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Install oslo with Homebrew

CLI tool for the OpenSLO spec. Version 0.13.0 via Homebrew; verified 2026-07-27.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified · 100%
brew install oslo

local Homebrew formula metadata

overview

Package summary

CLI tool for the OpenSLO spec

Commands and aliases

  • oslo

history

Project history and usage

oslo is the validation and formatting CLI for OpenSLO, an Apache-2.0 specification for declaring service-level objectives as YAML or JSON. It exists to make SLO definitions fit into Git and CI workflows rather than remaining vendor-specific dashboard configuration.

Project history

The OpenSLO specification repository was created on April 27, 2021, and the oslo CLI repository followed on April 30, 2021. That close pairing reflects the project's shape: a vendor-agnostic SLO document format plus a command-line tool that checks and normalizes those documents.

OpenSLO's public site describes the specification as a service-level objective language for declarative reliability and performance targets, released under Apache 2.0. The specification states goals of Kubernetes-YAML compatibility, vendor neutrality, and extension points for implementation-specific needs.

Adoption history

The oslo README documents several distribution paths: prebuilt release assets, `go install`, Homebrew through the OpenSLO tap, Docker images from GitHub Container Registry, and source builds. That mix points at CI-oriented usage, where teams can validate SLO manifests during code review or deployment.

How it is used

The core commands are deliberately narrow: `oslo validate` checks OpenSLO YAML or JSON documents, and `oslo fmt` formats them. OpenSLO's homepage frames this as a GitOps workflow: run the CLI in any CI/CD tool so SLO files are well-formed before they are consumed by downstream systems.

Why package nerds care

For package nerds, oslo is a good example of a standards-adjacent CLI: the binary matters less than the schema discipline it enforces. Packaging it gives SRE teams a reproducible validator for reliability metadata in the same way formatters and linters gate application code.

Timeline

  • 2021-04-27: the OpenSLO specification repository is created.
  • 2021-04-30: the oslo CLI repository is created.
  • 2025-06-29: oslo v0.13.0 is published on GitHub Releases.

Related projects

  • The OpenSLO specification is the parent standard. OpenSLO/slogen is a related project that turns OpenSLO configs into dashboards, monitors, SLI data, and Terraform-oriented output.

security posture

Risk level: green

narrow executable package without higher-risk signals.

Risk classifier

green risk · low confidence · appliance

Why

  • narrow executable package without higher-risk signals

Signals

  • metadata:no-higher-risk-signals

Install behavior

  • 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

CommandKindExposureNote
osloexecutableindexed executableDiscovered from the local executable index.

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 generated2026-08-03
manager version0.13.0
manager updated2026-07-27
local dataunknown
upstreamnot available
latest detectednot detected
  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:oslo
Version0.13.0
Package managerHomebrew
Homepagehttps://openslo.com/
Repositoryhttps://github.com/openslo/oslo
Last updated2026-07-27T23:46:53+02:00
Pulseupdated
Bottlenot recorded
Servicenone declared

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

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.

Used sources

  • Geiger risk classifier
  • cross-ecosystem install command graph
  • curated package history
  • pkg.so package database
  • pkgdb category and tag curation