v1.21.4May 30, 2026
Steady Agents & Group Drops
Steady Agents & Group Drops. This release brings Drag Folders Straight Into A Project Group, AI Usage Tracking For OpenCode, Preview HTML In One Click From The Editor and Mission Control Polish.
Download v1.21.4
The download page always has the newest build; installers for this version are on GitHub.
What changed
New features
9- Drag a folder from Finder/Explorer onto a project group in the sidebar and the new project is added directly to that group — no more landing at the end of the list and dragging it in afterwards
- Works on every group surface — group headers, the empty "Drag projects here" placeholder, and on any existing project inside a group
- Live highlight shows which group will receive the folder while you drag, so you can confirm before you drop
- Ungrouped behavior unchanged — dropping in the empty area or on an ungrouped project still adds at the top level
- OpenCode sessions now appear in AI Usage with token counts, costs, and per-model breakdown alongside Claude, Codex, Gemini, and Qwen
- Single-database parsing — OpenCode's shared opencode.db is read once and split into per-session usage records, so switching projects doesn't lose history
- Costs match the price list of the actual model used — bare model IDs are matched against the pricing table the same way Claude is
- A globe button appears in the editor toolbar when the open file is .html or .htm — one click renders it in the built-in browser panel
- Complements the existing right-click "Open in 1DevTool's Browser" option from the file explorer
Improvements
4- Light theme support — the overlay now uses a cool slate backdrop with neutral-tinted card shadows in light mode, so cards stay readable instead of washing out
- Keyboard hint bar at the top shows ← → ↑ ↓ navigate, ↵ open, and esc close so the shortcuts are discoverable the first time you press the grid icon
- Focused card is clearly highlighted — a stronger accent ring + soft glow makes it obvious which project will open on Enter
- Hover-to-focus — moving the mouse over a card now updates the keyboard focus, so mouse and keyboard navigation stay in sync
Bug fixes
3- Fixed MCP server dropping mid-session with "Connection closed" after an AI agent idled for ~10 minutes — long Claude/OpenCode sessions no longer lose access to 1DevTool's MCP tools
- Fixed MCP server failing to start in packaged builds ("Cannot find module 'fast-deep-equal'") — every AI agent that loads the 1DevTool MCP server now connects on first try, and the AI Agent Orchestrator stops showing "Configuration is out of sync"
- Fixed Claude @-mention autocomplete losing your prompt when you opened the input overlay with ⌘I — the overlay now reads the visible prompt directly from the terminal as a fallback, so the "Pick up what you typed?" popup appears even after confirming an @-mention with Enter