David Heinemeier HanssonandClaude Opus 5
39936d2982
The widget hid itself well enough that nobody found it: it only ever appeared if you knew the id and ran `omarchy bar plugin add`, since it was in neither the shipped layout nor any migration. Defaulting it on costs nothing on machines that don't use it. Panel.qml is `visible: providers.length > 0`, and Main.qml only counts a provider that is enabled and has actually recorded prompts, sessions, active days, or a rate limit. A box that has never run Claude Code or Codex draws an empty bar item, and the icon arrives on its own at the first scan that finds usage — which is the behavior the widget already advertised. The migration skips any config that already lists the widget in any section, so a curated bar keeps its own placement rather than gaining a second copy. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
102 lines
4.5 KiB
Markdown
102 lines
4.5 KiB
Markdown
# Model usage
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One bar icon and one panel for every AI coding subscription on the machine.
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`Panel.qml` owns the bar button and the popup; `Main.qml` owns provider
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fan-out and the optional cross-device aggregation; `providers/` holds one
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adapter per subscription.
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## Panel
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- **Hero** — the mark, the tool, and the plan it runs on ("Max 20x", "Pro").
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Auth and endpoint problems replace the plan line and repeat in a card.
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- **Subscription switch** — one chip per enabled provider (`h`/`l` or click).
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It appears only when more than one provider is enabled.
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- **Limits** — a meter per window (session, weekly). The notch on the meter
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marks where an evenly paced window would have you right now, so the gap
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between the fill and the notch is the whole story: fill behind the notch
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means budget in reserve, fill past it means you are burning faster than
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the clock and the row says when it runs out.
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- **Usage this week** — one row per day for the last week: day, bar, tokens, with today
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bolded at the bottom. Hover today for its prompt and session count.
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- **Usage by model** — total tokens and active days in the header, then
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tokens per model with the bar behind each row scaled to the heaviest model,
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the same way the weekly chart scales to its busiest day. Hover for the
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input / output / cache split.
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A subscription appears only when it is enabled in settings and has actually
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recorded usage — on this machine or on a synced one. With one such provider
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there is no switch row at all; with none, the module leaves the bar entirely
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rather than sitting there with nothing to say. A CLI installed mid-session
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shows up at the next refresh, so nothing polls the disk waiting for it.
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That self-hiding is why the widget ships in the default bar layout: a machine
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that has never run Claude Code or Codex draws nothing, and the icon arrives on
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its own the first time a scan finds usage. Drop it with
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`omarchy bar plugin remove omarchy.model-usage`.
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## Providers
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| Provider | Limits | Local stats |
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|---|---|---|
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| `claude` | Anthropic's OAuth usage endpoint (5-hour session + 7-day weekly) | `~/.claude/projects` scanned by `scripts/claude_usage_scanner.py`, plus `stats-cache.json` and `history.jsonl` |
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| `codex` | `scripts/codex_usage_scanner.py` reading the Codex CLI state | the same scanner |
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Claude limits need a signed-in CLI; without credentials the panel says so and
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falls back to local stats only.
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## Interactions
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- Bar icon: left = panel, right = refresh, middle = next subscription.
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- Panel: `h`/`l` switch subscription, `j`/`k` scroll, `r` or Enter refresh,
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Tab moves to the neighboring bar panel, Esc closes.
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- IPC: `omarchy-shell omarchy.model-usage <open|close|toggle|refresh|next>`.
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## Settings
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Settings live in the widget's entry in `~/.config/omarchy/shell.json`. The
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top-level keys can be set with
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`omarchy bar plugin set omarchy.model-usage <key> <value>`:
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| Key | Default | What it does |
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| `refreshIntervalSec` | `900` | How often local scans and snapshots refresh |
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| `syncMode` | `"Off"` | `"On"` writes this machine's snapshot and merges the others |
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| `syncDir` | `""` | A folder synced by Syncthing, Dropbox, rsync, … |
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| `syncFileName` | `<hostname>.json` | This machine's snapshot file |
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| `syncDeviceId` | hostname | Stable device name inside the snapshot |
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Numbers need `--json`, or they land in `shell.json` as strings:
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```bash
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omarchy bar plugin set omarchy.model-usage refreshIntervalSec 300 --json
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omarchy bar plugin set omarchy.model-usage syncDir '~/Sync/model-usage'
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```
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Per-provider settings are nested, and `set` writes its key literally rather
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than walking a dotted path — so pass the whole `providers` object as JSON (or
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edit `shell.json` directly):
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```bash
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omarchy bar plugin set omarchy.model-usage providers '{
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"claude": {
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"enabled": true,
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"statsPath": "~/.claude/stats-cache.json",
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"credentialsPath": "~/.claude/.credentials.json",
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"projectsPath": "~/.claude/projects"
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},
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"codex": { "enabled": false }
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}' --json
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```
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`enabled` defaults to `true` for both; set it to `false` to hide a
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subscription that is installed. The paths above are the defaults.
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With `syncMode` on, every `*.json` snapshot in `syncDir` is merged, so today,
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the last 7 days, and the all-time totals cover every machine you code on —
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active days are unioned by date rather than summed. Rate limits stay
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per-account and are never merged.
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One caveat on "all-time": the Codex scanner only reads native session files
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touched in the last 30 days, so Codex totals and its day count cover that
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window. Claude's cover every transcript still on disk.
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