Add compatibility metadata for gh and YouTrack skills

.claude/skills/create-pr/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: create-pr
 description: Stage, commit, push, and open a GitHub PR following project conventions. Use when code is ready to ship — after tests pass, code review, and architecture review are done.
+compatibility: gh must be installed and authenticated.
 ---
 
 # Create PR

.claude/skills/make-yt-issue/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: make-yt-issue
 description: Ensure a YouTrack issue exists before starting work. Use at the start of any task when the user has not provided a ticket ID, when you need to verify a ticket exists, when the user asks to create a ticket, or before starting untracked work.
+compatibility: YouTrack MCP must be configured and available.
 ---
 
 # Ensure YouTrack Issue

.claude/skills/update-pr/SKILL.md

@@ -1,6 +1,7 @@
 ---
 name: update-pr
 description: Stage, commit, and push follow-up changes to an existing feature branch or PR. Use for quick iterations — after addressing review feedback, fixing a bug on the branch, or adding incremental changes that don't need a new PR.
+compatibility: gh must be installed and authenticated.
 ---
 
 # Update PR