v0.20.0

The plugin system reaches its 1.0 contract, per-terminal hibernation is removed for good, and project switching becomes near-instant — the largest release since the project opened up, spanning 179 PRs. Most of the surface-level work is a deep terminal-rendering and project-switch reliability pass; underneath it, the plugin and MCP automation surfaces both grow substantially.

Features

Plugin system (1.0 contract)

• Release-ready authoring toolchain: @daintreehq/plugin-sdk and plugin-testing packages, a plugin-vite preset, and daintree-plugin dev hot-reload (#10485, #10494)
• Manifest contract frozen for 1.0 — experimental_views/experimental_mcpServers promoted to stable views/mcpServers (#10478, #10495)
• Installed plugins run out-of-process in a utility worker with OS-level crash isolation (#10550)
• Fully Promise-returning host API with capability-gated host.process.spawn, host.fs, and host.git (#10540, #10543)
• Just-in-time consent for high-risk capabilities (shell, fs/git writes, agent input), revoked when a plugin updates (#10551, #10555)
• Plugin-contributed agents are fully launchable and drive the working/waiting/completed state UI (#10574, #10601)
• Plugins can decorate worktree file rows and set live panel-title badges (#10568, #10599)
• Native UI prompts mid-command via host.showQuickPick / showInputBox / showConfirm (#10549)
• Plugin MCP servers get a detail subtab (status, last error, stderr, restart) and auto-restart on secret rotation (#10595, #10628)
• Plugin-provided MCP tools route through consent → audit → rate-limit, re-prompting when a tool's danger tier escalates (#10486, #10535)

MCP server

• Forge write operations over MCP — PR create/merge/comment/edit, issue create/close/label, and PR-review approve/request-changes (#10657, #10658, #10659)
• Terminal/agent exit metadata (exit code, signal, timestamps) so a clean finish is distinguishable from a failure (#10642)
• Parsed pass/fail check results on terminal.getStatus from tsc, ESLint, Vitest, and Jest (#10691)
• browser.captureScreenshot returns real image bytes, plus console reads and dev-preview/portal control (#10689, #10692)
• Worktree resource lifecycle and a host-pressure resource-profile snapshot over MCP (#10690)
• Per-terminal and fleet arm/disarm, plus terminal.restart, over MCP tier allowlists (#10687, #10696, #10712)

Agents & presets

• Agent presets carry an optional display title (e.g. "Claude [Z.ai]"), surfaced across the agent button, dropdown, tray, and scope banner (#10740)
• The preset dropdown splits each row — click to launch with that preset, the left gutter sets the worktree default without launching (#10726)
• About Daintree shows the running build architecture (Apple Silicon, Intel, or Rosetta) (#10503)

Performance

Project switching

• Cold switches reveal a themed skeleton in ~150ms instead of freezing on the outgoing project for seconds (#10751, #10760)
• A busy overlay covers slow switches while warm switches stay flash-free, with feedback flipped on before the heavy snapshot/IPC (#10737)
• RAM-scaled warm view cache and workspace-host pool eliminate the evict/respawn churn that froze the main loop when rotating projects (#10760)
• The efficiency profile freezes cached views instead of destroying them, ending cold-start storms on rapid switching (#10748)
• Background projects pause git-status polling, fetches, and PR checks while hidden (#10746)

Terminal & memory

• Faster priority terminal restore via parallel rehydrate, with the on-screen terminal repainting first (#10533, #10534)
• Project hibernation now evicts the cached renderer (~100-500MB) instead of just killing PTYs, while keeping terminals alive (#10796)
• Batched host-log writes and a coalesced worktree-update bus remove multi-second keystroke lag under multi-agent load (#10770)

Bug Fixes

Terminal & rendering

• Removed per-terminal hibernation — backgrounded terminals stay live instead of suspending and resyncing on reveal. This eliminates the recurring agent-TUI corruption (zebra striping, double-spacing, dropped output) across OpenCode, Codex, Gemini, and Claude (#10811)
• Alt-screen TUIs (OpenCode, vim, Gemini CLI) no longer garble on click or reveal — previously only a manual window resize fixed it (#10805)
• Fixed a 60fps WebGL atlas-resync loop that pinned a CPU core and sheared glyphs after a refocus; bumps @xterm/* to 6.1.0-beta.287 (#10798)
• Eliminated DOM-renderer zebra banding for alt-buffer TUIs on HiDPI displays (#10771)
• Hidden streaming agents no longer steal WebGL contexts and drop visible terminals to the slower DOM renderer (#10673)
• Agent terminals no longer return garbled after a project switch-back (#10508, #10637)
• Windows: an invalid ConPTY pid 0 no longer starts process detection or spams warnings (#10791)

Agents

• A crashed agent CLI reports as "exited" instead of getting stuck on "waiting" (#10821)
• Agents no longer stick on "waiting" during long heavy-streaming output (#10666)
• OpenCode resumes its latest session on restart instead of showing a failed-restore banner (#10824, #10825)
• Typing into a backpressure-paused terminal wakes it (#10717)
• Pressing Enter at Claude's workspace-trust prompt no longer spawns a duplicate agent (#10631)

Project views & crash recovery

• The crash-recovery dialog no longer reappears after being resolved on switch-back (#10810)
• A project view that loads the wrong internal page rolls back instead of getting stuck (#10804)
• Fixed the forge status toolbar rendering twice, and a persistent red error line on it, during rapid switching (#10808, #10762)
• Workspace-host OOM crash-loops are detected and surfaced instead of looping silently in "Reconnecting…" (#10733)

Git & forge

• git rebase/merge/cherry-pick/revert --continue works again after the simple-git 3.36 upgrade (#10789)
• Background git-fetch auth failures retry with backoff instead of suspending fetches for the whole repo (#10675)
• Commit search matches commit-hash prefixes, not just message text (#10817)
• Self-assigning an issue during worktree creation reflects immediately in the open-issues dropdown (#10537, #10678)
• Stuck mid-rebase/merge worktrees get an inline abort/continue recovery row (#10716)

Security & privacy

• The external MCP API-key fullToolSurface opt-in no longer bypasses the curated allowlist (#10710)
• Plugin log output is secret-scrubbed before it reaches the log buffer and console mirror (#10781)
• V8 heap snapshots in the logs dir are auto-pruned, clearing previously unbounded backlogs (#10732)

UI & onboarding

• Creating a custom preset no longer hijacks the agent default, and recipe launches now honor the selected preset (#10730, #10725)
• Custom preset colors no longer wrap the agent icon in a near-white tile on dark themes (#10724)
• Toned down two passive notifications and persisted onboarding dismissals across restarts (#10553, #10554)
• Restored drag-to-grid, drag-to-worktree, and reorder on docked panel chips (#10799)
• Diff-viewer and commit-body wrapping fixes in the dropdowns (#10629, #10719)