: u64) {
         meta: RobotMeta { elapsed_ms },
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 pub fn print_ingest_summary(result: &IngestResult) {
@@ -1109,5 +1112,8 @@ pub fn print_dry_run_preview_json(preview: &DryRunPreview) {
         data: preview.clone(),
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
diff --git a/src/cli/commands/search.rs b/src/cli/commands/search.rs
index c612d8f..f9e5d4f 100644
--- a/src/cli/commands/search.rs
+++ b/src/cli/commands/search.rs
@@ -439,5 +439,8 @@ pub fn print_search_results_json(
         let expanded = crate::cli::robot::expand_fields_preset(f, "search");
         crate::cli::robot::filter_fields(&mut value, "results", &expanded);
     }
-    println!("{}", serde_json::to_string(&value).unwrap());
+    match serde_json::to_string(&value) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
diff --git a/src/cli/commands/stats.rs b/src/cli/commands/stats.rs
index 3f97e65..e212a1d 100644
--- a/src/cli/commands/stats.rs
+++ b/src/cli/commands/stats.rs
@@ -585,5 +585,8 @@ pub fn print_stats_json(result: &StatsResult, elapsed_ms: u64) {
         },
         meta: RobotMeta { elapsed_ms },
     };
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
diff --git a/src/cli/commands/sync.rs b/src/cli/commands/sync.rs
index 68de479..65d2a6e 100644
--- a/src/cli/commands/sync.rs
+++ b/src/cli/commands/sync.rs
@@ -746,7 +746,10 @@ pub fn print_sync_json(result: &SyncResult, elapsed_ms: u64, metrics: Option<&Me
             stages,
         },
     };
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 #[derive(Debug, Default, Serialize)]
@@ -880,7 +883,10 @@ pub fn print_sync_dry_run_json(result: &SyncDryRunResult) {
         },
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 #[cfg(test)]
diff --git a/src/cli/commands/sync_status.rs b/src/cli/commands/sync_status.rs
index 1018dc9..af4a70c 100644
--- a/src/cli/commands/sync_status.rs
+++ b/src/cli/commands/sync_status.rs
@@ -268,7 +268,10 @@ pub fn print_sync_status_json(result: &SyncStatusResult, elapsed_ms: u64) {
         meta: RobotMeta { elapsed_ms },
     };
 
-    println!("{}", serde_json::to_string(&output).unwrap());
+    match serde_json::to_string(&output) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 pub fn print_sync_status(result: &SyncStatusResult) {
diff --git a/src/cli/commands/timeline.rs b/src/cli/commands/timeline.rs
index fb4b94d..b0c1c06 100644
--- a/src/cli/commands/timeline.rs
+++ b/src/cli/commands/timeline.rs
@@ -374,7 +374,10 @@ pub fn print_timeline_json_with_meta(
         let expanded = crate::cli::robot::expand_fields_preset(f, "timeline");
         crate::cli::robot::filter_fields(&mut value, "events", &expanded);
     }
-    println!("{}", serde_json::to_string(&value).unwrap());
+    match serde_json::to_string(&value) {
+        Ok(json) => println!("{json}"),
+        Err(e) => eprintln!("Error serializing to JSON: {e}"),
+    }
 }
 
 #[derive(Serialize)]