[Matrix] Phase 1: Core Adapter Implementation

[alacy-centrl]

Overview

Implement the Matrix adapter following the existing adapter pattern (similar to Telegram and Slack adapters).

Tasks

• Install matrix-bot-sdk dependency
• Create packages/opencode-router/src/matrix.ts
• Implement createMatrixAdapter() function
• Add peer ID validation (Matrix room IDs: !id:domain)
• Implement message reception handler
• Implement message sending logic
• Handle Matrix event types (m.room.message, etc.)
• Add error handling and retry logic

Key Features

• Connect to Matrix homeserver using access token
• Receive messages from Matrix rooms
• Send text and media messages
• Support multiple Matrix accounts
• Handle federation and room IDs

Acceptance Criteria

• Adapter compiles without errors
• Can connect to Matrix homeserver
• Receives messages from joined rooms
• Sends messages to specified rooms
• Handles errors gracefully

Estimated Time

3 days

Dependencies

• Issue [Matrix] Phase 1: Configuration Types and Loading #778 (Configuration Types)

Technical Details

• Use matrix-bot-sdk for Matrix protocol
• Room ID format: !abc123:matrix.org
• Media upload/download via Matrix media API
• Sync API for event streaming

See full plan: https://github.com/users/alacy-centrl/projects/2

[alacy-centrl]

Phase 1 core adapter implementation complete ✅

[alacy-centrl]

I apologize for opening these issues in the wrong repository. These Matrix integration issues should have been created in my personal fork. I'm closing this issue and moving it to alacy-centrl#6

Sorry for the confusion!