v0.4.0

Release Notes: v0.4.0

Since: v0.3.4 (2025-12-12)
Commits: 53 | Files: 58 | Changes: +7,314 / -116

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✨ New Features

🔐 Antigravity Auth (Google Gemini Support)

Built-in OAuth authentication plugin for Google Gemini models.

{ "plugin": ["oh-my-opencode", "oh-my-opencode/google-auth"] }

• OAuth 2.0 with dynamic port allocation
• True SSE Streaming implementation
• Thought Signature - multi-turn conversation tracking
• Request/Response transformation (OpenAI ↔ Gemini)
• Tools + Extended Thinking support

🚀 Background Agent System

Asynchronous task execution system.

• background_task / background_output / background_cancel tools
• Auto-completion notification to main session
• Memory-only persistence

📜 Rules Injector

Support for .claude/rules/ and .cursor/rules/ directories.

• Frontmatter globs pattern matching
• alwaysApply: true option
• .md and .mdc file support

🔄 Auto Update Checker

Automatic plugin version checking with update notifications.

🤖 call_omo_agent

Subagent orchestration tool for spawning explore and librarian agents.

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🔧 Improvements

• anthropic-auto-compact: Exponential backoff retry mechanism
• context-window-monitor: Fixed token calculation method
• session-recovery: Handle empty messages + API/Storage index mismatch recovery

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🐛 Bug Fixes

• antigravity: Use loadCodeAssist project ID
• antigravity: Improve streaming retry logic
• background-agent: Multiple notification bug fixes (17 commits)

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♻️ Refactoring

• Remove opencode-openai-codex-auth dependency
• Rename omo_task → call_omo_agent
• Unify background_result/status → background_output

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📚 Documentation

• Add Background Task section
• Improve authentication setup guide with detailed provider instructions