fix: handle mac screenshots with the image tool (#1622)

crates/goose-mcp/src/developer/mod.rs

@@ -805,13 +805,56 @@ impl DeveloperRouter {
         ])
     }
 
+    // Helper function to handle Mac screenshot filenames that contain U+202F (narrow no-break space)
+    fn normalize_mac_screenshot_path(&self, path: &Path) -> PathBuf {
+        // Only process if the path has a filename
+        if let Some(filename) = path.file_name().and_then(|f| f.to_str()) {
+            // Check if this matches Mac screenshot pattern:
+            // "Screenshot YYYY-MM-DD at H.MM.SS AM/PM.png"
+            if let Some(captures) = regex::Regex::new(r"^Screenshot \d{4}-\d{2}-\d{2} at \d{1,2}\.\d{2}\.\d{2} (AM|PM)(?: \(\d+\))?\.png$")
+                .ok()
+                .and_then(|re| re.captures(filename))
+            {
+
+                // Get the AM/PM part
+                let meridian = captures.get(1).unwrap().as_str();
+
+                // Find the last space before AM/PM and replace it with U+202F
+                let space_pos = filename.rfind(meridian)
+                    .map(|pos| filename[..pos].trim_end().len())
+                    .unwrap_or(0);
+
+                if space_pos > 0 {
+                    let parent = path.parent().unwrap_or(Path::new(""));
+                    let new_filename = format!(
+                        "{}{}{}",
+                        &filename[..space_pos],
+                        '\u{202F}',
+                        &filename[space_pos+1..]
+                    );
+                    let new_path = parent.join(new_filename);
+
+                    return new_path;
+                }
+            }
+        }
+        path.to_path_buf()
+    }
+
     async fn image_processor(&self, params: Value) -> Result<Vec<Content>, ToolError> {
         let path_str = params
             .get("path")
             .and_then(|v| v.as_str())
             .ok_or_else(|| ToolError::InvalidParameters("Missing 'path' parameter".into()))?;
 
-        let path = self.resolve_path(path_str)?;
+        let path = {
+            let p = self.resolve_path(path_str)?;
+            if cfg!(target_os = "macos") {
+                self.normalize_mac_screenshot_path(&p)
+            } else {
+                p
+            }
+        };
 
         // Check if file is ignored before proceeding
         if self.is_ignored(&path) {