macOS: live "Claude is working" indicator + Activity screen

[JacquesDelaigue]

What

Two device features that surface real Claude Code activity (not just quota), driven by Claude Code hooks → ~/.clawdmeter/state.json → the macOS daemon → BLE → firmware.

1. "Claude is working" indicator

• While any session is running, the splash homes to the existing work coding animation (the PWR button still cycles animations; auto-reverts after 5s), and a small work coding badge appears top-left on the Usage screen. The panel stays awake while working.
• Daemon adds a top-level "working" flag; firmware parses it. Backward compatible (old payloads unchanged).

2. Activity screen

• A third screen — tap now cycles Splash → Usage → Activity → Splash.
• A vertical scrolling list of live sessions: each row = project · model · context-window % bar · a Claude-orange dot when that session is running.
• Daemon sends a compact "sessions" array [{p,m,c,w}] (≤5, size-guarded < 480 B); context-% is computed in the hook from each session's transcript usage vs a model→window map.

How

• daemon/clawdmeter_hook.py — hook writing per-session state (adapted from @tobby168's Activity screen: live Claude Code session state from hooks #22; adds context-% computation).
• daemon/claude_usage_daemon.py — read_working() / read_sessions() merged into the payload on a state-file change (pushed within ~5 s); switched to write-with-response (ATT long write) for the larger payload.
• firmware/ — SCREEN_ACTIVITY + scrolling list (ui.cpp), 3-way tap cycle, working-mode (splash.cpp), ActivityData/SessionData (data.h), sessions parse (main.cpp), setMTU(517) + BLE_BUF_SIZE 1024 (ble.cpp), -DLV_USE_FLEX=1.

Scope / caveats

• macOS daemon only. The firmware + hook are platform-agnostic, but the Linux/Windows daemons would need the same working/sessions fields to drive these screens.
• Builds on the hook from Activity screen: live Claude Code session state from hooks #22 (credit @tobby168) — overlap to reconcile if both land.
• Context-% is a best-effort approximation (model→window map + a >200k safety rule; the transcript doesn't log the 1M-context marker).
• Tested on the Waveshare AMOLED-2.16 (flashed + verified live); AMOLED-1.8 compiles clean.

🤖 Generated with Claude Code