macOS App

Plan your 5-hour
Claude windows like meetings.

A native macOS app for planning, triggering, and tracking your 5-hour Claude Code and Codex windows.

Install

Install with Homebrew on macOS 26 (Tahoe) or later.

brew install --cask zaai-com/tap/c5h

The cask is signed and notarized.

Then launch C5h and connect your Claude and Codex CLIs from the Providers tab.

C5h lays your planned 5-hour blocks next to the actual runs, so the day reads at a glance.

06:00

07:00

08:00

09:00

10:00

11:00

Planned

Claude Code · 5h

06:00 to 11:00

Actual

Claude Code · 5h

06:00 to 11:00

Calendar planning

Drop 5-hour windows on a day or week grid for each provider. Drag to move, click to inspect.
Multi-provider, one app

Claude Code and OpenAI Codex side by side. Pick a provider per window, run prompts against either.
Scheduled prompts

Attach a prompt to a window and the helper fires the CLI at the right time, even with the app closed.
Usage tracking

Token and cost snapshots per provider, with a 7-day sparkline on the dashboard.
Local-first

Every plan, run, and log lives in SQLite under ~/Library/Application Support/C5h. No cloud, no sync, no account.
Native macOS

SwiftUI, real menu bar, real notifications, real LaunchAgent. No Electron, no web view.

1
Plan

Drop a 5-hour window on the calendar for Claude or Codex.
2
Schedule

Optionally attach a prompt to run at the start of the window.
3
Run

The helper fires the CLI and captures stdout, stderr, exit code, and tool version.
4
Review

Planned vs actual blocks render side by side. Logs, usage, and run details are one click away.

	C5h	Raw CLI	Cron and scripts
Calendar planning for 5-hour windows	Yes	No	No
Claude Code and Codex in one UI	Yes	No	No
Per-provider token and cost tracking	Yes	Partial	No
Scheduled background runs	Yes	No	Yes
Searchable run log with stdout and stderr	Yes	Partial	Partial
Native macOS UI, no terminal needed	Yes	No	No