diff --git a/packages/coding-agent/src/index.ts b/packages/coding-agent/src/index.ts
index 210b84010..52d8f9b06 100644
--- a/packages/coding-agent/src/index.ts
+++ b/packages/coding-agent/src/index.ts
@@ -415,5 +415,6 @@ export { copyToClipboard } from "./utils/clipboard.ts";
 export { parseFrontmatter, stripFrontmatter } from "./utils/frontmatter.ts";
 export { convertToPng } from "./utils/image-convert.ts";
 export { formatDimensionNote, type ResizedImage, resizeImage } from "./utils/image-resize.ts";
+export { detectSupportedImageMimeTypeFromFile } from "./utils/mime.ts";
 // Shell utilities
 export { getPowerShellConfig, getShellConfig } from "./utils/shell.ts";