opencode/MISSING_API_FEATURES.md

Missing API Features for TypeScript Backend

This document tracks features that need to be implemented in the TypeScript backend to support the existing Go TUI functionality.

Current API Endpoints Available

• /session_create - Create a new session
• /session_share - Share a session
• /session_messages - Get messages for a session
• /session_list - List all sessions
• /session_chat - Send a chat message (with SSE streaming response)
• /event - SSE event stream (currently only supports storage.write events)

Missing Features

Session Management

• Session deletion
• Session renaming/updating title
• Session compaction/summarization
• Session export/import

Message Management

• Message editing
• Message deletion
• Message retrieval by ID
• Message search/filtering
• System messages support

Agent/LLM Features

• Model selection/switching
• Tool invocation support
• Agent state management (busy/idle)
• Cancel ongoing generation
• Token usage tracking per message
• Custom prompts/system messages

File/Attachment Support

• File attachments in messages
• Image attachments
• Code snippet attachments
• Attachment storage/retrieval

LSP Integration

• LSP server discovery
• LSP diagnostics
• LSP code actions
• LSP hover information
• LSP references
• LSP workspace symbols

Configuration

• Model configuration
• API key management
• Theme preferences
• User preferences storage

Permissions

• File system access permissions
• Command execution permissions
• Network access permissions

Status/Notifications

• Status message broadcasting
• Error notifications
• Progress indicators

History

• Command history
• Search history
• Recent files/folders

Events (SSE)

Currently only storage.write is supported. Missing events:

• session.created
• session.updated
• session.deleted
• message.created
• message.updated
• message.deleted
• agent.status (busy/idle)
• tool.invoked
• tool.result
• error
• status (info/warning/error messages)
• lsp.diagnostics
• permission.requested
• permission.granted
• permission.denied

Database/Storage

• Message persistence
• Session persistence
• File tracking
• Log storage

Pubsub/Real-time Updates

• Publish message events when messages are created/updated via API
• Agent busy/idle status updates

Misc

• Health check endpoint
• Version endpoint
• Metrics/telemetry