React error #31 when using skills with argument-hint frontmatter

[Svishnum]

Description

Using a skill with an argument-hint field in the YAML frontmatter causes a React crash when typing the slash command (e.g., /career-coach).

Error

ERROR Minified React error #31; visit https://react.dev/errors/31?args[]=object%20with%20keys%20%7Btopic%7D

"Objects are not valid as a React child" — the UI fails to render the slash command preview.

Steps to Reproduce

1. Create a skill with argument-hint in the frontmatter:

   ---
   name: my-skill
   description: Some skill
   argument-hint: [topic: foo | bar | baz]
   ---

2. Type /my-skill in the Claude Code input
3. React error EPIPE Crash When Running Claude Code in Python Project Directory #31 crashes the UI

Expected Behavior

The argument hint should render as helper text in the autocomplete dropdown, or at minimum be ignored without crashing.

Workaround

Remove the argument-hint line from skill frontmatter. The skill continues to work normally without it.

Environment

• Claude Code v3.13.11
• macOS Darwin 25.2.0

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] argument-hint YAML frontmatter with brackets causes React error #31 and unrecoverable TUI hang #22161
2. React crash when command frontmatter argument-hint contains YAML array syntax #16990
3. [BUG] Slash command autocomplete: filtering stuck, wrong command executes, crash on mid-sentence / (v2.1.41) #25477

This issue will be automatically closed as a duplicate in 3 days.

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🤖 Generated with Claude Code

[github-actions]

This issue has been automatically closed as a duplicate of #22161.

If this is incorrect, please re-open this issue or create a new one.

🤖 Generated with Claude Code

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.