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Agent Fleet

v0.16.0

Sessions that cannot draw can now generate images, and the pictures land in the conversation. The Zundamon voice runs only while someone is listening instead of around the clock, and Settings gains a Machine tab that says what your workspace is actually running on.

New

Section titled “New”
  • Sessions can generate images. A generate_image tool is offered to agents that have no image generation of their own — Claude, OpenCode and the rest; Codex sessions keep using their built-in one. Each image spends the connected ChatGPT plan’s quota, so it is off by default and turned on per member in Settings > Agents.
  • Generated images appear in the conversation as cards, with a thumbnail you can open full size, instead of a tool trace and a path you had to go looking for. Claude, OpenCode and Copilot sessions show them.
  • The Zundamon voice can be started on demand. On an ECS deployment the VOICEVOX engine is now stood up and shut down by Agent Fleet itself: administrators pick off, always on, or on demand, and on demand starts the engine once read-aloud demand builds up and stops it after nobody has listened for a while. While it is coming up, Polly reads instead, and a “Call Zundamon” button in the read-aloud settings starts it without waiting.
  • Settings has a Machine tab. It shows what your workspace runs on — instance type, architecture, vCPU, memory ceiling — measured from inside the container and shown next to what the deployment declares, with an hour of resource graphs that keep moving even while the workspace is idle. The resource popover in the workspace bar links to it.
  • Ctrl+R searches what you have sent, bash-style, in the mirror’s composer. Matches are shown in the composer itself so a long prompt can be read in full before you take it; Ctrl+R/Ctrl+S walk the matches, Enter puts one in the input without sending, and Esc gives your draft back.
  • Node 26 can be installed from Settings > Toolchains.

Improved

Section titled “Improved”
  • Shared images open as pictures, not as a pane. An image card in “Shared files” opens full size in the lightbox, and the file pane moved to a button in the card’s corner. The lightbox now zooms and pans — wheel, pinch, double-click, and drag while zoomed in.
  • Long conversations stop getting slower to open. Returning to a long Codex session could take seconds every time, because the whole conversation was re-read on each poll; OpenCode transcripts were loading one query per message. Both now read only what is new.
  • A panel of shared images downloads thumbnails, not the full-size originals scaled down in the browser.
  • Node 18 has been end-of-life since April 2025 and is no longer offered in Settings > Toolchains. A workspace that already has it selected is unaffected.

Fixed

Section titled “Fixed”
  • On a phone the workspace bar was wider than the screen, which let the browser zoom the page out — and with the page not at 1:1, every horizontal swipe stopped working, including the edge swipe that opens the left pane. The “restart required” pill made it obvious but was not the cause.
  • A question card lost a half-made answer when you switched tabs. Choosing an option and then going to look at the file or the diff it was about emptied the card on the way back.
  • On a phone, the selection colour chips were hidden behind the browser’s own copy/share menu, which draws above everything a page can put there. They now dock at the bottom of the screen.
  • An agent process that had already died could be reported as running, so the Console showed a session as alive when it was not.

Upgrade notes

Section titled “Upgrade notes”

Nothing to do, unless you run on ECS and want the Zundamon voice: deploy the new cfn/50-tts.yaml stack, then choose the mode in Settings > Admin. Without that stack read-aloud keeps working through Polly exactly as before.

Agent CLI pins: Claude Code 2.1.263, Codex 0.153.4, OpenCode 1.18.29, Copilot 1.0.83, Antigravity 1.1.26, Cursor 2026.09.02, Kiro 2.21.1.