🐛 fix: improve fs_read error message with file count (#796)

* 🐛 fix: improve fs_read error message with file count

When fs_read exceeds the maximum tool response size, include the number of files in the error message to provide better context for troubleshooting. This helps users understand why the operation failed and how to adjust their request.

* 🐛 fix: improve fs_read error message with file count

When fs_read exceeds the maximum tool response size, include the number of files in the error message to provide better context for troubleshooting. This helps users understand why the operation failed and how to adjust their request.

Author: jsamuel1

crates/q_cli/src/cli/chat/tools/fs_read.rs

@@ -186,11 +186,12 @@ impl FsRead {
                 }
             }
 
+            let file_count = result.len();
             let result = result.join("\n");
             let byte_count = result.len();
             if byte_count > MAX_TOOL_RESPONSE_SIZE {
                 bail!(
-                    "This tool only supports reading up to {MAX_TOOL_RESPONSE_SIZE} bytes at a time. You tried to read {byte_count} bytes. Try executing with fewer lines specified."
+                    "This tool only supports reading up to {MAX_TOOL_RESPONSE_SIZE} bytes at a time. You tried to read {byte_count} bytes ({file_count} files). Try executing with fewer lines specified."
                 );
             }