Alter Modes: Control Your Context
Eternel sunshine of the spotless mind
Hey everyone,
Three weeks ago, we shipped Code Runner, the execution engine that makes anything possible.
Last week, we showed you Plan Mode, how to think before you act.
Today, we're introducing Alter Mode, the missing piece that ties it all together.
Why Alter Mode Matters
Here's the problem most of us face: your work isn't one thing. You're not a single mode of operation. You're a founder doing finance reviews. You're a student jumping between classes. You're a professional context-switching between projects and personal tasks.
Each of these demands different tools, different instructions, different contexts.
Alter Mode solves this by letting you create custom modes linked to workspaces. Enable finance mode? Alter switches your entire workspace, your tools, your system prompt, everything, to that context.
It's not a cosmetic change. It's about controlling your environment so you can focus on the work.
How It Works
- Create a new action in the Action Editor
- Attach a workspace (optional)
- Enable the mode → Alter automatically switches workspaces, tools, and instructions
- Work in a controlled environment with only what you need

In Alter Hub, use Maj+Tab to switch between modesThink of it as having separate desks for separate parts of your life. When you sit at the finance desk, you get the finance files, finance tools, finance context. No clutter. No distraction.
Real examples:
- Finance mode for expense reviews and cash flow
- Personal vs. Professional modes (clear separation of tools and access)
- Student modes (one per topic or class)
- Project-specific modes with dedicated workflows
Performance & Stability You'll Feel
We also rebuilt our conversation architecture from the ground up:
- 90% memory reduction in chat handling
- Faster context switching and window management
- Better transcript editing (transcript-first flow, double-click rename, multi-select delete with
cmd+backspace) - Improved sidebar performance and hub refresh reliability
- New documentation site: https://docs.alterhq.com with automatic sync for always-current docs within Alter.
The Bigger Picture
We're building a platform where:
- Plan Mode helps you think strategically
- Code Runner gives you unlimited execution power
- Alter Mode keeps you organized across contexts
This is the operating system for your workday. Not a tool. A platform.
See you next week.
Olivier & Samuel
Full Changelog
New Features & Enhancements
- Alter Mode + Workspaces: Introduced custom modes with automatic workspace-follow behavior for context-controlled environments
- Hub Productivity: Added transcript-first editing flow, multi-select delete (
cmd+backspace), double-click rename in transcript view, and significantly improved sidebar render performance - Conversation & Chat UX: Rebuilt chat architecture with 90% memory reduction and added command-based dragging for the floating chat window
- Database: Chats now stored unencrypted for faster performance while remaining local to your device
- Flow Engine: Enhanced summarization step to surface links and IDs likely to be used in future turns
- Voice & Meetings Controls: Added recording input-device selection and transcript export to user-defined folders
- Action Editor & Scheduling: New layout in action editor plus schedule trigger to run actions on new transcripts
- Documentation: Launched https://docs.alterhq.com with automatic
alter-docsskill updates from the public GitHub repository - Help Experience: Added one-click Help chat entry in the menu
Bug Fixes & Stability
- Sandbox Runtime Stability: New container with relaxed permissions for apt-get library installation and improved library persistence
- Voice & Recording: Fixed noop notifications on recording cancellation
- Tool Calls: New test suites and recovery system for malformed tool calls
- Hub Refresh: Fixed transcripts not appearing immediately after creation and aligned refresh behavior across controls
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