openclaw - 💡(How to fix) Fix [Feature Request] Support image/media files between agents via sessions_send [1 participants]

Feature Request: Support image/media files between agents via sessions_send

Background

Currently sessions_send only supports plain text, making it impossible to send images directly between agents (e.g., main agent <-> reviewer agent). This forces teams to use third-party image hosts as a workaround.

Requested Capabilities

1. sessions_send should accept local file paths via a --media parameter (similar to openclaw message send)
2. When pushing images between agents, the system should automatically send via the bot's native API (e.g., QQ C2C Push) rather than degrading to text-only
3. Support common image types: PNG, JPG, GIF, WebP, etc.
4. Prefer native platform media sending (QQ/WeChat/Telegram) over HTTP link fallbacks

Example Use Cases

• Main agent generates a Cacti/Zabbix screenshot and pushes it directly to a reviewer agent for approval
• Reviewer agent returns the annotated image back to the main agent
• Cron jobs automatically send error screenshots via push notification

Priority

Medium-High

Additional Context

This would align sessions_send parity with openclaw message send --media, which already supports image upload via chunked upload to platform COS (for QQ). The core bottleneck is in the inter-agent routing layer, not the platform-specific sending layer.