v1.6.4

Highlights

• Adds the xai-oauth provider lane for SuperGrok/X Premium OAuth while keeping the existing API-key xai lane separate.
• Routes xai-oauth:* models through xAI Responses API with encrypted token storage, refresh, status, logout, browser login, and device/no-browser login flows.
• Improves $anti Claude/Grok collaboration with panel --collab claude-grok and workflow claude-grok.
• Hardens broad $anti Opus/Sonnet review and planning calls with conservative chunking, clearer retry diagnostics, and bounded backend timeout metadata.
• Keeps Codex config activation safe: provider-block setup remains separate from changing the active model/provider unless explicitly requested.

Verification

• Local python3 -m pytest -q: 443 passed, 143 subtests passed.
• Local compileall, git diff --check, installed Anti skill verification, temp-dir build, and Twine checks passed.
• PR #15 CI passed on Ubuntu Python 3.10/3.11/3.12, Windows Python 3.12, and package jobs.
• Main CI run 28988481859 passed.
• Tag CI run 28988523852 passed.
• Publish workflow run 28988523818 published codex-antigravity-auth==1.6.4 to PyPI through Trusted Publishing.

Non-claims

• No real ~/.codex/config.toml mutation was performed during release.
• Live backend availability still depends on the user's configured Google/xAI/BYOK credentials and provider-side entitlements.