Port Antigravity payload enhancements from CLIProxyAPI v6.6.89:
- Add ANTIGRAVITY_SYSTEM_INSTRUCTION with agent identity/guidelines
- Inject systemInstruction with role 'user' for Antigravity requests
- Add requestType: 'agent' to wrapped request body
- Update userAgent to 'antigravity' for Antigravity requests
This fixes RESOURCE_EXHAUSTED (429) errors when using Antigravity.
Adapted from: https://github.com/NoeFabris/opencode-antigravity-auth/pull/137
Reference: https://github.com/router-for-me/CLIProxyAPI/commit/67985d8
Previously, startTypingLoop would return early if the typing timer was
already running, which meant the TTL would never get refreshed during
long tool executions. This caused the typing indicator to stop after
2 minutes even if tools were still running.
Now we refresh the TTL at the start of startTypingLoop, before the
early-return checks. This keeps typing alive during long operations.
- Default: sendAudio (file with metadata) - preserves old behavior
- Opt-in: [[audio_as_voice]] tag for voice bubble
This is non-breaking - existing integrations keep working.
Allow agents to specify audio mode via inline tag:
- Default: voice bubble (sendVoice)
- [[audio_as_file]]: audio file with metadata (sendAudio)
The tag is stripped from the final message text.
Example agent response:
Here's a podcast episode! [[audio_as_file]]
MEDIA:https://example.com/episode.mp3
- Add audioAsVoice option to ReplyPayload type
- Update bot.ts to use sendVoice by default for audio (voice bubble)
- When audioAsVoice is false, use sendAudio (file with metadata)
This allows agents to control voice vs file mode via ReplyPayload.
