Individual skill

react19-source-patterns

Apply React 19 source-file migration patterns for root APIs, hydration, unmounting, findDOMNode, forwardRef, defaultProps, useRef initial values, legacy context, string refs, propTypes comments, and unused React imports. Use this skill when fixing React 19 source migration issues.

harness/claude-code/plugins/react19-upgrade/skills/react19-source-patterns/SKILL.md

Source commit 1672ec1d9bb3181ab61cb96002688c6a3624fc48

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

Yes

Repository scan complete

No

Skill scan complete

No

Observed behavior

Network or broad shell

Last checked

Nov 7, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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