# SoL-Pi

> Spend-less extension for Pi users — Scales automated research loops that tune agent harnesses.

- Page: https://tesign.com/en/item/sol-pi/
- JSON: https://tesign.com/en/item/sol-pi/index.json
- Korean Markdown: https://tesign.com/item/sol-pi/index.md
- Generated: 2026-09-17 01:56 UTC

## RANKS

- Rising this week #13 (As of 2026-09-16 21:00 UTC)

## Numbers

- 2,030 stars — checked on GitHub 2026-09-15 19:34 UTC (+2 observed since the check)
- 7-day +439 observed via GH Archive (as of 2026-09-16 21:00 UTC)
- Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours.

## AT A GLANCE

- LICENSE: MIT (permissive) — https://spdx.org/licenses/MIT.html
- USAGE: Use, change and redistribute, commercially too. Keep the notice.
- OPEN SOURCE: YES
- LANGUAGE: TypeScript
- PLATFORM: [unconfirmed]
- CATEGORY: AI · DEV TOOLS
- Tags: research · agents · harness
- How to start: For developers
- SOURCES: GitHub https://github.com/nvlabs/sol-pi
- VIEW API: https://nvlabs.github.io/SoL-Pi

## ACTIVITY

- Last commit: 2026-09-15 19:24 UTC
- Latest release: no releases
- Contributors: 4
- Open issues (incl. PRs): 54
- Made by: an organization
- Checked on GitHub: 2026-09-15 19:34 UTC

## TESIGN TAKE

Four efficiency mechanisms found by auto-research, packaged as a Pi extension; if you use Pi, try it.

## WHY IT MATTERS

Agent setups are still mostly tuned by hand, one prompt and one tool at a time. SoL-Pi addresses running that tuning as an automated research loop and is published under the NVlabs account. It is written in TypeScript under the MIT license and has its own project page. The work is research-shaped, so it reads more like a method to borrow than a product to install.

## BUILD FROM THIS

- An internal experiment loop that compares harness settings automatically
- A review note porting the method into your current setup

## WHO IT'S FOR

- Pi user — cuts tokens lost to repeated turns and re-read logs
- Agent researcher — studies the output of harness-efficiency experiments

## START IN 5 MINUTES

```
# Needs Node.js 22.19+ and npm
$ npm install --global @earendil-works/pi-coding-agent@0.84.2
$ pi install git:github.com/NVlabs/SoL-Pi
# Everything is off by default; enable it in ~/.pi/agent/sol-pi.json
```

## CAVEATS

- An extension for Pi 0.84.2 and not an official Pi distribution
- Everything is opt-in; without a config file nothing is enabled
- The reducer may send logs to a remote model; read SECURITY.md first

## RECEIPT

- FIRST SEEN BY TESIGN: 2026-09-13 07:43 UTC
- AT SOURCE: 2026-09-02 14:48 UTC
- KEPT: 2026-09-13 11:32 UTC
- Published on TESIGN: 2026-09-13 11:32 UTC
- Text last updated: 2026-09-15 07:17 UTC

## How to read this

- This file was produced by the same build, from the same data, as the tesign.com item page. The text is editorial; the numbers are stored observations.
- null in the JSON means not observed — never zero. The Markdown writes [unconfirmed] for it.
- Star total = the value last checked on GitHub (stars_checked_at) + increases observed via GH Archive since. The 24h · 7d · 30d gains are GH Archive hourly events summed to the reference time (as_of). No score of ours.
- A summary, not legal advice.

[Image] https://tesign.com/img/sol-pi-5dc2867ceb.png