Mosaic 0.1.3

[0.1.3] - 2026-05-12

Added

• Pane drag & rearrange — grab a pane by its header and drag it to
  reorganize the workspace layout. Drop targets split or swap panes within the
  tile tree, so you can recompose a workspace without tearing it down.

Changed

• Shell panes now ignore the double-Ctrl-C "close pane" shortcut. Both
  Ctrl-Cs are forwarded to the running process, so hammering Ctrl-C kills a
  stubborn command instead of closing the pane. Provider/agent sessions still
  close on a double Ctrl-C.
• Vendored libghostty: the Last login: … banner is now always suppressed
  when a new shell pane starts.

Fixed

• Control-key combinations in shell panes are now encoded the way Ghostty's
  native macOS app does: Ctrl-C reaches the shell as SIGINT, and other
  control sequences (Ctrl-D, Ctrl-Z, Ctrl-\, …) behave correctly. The
  key event is built with the right consumed_mods, text payload, and
  unshifted codepoint instead of the previous private-use-area filter.
• The session-count badge on each workspace in the rail no longer counts
  archived sessions — those live under the Sessions panel's "Archived"
  section.

Mosaic 0.1.2

Mosaic v0.1.2

Added

• Pi (pi.dev) is now a supported provider, joining Claude Code,
  OpenCode, Gemini, and Codex. Detection (pi --version), spawn,
  resume by session id, and full session listing — local and remote
  over SSH. Pi sits between OpenCode and Gemini in the new-session
  dropup, AddWorkspace cards, and Settings → Providers.
• Live model picker for Pi in Settings → Providers, populated from
  pi --list-models (~70+ models). Type to filter; the field accepts
  any provider/model notation Pi understands, including the
  :thinking suffix (e.g. sonnet:high).
• Keychain-SSH setup helper for remote workspaces. When a remote
  workspace can't authenticate, an inline banner appears above the
  session list with a "Set up Keychain SSH →" button. The guided
  modal:
  • Idempotently appends AddKeysToAgent yes / UseKeychain yes to
    ~/.ssh/config (skips if already configured).
  • Detects private keys under ~/.ssh/ and lets you pick which to
    add. Already-loaded keys are flagged so you don't re-add them.
  • Runs ssh-add --apple-use-keychain per selected key. macOS shows
    its native passphrase dialog; the passphrase is stored in
    Keychain. From then on, ssh (interactive panes AND background
    polls) unlocks your key automatically — including across reboots.
  • Mosaic never sees or stores your passphrases. Apple's Keychain
    holds them, ssh-agent retrieves them.
• Remote-host status banners: when a remote workspace's SSH probe
  fails, the panel surfaces what kind of failure it is — needs auth
  (orange, fixable via Keychain SSH), host key changed (red, run
  ssh user@host once in Terminal to inspect), unreachable (gray,
  network/VPN issue).

Changed

• First-connect SSH no longer prompts for yes/no in the pane.
  Both the session-discovery probe and interactive pane spawns now use
  StrictHostKeyChecking=accept-new, which silently adds new hosts
  to known_hosts on first connect. Changed keys for already-known
  hosts still fail loudly so the host-key banner can warn you.
• Settings → About version badge now reads 0.1.2.

Fixed

• Pi's --list-models writes its table to stderr when stdout is
  piped (it auto-detects TTY vs. pipe and routes "human output"
  away from a captured stdout). The introspection parser now reads
  whichever channel actually has the table — fixes "introspection
  failed" on the Pi row in Settings → Providers.

Notes

• No data migration required. v0.1.1 → v0.1.2 carries over all
  workspaces, tab state, sessions, and settings.
• Universal binary as before — runs on Apple Silicon and Intel Macs
  from a single DMG.

Install

1. Download Mosaic_0.1.2_universal.dmg below.
2. Open the DMG, drag Mosaic into Applications (replace the
   existing copy if you have v0.1.1 or v0.1.0).
3. Launch normally — the macOS Gatekeeper trust granted to a previous
   version carries over.

Bug reports & feature requests

The Issues tab is the right place for both.

Mosaic 0.1.1

Mosaic v0.1.1 — bug fix

Fixed

• Restored multi-pane tabs lose their session pane on app restart.
  When a tab had a provider session pane (Claude / OpenCode / Gemini /
  Codex) split with one or more shell panes, restarting the app would
  bring the tab back with only the shells. The session pane was being
  spawned during state restore, then immediately torn down by the
  exit-poller because libghostty hadn't finished attaching the child
  process yet. Added a 2s grace period to the poller so freshly-spawned
  panes survive the startup window.

Notes

• No changes to provider integrations, layout persistence, or UI
  behavior — purely an app-startup robustness fix.
• Existing v0.1.0 installs can update by replacing the app in
  /Applications with this version's .app (no settings or session
  data is lost).

Install

1. Download Mosaic_0.1.1_universal.dmg below.
2. Open the DMG, drag Mosaic into Applications (replace the
   existing copy if you have v0.1.0).
3. Launch normally — the macOS Gatekeeper trust you granted to v0.1.0
   carries over to this update; you shouldn't see the warning again.

Bug reports & feature requests

The Issues tab is the right place for both.