Helps discoverability — shows `<fileset>` as the expected argument
when listing skill commands.

Assisted-by: Claude Sonnet 4 via Claude Code

diff --git a/ai/claude/skills/commit/SKILL.md b/ai/claude/skills/commit/SKILL.md
index aa35cc0b..b6c10a94 100644
--- a/ai/claude/skills/commit/SKILL.md
+++ b/ai/claude/skills/commit/SKILL.md
@@ -1,6 +1,7 @@
 ---
 name: commit
 description: Use when the user asks to "commit changes", "commit my work", "/commit", "create a commit", or "jj commit"
+argument-hint: <fileset>
 ---
 
 # Commit Changes