macOS
Homebrew Caskverified · 100%
brew install --cask cirruslocal Homebrew cask metadata
cask
Install cirrus with Homebrew Cask
Inspector for iCloud Drive folders. Version 1.17,2026.10 via Homebrew Cask; verified from local package data.
install
Additional install commands
overview
Package summary
Inspector for iCloud Drive folders
Project links
Commands and aliases
No executable aliases were found in the local package database.
history
Project history and usage
Cirrus is a macOS utility for inspecting and managing iCloud Drive files, testing synchronization, and examining iCloud-related unified logs.
Project history
Howard Oakley introduced a test build of Cirrus in March 2018 to extract and present iCloud-related unified-log entries and perform a controlled upload test. Version 1.0 followed in May 2018 with browsing, eviction, status inspection, and detailed reporting.
Development continued as Apple changed iCloud Drive internals and macOS. Later releases restored compatibility after path changes, added broader diagnostic capabilities, became universal applications, and refreshed the interface for newer macOS releases.
Adoption history
Cirrus occupies a specialist role in the macOS utility ecosystem because macOS offers few user-facing tools for diagnosing iCloud Drive synchronization. The author distributes it as freeware alongside related Mac diagnostic utilities.
Successive releases adapted its browser and log tools to changes in macOS and iCloud Drive, including Catalina path changes, Apple Silicon, Sonoma logging, and Tahoe interface conventions.
How it is used
Users can inspect detailed iCloud file and folder state, download or evict local copies, perform a controlled test upload, and review filtered iCloud-related log activity.
The log browser requires an administrator account. Cirrus's test creates a temporary one-megabyte file in local preferences and iCloud Drive and provides a cleanup command afterward.
Why package nerds care
Cirrus exposes iCloud Drive state that is otherwise difficult to inspect, combining file download and eviction controls, a custom browser, a repeatable synchronization test, and filtered unified-log access.
For administrators and advanced Mac users, it provides a graphical complement to Finder and the sparsely documented brctl command.
Timeline
- 2018-03-29: First public test build announced
- 2018-05-19: Cirrus 1.0 released for general use
- 2019-09-11: Version 1.8 restored full browser functionality with Catalina path changes
- 2020-01-21: The developer documented its standardized iCloud upload test
- 2025-06-27: Version 1.16 introduced an overhauled interface for macOS Tahoe
Related projects
- Bailiff provides lightweight menu-bar control for downloading and evicting iCloud files.
- Mints incorporates an iCloud test related to Cirrus's diagnostic workflow.
- brctl is Apple's command-line CloudDocs management utility.
Sources
security posture
No protected-tool coverage found yet
No matching local secret-handling manifest was found for cirrus. Package metadata is still published here so future coverage has a stable package URL.
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
| No executable data was present. | |||
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-11-04
manager version1.17,2026.10
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://eclecticlight.co/cirrus-bailiff/
- infoNo package-manager update timestamp was available.low confidence
- infoRelease/tag comparison is only available for GitHub repositories.https://eclecticlight.co/cirrus-bailiff/none confidence
install metadata
Package metadata
| Package key | cask:cirrus |
|---|---|
| Version | 1.17,2026.10 |
| Package manager | Homebrew Cask |
| Package manager page | https://formulae.brew.sh/cask/cirrus |
| Homepage | https://eclecticlight.co/cirrus-bailiff/ |
| Upstream docs | https://eclecticlight.co/cirrus-bailiff/ |
| Source archive | https://eclecticlight.co/wp-content/uploads/2026/10/cirrus117.zip |
| SHA-256 | ac50ab7223fc3a1f95538c9639cd1ff56a4be0aae17e9a8f5368f74309418ab8 |
| Bottle | not recorded |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew cask API |
|---|---|
| Tap | homebrew/cask |
| Full Token | cirrus |
| Names |
|
| Depends On | |
| Artifacts | |
| Deprecated | no |
| Disabled | no |
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment
- pkgdb category and tag curation