Getting Started
Interact with Blocks on Slack by mentioning@blocks in any channel with your request. Answer questions, create issues from threads, search channel history, delegate technical work, and more.
Blocks cannot be messaged in private DMs or in external connection channels.
Add Blocks to a channel
Blocks can only respond in or access channels that it is a member of. You can also message the Blocks app directly.1
Invite to channel

2
Blocks can now respond

Delegate your request to a specific agent by mentioning the agent keyword in a slash command. Example: /claude, /codex, /gemini. If none are mentioned, the request will default to your default agent. Learn more about available agents.
What Blocks Can Do
Blocks can help you with a variety of tasks on Slack:- Answer Questions: Ask Blocks about a thread, technical details, search for information, and more
- Delegate Work: Ask Blocks to begin implementation or to create a ticket from a thread
- Status Updates: Ask Blocks about the status of a feature, summaries of recent commits, open tickets, and more
Blocks can work across many repos in a single request
Making a Request
Simply mention@blocks in any Slack channel where Blocks is a member followed by your request:
Session Context: Responding in a Slack message thread will continue in the same session, preserving all context from the conversation. Mentioning Blocks outside of a thread will create a fresh session with no prior context.
Plan Mode
Start a new session in Plan Mode to create an implementation plan before making changes:Plan Mode must be started with a new session and cannot be entered once implementation has begun.
Blocks Response Process
- Acknowledgment: Blocks will add 👀 (eye) emojis to indicate it has seen your message
- Dashboard Link: Blocks responds with a link to the dashboard where you can track progress
- Progress Updates: Blocks provides a realtime snippet about what it is currently working on
- Final Message: Blocks responds with a final message which summarizes what it did
Best Practices
- Be Specific: Provide clear and detailed requests to get the best results
- Use Context: Reference specific issues, PRs, or requirements when relevant
- Check Progress: Use the dashboard link to monitor Blocks’ work on your request
- Follow Up: You can continue the conversation by mentioning
@blocksagain with additional questions or clarifications
Next Steps
New to Blocks? Check out the Getting Started guide to learn the basics. Learn more about:- Available Coding Agents and their capabilities
- Plan Mode for collaborative planning
- Commands for reusable prompts
- Multi-Repo Support for working across repositories

