# Install openspec

Spec-driven development (SDD) for AI coding assistants. Version 1.4.1 via Homebrew; verified 2026-06-04.

## Install

```sh
sudo av install brew:openspec
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install openspec
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install openspec
```

  Evidence: MacPorts ports tree: llm/openspec/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#openspec
```

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

## Package Facts

- **Package key:** brew:openspec
- **Package manager:** Homebrew
- **Package manager URL:** <https://formulae.brew.sh/formula/openspec>
- **Version:** 1.4.1
- **Source summary:** Spec-driven development (SDD) for AI coding assistants
- **Homepage:** <https://openspec.dev/>
- **Repository:** <https://github.com/Fission-AI/OpenSpec>
- **Upstream docs:** <https://openspec.dev/>
- **License:** MIT
- **Source archive:** <https://registry.npmjs.org/@fission-ai/openspec/-/openspec-1.4.1.tgz>
- **Last updated:** 2026-06-04T10:09:15Z
- **Generated:** 2026-06-10T07:18:26+00:00

## Executables

- openspec (cli)
- openspec (alias)

## Dependencies

- node

## Install Behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-06-10
- Package-manager version: 1.4.1
- Package-manager updated: 2026-06-04
- Local data status: ok
- Upstream repository: https://openspec.dev/
- info: Release/tag comparison is only available for GitHub repositories.

## Notes de sécurité

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** openspec
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## Other Package-Manager Records

- Nix - openspec: normalized package name match | nixpkgs package indexes: pkgs/by-name/op/openspec/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- MacPorts - openspec: normalized package name match | MacPorts ports tree: llm/openspec/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1


## Related Links

- [Terminal utility packages](https://www.automicvault.com/fr/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/fr/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [Developer build packages](https://www.automicvault.com/fr/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/fr/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [node](https://www.automicvault.com/fr/pkg/brew/node/) - Runtime dependency declared by Homebrew.
- [openskills](https://www.automicvault.com/fr/pkg/brew/openskills/) - Shares av.db curated category or tags: ai, cli, developer-tools, developer-workflow.
- [ollama](https://www.automicvault.com/fr/pkg/brew/ollama/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [rtk](https://www.automicvault.com/fr/pkg/brew/rtk/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [fabric-ai](https://www.automicvault.com/fr/pkg/brew/fabric-ai/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [aider](https://www.automicvault.com/fr/pkg/brew/aider/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [repomix](https://www.automicvault.com/fr/pkg/brew/repomix/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [specify](https://www.automicvault.com/fr/pkg/brew/specify/) - Shares av.db curated category or tags: cli, developer-tools, developer-workflow, spec-driven-development.
- [kimi-cli](https://www.automicvault.com/fr/pkg/brew/kimi-cli/) - Shares av.db curated category or tags: ai, cli, developer-tools.
- [qwen-code](https://www.automicvault.com/fr/pkg/brew/qwen-code/) - Both packages touch the same language runtime or ecosystem. Shared terms: ai, cli, coding, developer, developer-tools.

## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph