After verifying that the OpenClaw gateway's chat.send WebSocket RPC
accepts an 'attachments' array (confirmed from openclaw/openclaw source
and documentation), implement end-to-end image/file attachment support
for instance chat:
Bridge (openclaw-client.ts):
- chatSendAndWait() now accepts optional `attachments[]` parameter
- Passes attachments to chat.send RPC only when non-empty
Bridge (index.ts):
- /task-async accepts `attachments[]` from request body
- Forwards to chatSendAndWait unchanged
Backend (agent.controller.ts):
- executeInstanceTask() accepts IT0 attachment format
{ base64Data, mediaType, fileName? }
- Converts to OpenClaw format { name, mimeType, media: "data:..." }
- Saves attachments to conversation history via contextService
- Forwards to bridge via bridgeAttachments spread
Flutter (agent_instance_chat_remote_datasource.dart):
- createTask() now includes attachments in POST body when present
Flutter (chat_page.dart):
- Reverted Fix 5 (disabled button) — attachment button fully enabled
in instance mode since the bridge now supports it
Attachment format (OpenClaw wire):
{ name: string, mimeType: string, media: "data:<mime>;base64,<data>" }
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
hailin
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