Who is spec-spine for?

spec-spine is an open-source project built for developers.

Does spec-spine have a free plan?

Yes — spec-spine is open source under the Apache-2.0 license and free to use.

What platforms does spec-spine run on?

spec-spine runs on the command line.

Is spec-spine still active?

The GitHub repository shows 72 commits in the last 90 days.

Who develops spec-spine?

spec-spine is developed by stagecraft-ing.

When did spec-spine launch?

spec-spine first shipped in 2026.

Is spec-spine open source?

Yes — spec-spine is open source under the Apache-2.0 license, developed on GitHub.

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spec-spine

Name: spec-spine
Author: stagecraft-ing

PyPIInfrastructure

spec-spine is an open-source CLI tool that compiles markdown specification corpora into deterministic authority ledgers and enforces that code does not drift from its owning spec. It is designed for developers who need strict code-spec alignment and governance, and ships as a prebuilt binary with no Rust toolchain required.

Open SourceApache-2.0CLI

Visit PyPI

3stars

5features

2026since

Overview

5 features

In the CLI tools & terminal space, spec-spine takes a focused approach. It focuses on ensuring codebases remain aligned with their owning specifications by compiling specs and enforcing deterministic authority. spec-spine is an open-source project aimed at developers. spec-spine is open source under the Apache-2.0 license. It ships for the command line.

stagecraft-ing builds and maintains spec-spine, and it first shipped in 2026. The project is developed in the open on GitHub with 72 commits in the last 90 days. Among its 5 catalogued features are markdown spec compilation, deterministic authority ledger, and code-spec enforcement.

Summary written by a language model from the project’s public pages.

Markdown spec compilation
Deterministic authority ledger
Code-spec enforcement
Prebuilt binary
No Rust toolchain required

Built with & integrations

Runs on

CLI

Trust & compliance

License

Apache-2.0

Verified signals

HTTPSOpen SourceFree tierGitHub · ★ 3Active maintenance

Indexing history

What PulseGate has recorded for this listing

Indexed3 Jul · 20:47 UTC
spec-spine verified via PyPI Fresh Feed
Source: PyPI Fresh Feed · Open

Frequently asked questions about spec-spine

What is spec-spine?: Spec-spine focuses on ensuring codebases remain aligned with their owning specifications by compiling specs and enforcing deterministic authority. It is catalogued under CLI tools & terminal on PulseGate.
Who is spec-spine for?: spec-spine is an open-source project built for developers.
Does spec-spine have a free plan?: Yes — spec-spine is open source under the Apache-2.0 license and free to use.
What platforms does spec-spine run on?: spec-spine runs on the command line.
Is spec-spine still active?: The GitHub repository shows 72 commits in the last 90 days.
Who develops spec-spine?: spec-spine is developed by stagecraft-ing.
When did spec-spine launch?: spec-spine first shipped in 2026.
Is spec-spine open source?: Yes — spec-spine is open source under the Apache-2.0 license, developed on GitHub.

At a glance

Platforms: CLI
Languages: English
Open source: Yes · ★ 3
License: Apache-2.0
First seen: 3 Jul 2026
Built for: developers
Model: Open source
Solves: Ensuring codebases remain aligned with their owning specifications by compiling specs and enforcing deterministic authority.

Registered as

GitHub: stagecraft-ing/spec-spine
PyPI: spec-spine

Developer

stagecraft-ing

Solo developer

GitHub

Open source

View on GitHub

Stars: 3
Forks: 0
Open issues: 0
Last commit: 3 Jul 2026
Commits 90d: 72
Contributors: 1
Authorship: Solo
Default branch: main
Latest release: v0.10.0 · 3 Jul 2026

Index record

Indexed: 3 Jul 2026
Lifecycle: Alive
First seen: Jul 2026
Last seen: 3 Jul 2026

Identity audit (12)

Slug: spec-spine-pypi-org
Lifecycle last checked: 14 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 3 Jul 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model from page content.
Canonical URL: https://pypi.org/project/spec-spine

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