Cosmos Week 29 Release Notes

Comments on files: comment on Virtual File System files with @mentions, emoji reactions, notifications, deep links, and click-to-open threads.
Pinned experts: pin your most-used experts for quick access, scoped per Space, always discoverable from a dedicated tab.
Automations initial instructions: set initial instructions on an Automation so launched sessions start with the right context.
Jira & Confluence: connect personal Jira and Confluence accounts under Linked Accounts.
GitLab: bulk-connect webhooks with progress, per-group coverage, and paginated repository selection.
Tunnels: filter sessions for active tunnels on the Sessions page.
Session composer: surface available integrations and MCP tools at the composer footer, and view environment details from the in-session chip.

Send or queue messages while an agent is still starting.
Customize your recent session and pinned sessions with filters and display settings.
You can now restore a deleted file from the Virtual File System.
Raised the per-file size limit for the Virtual File System from 1 MB to 4 MiB.
Secret values are hidden by default and can be revealed only when explicitly allowed.

Stopped message loss when refocusing the session tab.
Fixed the command palette (Cmd+K) not opening in the composer and scoped its entity search to the selected Space.
Fixed the environment picker showing "Inaccessible environment" for Space members.
Blocked attachments for text-only models and rendered attached-file previews as chiclets.