pi-model-pin1.0.1

Keeps the model you pick with /model across /new sessions in the same pi process, but starts at the default model in a new pi process.

devmolchy Published 8 days ago MIT ~530 downloads/mo

Untested on omp

This is a pi package. No one has reported whether it works on omp yet. If you try it, add your result below.

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Readme

pi-model-pin

A pi coding agent extension that keeps the model you pick with /model across /new sessions within the same running pi process, while a new pi process (like a new terminal tab) always starts on the configured default model — until you pick a different one.

terminal A                                   terminal B (new process)
┌─────────────────────────────────┐          ┌─────────────────────────────┐
│ pi                              │          │ pi                          │
│ /model PROVIDER/MODEL           │          │   (starts on configured      │
│ /new      ← still on that model │          │    default model, as usual)  │
│ /new      ← still on that model │          └─────────────────────────────┘
└─────────────────────────────────┘

Requirements

A pi coding agent installation
Node.js ≥ 20 for development

Install

From npm (recommended)

Install the published package with pi install:

pi install npm:pi-model-pin

This installs the package into pi's package directory (personal install) and activates its extension. Updates are applied with pi update --extensions.

From git

Prefer the npm package, but you can also install directly from this repository:

pi install git:github.com/DevMolchy/pi-model-pin

A git source is cloned and kept in sync with the tracked version; updates are applied on the next start or with pi update --extensions.

Local development

Copy or symlink index.ts into pi's auto-discovery folder:

mkdir -p ~/.pi/agent/extensions
ln -s "$(pwd)/index.ts" ~/.pi/agent/extensions/pi-model-pin.ts

To disable (without uninstalling), remove the symlink. Any edit is picked up by /reload.

Wherever the file lives, make sure you edit the copy in this repository and keep the link pointing here.

Usage

Action	Result
`pi` (new terminal)	configured default model
`/model <provider>/<model>`	switch to that model (becomes "pinned")
`/new`	new session keeps the pinned model
`Ctrl+P` cycling	last non-default model also gets pinned
`/model <default model>`	back on the default → pin cleared
`/pin-status`	shows `Pinned: <model>` or `No model pinned`
`/unpin`	drop the pinned model → next `/new` uses the default

The footer shows a Pinned model indicator while a non-default model is pinned, and is blank otherwise.

Development

npm install        # fetch dev dependencies (type checking + test harness)
npm test           # run the tests
npm run typecheck  # type-check index.ts with tsc

CI (npm ci && npm run typecheck && npm test) runs on every push with Node 20, 22 and 24.