install

Additional install commands

macOS

Homebrewverified · 100%

brew install protolint

local Homebrew formula metadata

Linux

Nixverified · 92%

nix profile install nixpkgs#protolint

nixpkgs package indexes · pkgs/by-name/pr/protolint/package.nix · source: api.github.com

Windows

Scoopverified · 92%

scoop install main/protolint

Scoop official bucket manifest trees · bucket/protolint.json · source: api.github.com

overview

Package summary

Pluggable linter and fixer to enforce Protocol Buffer style and conventions

Project links

Commands and aliases

protoc-gen-protolint
protolint

history

Project history and usage

protolint is a pluggable linter and fixer for Protocol Buffer source files, built around the official style guide and extensible with custom rules.

Project history

Yohei Muta created protolint as a fast Protocol Buffer linter that works without invoking the compiler and maps its default rules closely to the official Protocol Buffers style guide. It later added fixing, custom plugins, protoc-plugin operation, multiple reporters, and ecosystem integrations.

Adoption history

The project expanded beyond a standalone binary through Homebrew, release archives, Docker, npm integration, Python wheels, pre-commit hooks, editor support, GitHub Actions, and CI integrations.

How it is used

Run `protolint lint` against files or directories, add `-fix` for safe automatic corrections, select reporters for CI, or load custom rule plugins. It works without configuration and otherwise searches from the current directory upward for `.protolint.yaml`; explicit config paths are supported.

Why package nerds care

protolint combines linting, safe automated fixes, inline suppression, custom rule plugins, protoc integration, and several machine-readable reporters. This makes it useful both interactively and in polyglot build and CI pipelines.

Timeline

2019: The author published a comparison of Protocol Buffer linters linked from the official project README.
Later releases added broad editor, CI, package-ecosystem, protoc-plugin, and MCP integrations.

Related projects

It follows the official Protocol Buffers style guide, uses go-protoparser, supplies `protoc-gen-protolint`, and can run through pre-commit, Docker, JavaScript, Python, and Go workflows.

Sources

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 post-install hook is recorded in formula metadata.
Homebrew bottle metadata is available for 6 platform targets.
Build metadata lists 1 build dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

local files

Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.

Configuration files

Config paths the tool may read or write during local use.

Unix: ./.protolint.yamlpackage.json (protolint key)pyproject.toml ([tool.protolint])

executables

Installed executables

Command	Kind	Exposure	Note
`protoc-gen-protolint`	cli	global executable
`protolint`	cli	global executable

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 generated2026-09-19

manager version0.57.0

manager updated2026-09-13

local dataok

upstreamcurrent

latest detectedv0.57.0

https://github.com/yoheimuta/protolint

okNo freshness warnings were generated.

install metadata

Package metadata

Package key	brew:protolint
Version	0.57.0
Package manager	Homebrew
Package manager page	https://formulae.brew.sh/formula/protolint
Homepage	https://github.com/yoheimuta/protolint
Repository	https://github.com/yoheimuta/protolint
License	MIT
Source archive	https://github.com/yoheimuta/protolint/archive/refs/tags/v0.57.0.tar.gz
Last updated	2026-09-13T12:25:00Z
Pulse	updated
Build dependencies	go
Bottle	available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-install	not defined
Service	none declared

registry facts

Source database details

Source Database	Homebrew formula API
Tap	homebrew/core
Full Name	protolint
Version Scheme	0
Revision	0
Head Version	HEAD
Bottle Stable Root URL	https://ghcr.io/v2/homebrew/core
Deprecated	no
Disabled	no
Keg Only	no
URL Keys	head stable

source database matches

Other package-manager records

Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.

Nix95%

protolint

nix profile install nixpkgs#protolint

normalized package name match
Matched by: Protolint

nixpkgs package indexes · api.github.com · nixpkgs package indexes: pkgs/by-name/pr/protolint/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

Scoop95%

main/protolint

scoop install main/protolint

normalized package name match
Matched by: Protolint

Scoop official bucket manifest trees · api.github.com · Scoop official bucket manifest trees: bucket/protolint.json from https://api.github.com/repos/ScoopInstaller/Main/git/trees/master?recursive=1

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.

Combined YAML source

View the package source record on GitHub.

combined/protolint.yml

Used sources

Geiger risk classifier
cross-ecosystem install command graph
curated configuration and credential file locations
curated package history
external package-manager database matches
package relationship graph
package version freshness
package-page enrichment
pkg.so package database
pkgdb category and tag curation

Install protolint with Homebrew, Nix, scoop