PulseGatePost-LLM software, agents & workflows market (since 2022)
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Indexed today: 403

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sage-harness

pypi.org·Infrastructure

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 4.0
CLI
S
Visit PyPI↗

Overview

5 features

sage-harness sits in PulseGate's Other AI category. 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.

SeJonJ builds and maintains sage-harness, and the product first shipped in 2026. Across PulseGate's embedding index, sage-harness has few near neighbours, marking it as relatively distinct. Among its 5 catalogued features are governance hooks, spec-SSOT integration, and agent automation.

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

Tags

agent-governancespec-ssotai-coding

AI capabilities

Code

Built with & integrations

Runs on
CLI

Trust & compliance

LicenseCC BY-NC-SA 4.0
Verified signals
✓ HTTPS✓ Open Source✓ GitHub

Recent events

Latest indexed changes and source events

  1. IndexedJul 1, 2:10 PM

    sage-harness discovered by the PulseGate indexer

    Source: PulseGate indexerOpen ↗

Frequently asked questions about sage-harness

What is sage-harness?
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?
PulseGate's automated liveness checks currently classify sage-harness as active.
What tools are similar to sage-harness?
Similar tools tracked by PulseGate include harnessie, spice-harness, and superharness.harnessiespice-harnesssuperharness
Who develops sage-harness?
sage-harness is developed by SeJonJ.
How long has sage-harness been around?
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
Jul 1, 2026
Activity
🟢 Active
Status
🟢 Active
Built for
AI developers
Model
Open source
Solves
Provides governance and closed-loop specification workflows for AI coding agents like Claude Code and Codex.

Developer

SeJonJ
↗ GitHub

Open source

View on GitHub →

PulseGate index

Confidence
Low · 64
Indexed
Jul 1, 2026
Lifecycle
Alive
Activity
Active
First seen
Jul 2026
Last seen
2w ago
Freshness
Unknown
Identity audit (9)
Entity ID
cmr25mmw2006mdhovikttdvub
Slug
sage-harness-pypi-org
Verification state
Indexed for public listing
Claim / listing state
Unclaimed · listed: yes
Index status
Included in index
Latest evidence snapshot
Jul 1, 2026
Timeline basis
Indexed-at chronology (no inferred launch/funding milestones).
Last updated
Jul 11, 2026
Canonical URL
https://pypi.org/project/sage-harness

Similar apps

Other apps tracked under the same category.

  • harnessie
    pypi.org
  • spice-harness
    pypi.org
  • superharness
    github.com
  • OpenHarness
    open-harness.dev
  • hiclaw-harness-worker
    pypi.org
  • harness-maker
    github.com