diff --git a/crates/automation/src/tools.rs b/crates/automation/src/tools.rs
index 4fff59c07d..3afa408ea6 100644
--- a/crates/automation/src/tools.rs
+++ b/crates/automation/src/tools.rs
@@ -1184,7 +1184,7 @@ pub fn tools() -> Vec<ToolDef> {
                 }),
                 &["doc"],
             )),
-        t("ocr_recognize_files", "Recognize text in multiple files", "Scan & OCR ▸ Recognize text ▸ In multiple files: read every page of each PDF in paths and write the searchable result into folder under the same name (pages that already have text are left alone unless skip_text_pages is false, as in ocr_recognize). Returns, per file, the output path, word count and skipped pages, or the error.")
+        t("ocr_recognize_files", "Recognize text in multiple files", "Scan & OCR ▸ Recognize text ▸ In multiple files: read every page of each PDF in paths and write the searchable result into folder under the same name (pages that already have text are left alone unless skip_text_pages is false, as in ocr_recognize). Two inputs that would write the same output file are refused before anything is read or written. Returns, per file, the output path, word count and skipped pages, or the error.")
             .cmd("ocr.recognize_batch")
             .with(schema(
                 json!({