Features
Chat with @-mention for files, symbols, remote repos
Auto-edit for inline contextual code suggestions
Customizable Prompts to automate tasks
Smart hover summaries (GA) for symbol documentation
Deep Search with auto-compaction and subagent
Shared conversation history tab ('Shared with me')
HackerOne integration for automated security triage
Code completions from LLMs (Claude, GPT, etc.)
Context filters to ignore selected repos
Multiple LLM support (Claude Sonnet 4.6, etc.)
Sourcegraph Search API integration for remote context
Agentic Batch Changes (public beta) for large-scale migrations
MCP server for agent code-graph knowledge
Prebuilt chat components: CopilotChat, CopilotSidebar, CopilotPopup
Headless UI for custom pixel control
Generative UI rendering real React components from agents
Shared state for multi-turn context-aware conversations
Human-in-the-loop workflows for approval/correction
Programmatic control via Inspector for debugging
Built-in agent server with in-process and remote runtimes
Supports A2UI, Open-JSON-UI, and MCP Apps specs (v1.50)
A2A and MCP handshakes for agentic interoperability
Broad backend support: LangGraph, Google ADK, AWS Strands, Mastra, PydanticAI, etc.
Self-hosting and deployment to any runtime
Anonymous telemetry for debugging and usage insights
Full MCP Apps support for user-facing applications (Jan 2026)
LangGraph Deep Agents compatibility (Jan 2026)
OpenTag: open-source Claude-in-Slack alternative (Jun 2026)