feat: update tag workflow

src/ui/editFrontmatterField.ts

@@ -343,18 +343,18 @@ export async function runEditTaskTags(
 		catalogSet.add(tag);
 	}
 
-	const ok = await applyTags(document, selected);
-	if (ok) {
-		void vscode.window.showInformationMessage(
-			selected.length ? `Tags: ${selected.join(", ")}` : "Tags cleared",
-		);
-	}
+	await applyTags(document, selected);
 }
 
-/** Add unknown task tags into the task-folder config.yml. */
+/**
+ * Add tag(s) to task-folder config.yml.
+ * Prefer `tagArg` from Code Action on an unknown-tag warning.
+ * Without tag: multi-select remaining unknown tags from the task.
+ */
 export async function runAddTagToProject(
 	deps: FrontmatterEditDeps,
 	uriArg?: string,
+	tagArg?: string,
 ): Promise<void> {
 	const document = await resolveDocument(uriArg);
 	if (!document) {
@@ -372,6 +372,18 @@ export async function runAddTagToProject(
 		return;
 	}
 
+	const single = normalizeTag(tagArg ?? "");
+	if (single) {
+		const result = await addProjectTag(deps.fs, {
+			folderPath: folder,
+			tag: single,
+		});
+		if (result.isErr()) {
+			presentError(result.error);
+		}
+		return;
+	}
+
 	const loaded = await loadProjectConfig(deps.fs, folder);
 	if (loaded.isErr()) {
 		presentError(loaded.error);
@@ -383,9 +395,6 @@ export async function runAddTagToProject(
 	const unknown = current.filter((tag) => !known.has(tag));
 
 	if (unknown.length === 0) {
-		void vscode.window.showInformationMessage(
-			"All task tags are already in project config",
-		);
 		return;
 	}
 
@@ -412,8 +421,4 @@ export async function runAddTagToProject(
 			return;
 		}
 	}
-
-	void vscode.window.showInformationMessage(
-		`Added to project config: ${picked.map((p) => p.tag).join(", ")}`,
-	);
 }