Who should use sage-harness?

sage-harness is an open-source project built for AI developers.

Does sage-harness have a free plan?

Yes — sage-harness is open source under the CC BY-NC-SA 4.0 license and free to use.

What platforms does sage-harness run on?

sage-harness runs on the command line.

Is sage-harness still active?

Unverified. sage-harness has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to sage-harness?

Similar projects tracked by PulseGate include harness-agent-research, harnessie, and warrantor-harness.

Who makes sage-harness?

sage-harness is developed by SeJonJ.

When did sage-harness launch?

sage-harness first shipped in 2026.

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sage-harness

Name: sage-harness
Author: SeJonJ

PyPIInfrastructure

sage-harness is an open-source CLI tool that offers governance and closed-loop specification workflows for AI coding agents such as Claude Code and Codex. It integrates spec-SSOT and automation hooks, targeting AI developers building or managing agent-based coding systems.

Open SourceCC BY-NC-SA 4.0CLI

Visit PyPI

Overview

5 features

In the Other AI space, sage-harness takes a focused approach. It provides governance and closed-loop specification workflows for AI coding agents like Claude Code and Codex. sage-harness is an open-source project aimed at AI developers. The project is open source (CC BY-NC-SA 4.0). sage-harness is available on the command line.

It is developed by SeJonJ, and it first shipped in 2026. Key capabilities include governance hooks, spec-SSOT integration, and agent automation.

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

Governance hooks
Spec-SSOT integration
Agent automation
Closed loop workflows
CLI tool

Built with & integrations

Runs on

CLI

Trust & compliance

License

CC BY-NC-SA 4.0

Verified signals

HTTPSOpen Source GitHub

Indexing history

What PulseGate has recorded for this listing

Indexed1 Jul · 14:10 UTC
sage-harness verified against its public source
Source: PulseGate · Open

Frequently asked questions about sage-harness

What does sage-harness do?: Sage-harness provides governance and closed-loop specification workflows for AI coding agents like Claude Code and Codex. It is catalogued under Other AI on PulseGate.
Who should use sage-harness?: sage-harness is an open-source project built for AI developers.
Does sage-harness have a free plan?: Yes — sage-harness is open source under the CC BY-NC-SA 4.0 license and free to use.
What platforms does sage-harness run on?: sage-harness runs on the command line.
Is sage-harness still active?: Unverified. sage-harness has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to sage-harness?: Similar projects tracked by PulseGate include harness-agent-research, harnessie, and warrantor-harness.harness-agent-research harnessie warrantor-harness
Who makes sage-harness?: sage-harness is developed by SeJonJ.
When did sage-harness launch?: sage-harness first shipped in 2026.

At a glance

Platforms: CLI
Languages: English
Open source: Yes (GitHub)
License: CC BY-NC-SA 4.0
First seen: 1 Jul 2026
Built for: AI developers
Model: Open source
Solves: Provides governance and closed-loop specification workflows for AI coding agents like Claude Code and Codex.

Registered as

GitHub: SeJonJ/SAGE
PyPI: sage-harness

Developer

SeJonJ

GitHub

Open source

View on GitHub

Index record

Indexed: 1 Jul 2026
Lifecycle: Alive
First seen: Jul 2026
Last seen: 1 Jul 2026

Identity audit (12)

Slug: sage-harness-pypi-org
Lifecycle last checked: 8 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 1 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/sage-harness

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