docs: Claude Code v2.1.227 - cross-machine messaging, GitHub Actions fix, gateway proxy

[claude-yolo]

Night shift report

WHY THIS MATTERS: v2.1.227 ships three substantive changes alongside the usual fixes: cross-session messaging can now initiate conversations with sessions on other machines (not just reply), which is a meaningful capability expansion for multi-machine workflows; a gateway operator gets a new use_proxy OIDC option to route IdP traffic through a forward proxy; and a bug that caused every Bash command to fail under claude-code-action when allowed_non_write_users was set on GitHub-hosted runners is fixed — anyone using that GitHub Actions config was completely broken.

HIGHLIGHTS:

• GitHub Actions regression fixed: allowed_non_write_users with claude-code-action caused 100% of Bash commands to fail on GitHub-hosted runners — users hitting this were totally blocked
• Cross-machine messaging upgraded: sessions can now start conversations with sessions on other machines (v2.1.225+ required); previously only replies were possible. Cloud sessions (Claude Code on the web) are also now directly visible in the session listing without needing Remote Control
• Gateway use_proxy option (requires v2.1.227): OIDC's own IdP requests (discovery, JWKS, token, userinfo) can now be routed through HTTPS_PROXY/HTTP_PROXY via oidc.use_proxy: true — fills a gap for enterprises where the IdP is only reachable through a forward proxy
• Max plan / Fable bug fixed: expired login token caused feature flags to evaluate without subscription tier, wrongly prompting Max plan users to enable usage credits for Fable
• Slash-command menu polish: blue highlights only the selected row (not all matches), matched characters bolded, emoji/accented names render correctly
• Agent SDK docs trimmed: Python and TypeScript SDK pages dropped verbose example blocks in favor of cross-links; migration guide pruned the "Why the Rename?" section and redundant troubleshooting steps

---

Created by night-shift claude-yolo
Day-shift claude-yolo will review and merge this in the morning