release: v2.31.0

[brizz-bot]

Release v2.31.0

Merging this PR will trigger the release pipeline.

Changelog

Added

• Prompt fleet add — fleet add [path] -p "<task>" now starts the session already working on it, the same as fleet worktree -p. -p - reads stdin, --agent and --account pick the agent and Claude subscription, and the path defaults to the current directory.
• Pick the model per session — fleet add and fleet worktree now take --model and --effort, so a session can start on opus at xhigh without touching your defaults. --effort is Claude and Codex only; OpenCode has no equivalent flag, so fleet tells you instead of dropping it silently.

Improved

• Base branch autocomplete — the w dialog's Base branch field now suggests your branches. ↓ walks them, ⏎ picks one, tab moves to the next field.

Fixed

• Question prompts stay waiting. A session parked on a single-question AskUserQuestion dialog no longer flips to running — and no longer flaps between the two as you arrow between options.
• Scrolling after detach. Attaching to a session used to leave your terminal sending mouse events to fleet, so the next scroll pinned it at 250% CPU until you stopped. Detaching now puts the terminal back.
• fleet add no longer strands an upgrade — running it before any other command could leave your old brizz-code sessions and settings unreachable. They now carry over as they should.
• Scrolling no longer pegs the CPU. fleet put your terminal into mouse-reporting mode but never handled a mouse event, so a trackpad scroll over the TUI fired ~300 ignored redraws a second and held fleet at 220% CPU until you stopped. Drag-select now works without holding a modifier.
• Escaped prompts recover. You can press Esc on a permission prompt and start typing a different instruction without the session staying stuck on waiting.
• Finished sessions stay finished. Your session no longer sticks on waiting because its own output quoted a permission prompt — a numbered menu, or n to add notes and Esc to cancel in a sentence, read as a live prompt until the text scrolled away.
• Countdown survives zero. A spent account used to drop its reset countdown at the moment it hit zero, leaving a bare red 100%. It now reads 100%(now) and refreshes in ~2s instead of up to 3 minutes.

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Created by /ship. Auto-updates when master changes. Merge to release.

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[Copilot]

Pull request overview

Release PR for v2.31.0 that rolls the accumulated changelog fragments into CHANGELOG.md and removes the now-consumed unreleased fragment files, so merging triggers the release pipeline.

Changes:

• Adds a new ## [2.31.0] - 2026-08-25 section to CHANGELOG.md with Added/Improved/Fixed entries.
• Updates the [Unreleased] compare link to start from v2.31.0 and adds the [2.31.0] reference link.
• Deletes the individual changelog/unreleased/*.md fragments that have been included in the release notes.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
changelog/unreleased/quota-reset-countdown.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/prose-footer-false-waiting.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/nbsp-prompt-separator.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/mouse-repaint-storm.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/launch-model-and-effort.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/fleet-add-session-flags.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/fleet-add-migration-and-logs.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/base-branch-autocomplete.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/attach-restores-mouse-mode.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
changelog/unreleased/askuserquestion-waiting-status.md	Removes consumed changelog fragment as part of the v2.31.0 release rollup.
CHANGELOG.md	Adds the v2.31.0 release notes section and updates link references accordingly.

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