Ollama Model Switcher Extension

Monitor and auto-manage Ollama model instances within the pi coding agent harness.

Description

This extension monitors changes in the selected language model. Its primary purpose is to automatically manage and stop a previously running Ollama model instance when a new model is selected, ensuring that system resources are released efficiently.

Security Note: This extension executes shell commands (ollama stop) in the background. Ensure your environment is appropriately configured to allow these operations.

Prerequisites

• pi coding agent harness must be installed.
• Ollama must be installed and running on your system.
• The ollama CLI must be available in your system PATH.

Installation

From GitHub

pi install git:github.com/andriimartynov/pi-ollama-model-switcher

FROM LOCAL PATH (DEVELOPMENT)

pi install /path/to/pi-ollama-model-switcher

Features

• Model Change Detection: Listens for the model_select event.
• Ollama Management: If the selected model changes from a previous Ollama model, it safely stops the old instance.

How it Works

1. Trigger: A user changes the selected model in the harness.
2. Check: The extension verifies if the previously active model was an Ollama model.
3. Action: If so, it executes ollama stop [previous_model_id] in the background.

This ensures that resources tied to the old instance are released before new operations continue.

Limitations

• Ollama Only: It only manages cleanup for Ollama models; switching to/from non-Ollama models does not trigger cleanup.
• Stop Only: This extension manages stopping existing processes; it does not handle starting new models.

Changelog

v0.0.1

• Initial release.