rune v0.5.4 Multi-agent interoperability. - AGENTS.md generated on sync with XML skill metadata (agentskills.io format). Parsed by Cursor, Windsurf, Copilot, Aider, and other agent editors. - .agent/skills/ symlink to .claude/skills/ for non-Claude agent discovery. - Fix: push new directory-style skills to registry correctly. - Pipeline component v2.3.0.