diff --git a/.changeset/fix-complexity-prompt-json-output.md b/.changeset/fix-complexity-prompt-json-output.md
new file mode 100644
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+++ b/.changeset/fix-complexity-prompt-json-output.md
@@ -0,0 +1,5 @@
+---
+"@task-master/cli": patch
+---
+
+Fix complexity analysis prompt to ensure consistent JSON output format