Panes

A live plan Claude posts and keeps current: progress above the prompt, the full checklist and its history in a pane.

Search this project's past sessions: /recall for you (attach an old exchange to your next prompt), a tool for Claude to look up earlier decisions.

Works through a Markdown checklist item by item: one prompt per item, an optional check command, the box ticked when it passes.

Splits a task into independent parts, runs them as parallel subagents you launch and watch live, then hands their results back for integration.

A quick second pair of eyes after edits: reviews the turn's diff in the background and offers to fix what it finds.

Runs your project's checks after Claude edits, shows pass/fail above the prompt, and closes the loop with one-press (or automatic, bounded) fixes.

A little game layer: 32 achievements for how you use Claude Code, with lifetime progress and a /achievements pane.

Something to do during long turns: /snake and /2048 in a pane, with high scores and a nudge when Claude is done.

Jev (TypeSafe's System One model) as Claude's instant co-processor: bulk filter/classify/rank/semantic-grep tools, risk notes under permission dialogs, a check on unverified 'it passes' claims, and optional per-prompt effort.

Reflexes: short read-only requests (git status, diff stat, recent commits, cost, context) answered locally in an Express pane, no model turn.

A commit gate that reads the staged diff in a blink: Jev flags debug output, commented-out code, TODOs, machine paths, secrets and off-message changes before Claude's git commit runs.

Catches tests being weakened to make them pass: every test-file edit is judged by Jev in a few hundred ms against what you asked for.

Compaction without amnesia: archives the full transcript before each compaction and tells the summarizer to keep paths, decisions, preferences, TODOs and working commands.

Git at a glance and in reach: a branch/changes readout, a /git pane to diff, stage, revert and commit, and Conventional Commit messages written by haiku.

Switchable working styles (teach, terse, pair, review, tdd, explore, ship, or your own) applied to every prompt you send.

A side conversation with haiku or sonnet in a pane, kept out of Claude's context: attach Claude's last answer, the diff, the plan or a file on demand, then send the answer or a summary to the prompt box.

Context-window gauge: a fill bar in the readout, toasts as it fills, a /ctx breakdown pane with Compact now, and optional auto-compaction between turns.

Spend tracking across sessions: session and today's cost in the readout, daily and weekly budgets with toasts and an optional hard stop, and a /spend pane.

Subscription rate limits at a glance: each window and its reset in the readout, toasts at 75% and 90% and when your pace beats the reset, and a /limits pane.

Every subagent, live: a /subagents pane with status, model, elapsed time, steps, tokens, last tool and answer, plus a band while any run.

Tool latency: times every tool call, shows a live timer for slow ones, and a /stopwatch pane with per-tool averages, p95, max and the slowest calls.

A receipt for every turn: tools, tokens, cache hits, estimated cost and lines changed, on the turn's closing line (or in the transcript), with a /receipts pane.

A /dashboard pane charting this session's turns (prompt tokens by cache kind, hit rate, cost) and your last 14 days of spend.

Pin selected text or Claude's last response to a side pane that stays visible while the conversation scrolls on