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v1.8.3-beta.2 — A2A Async Communication, Image Context & Search Tools

What's New

Agent-to-Agent (A2A) Async Communication — Beta

  • Three communication modes for send_message_to_agent:
    • notify — fire-and-forget, one-way announcement
    • task_delegate — delegate work and get results back asynchronously via on_message trigger
    • consult — synchronous question-reply (original behaviour)
  • Feature flag: controlled at the tenant level via Company Settings → Company Info → A2A Async toggle (default: OFF)
  • When disabled, the msg_type parameter is hidden from the LLM so agents only see synchronous consult mode
  • Security: chain depth protection (max 3 hops), regex filtering of internal terms, SQL injection prevention
  • Performance: async wake sessions use the agent's own max_tool_rounds setting (default 50)

Multimodal Image Context

  • Base64 image markers are now persisted to the database at write time
  • Chat UI correctly strips [image_data:] markers and renders thumbnails
  • Fixed chat page vertical scrolling (flexbox min-height: 0 constraint)
  • Removed deprecated /agents/:id/chat route

Search Engine Tools

  • New Exa Search tool — AI-powered semantic search with category filtering
  • New standalone search engine tools: DuckDuckGo, Tavily, Google, Bing (each as own tool)

UI Improvements

  • Drag-and-drop file upload across the application
  • Chat sidebar polish: segment control, session items styling
  • Agent-to-agent sessions now visible in the admin "Other Users" tab

Bug Fixes

  • DingTalk org sync rate limiting to prevent API throttling
  • Tool seeder: parameters_schema now correctly included in new tool INSERT
  • Unified msg_type enum references across codebase
  • Docker access port corrected to 3008

v1.8.3-beta.2 — Bug Fixes

A2A Chat History Fixes

  • A2A session now shows both sides of the conversation: when a target agent is woken via notify or task_delegate, its reply is now mirrored into the shared A2A chat session so the full conversation is visible in the admin Other Users tab
  • Removed hardcoded 2-round tool call limit for A2A wake invocations: agents were hitting the limit before completing basic tasks; they now use their own configurable max_tool_rounds setting (default 50)
  • Fixed message loading order: sessions with many messages (e.g. long-running A2A threads) were only showing the oldest 500 messages; now correctly loads the most recent 500

Upgrade Guide

Database migration required. Run alembic upgrade heads to add the a2a_async_enabled column.

Docker Deployment (Recommended)

git pull origin main

# Run database migration
docker exec clawith-backend-1 alembic upgrade heads

# Rebuild and restart
docker compose down && docker compose up -d --build

Source Deployment

git pull origin main

# Run database migration
alembic upgrade heads

# Rebuild frontend
cd frontend && npm install && npm run build
cd ..

# Restart services

Kubernetes (Helm)

helm upgrade clawith helm/clawith/ -f values.yaml
# Run migration job for a2a_async_enabled column

Notes

  • The A2A Async feature is disabled by default. No behaviour changes until explicitly enabled.
  • The a2a_async_enabled column defaults to FALSE, so existing tenants are unaffected.