pi-devin

Pi provider for Devin Local models. Auth and catalog come from the local Devin CLI; Pi stays the harness.

Packages

Package details

extension

Install pi-devin from npm and Pi will load the resources declared by the package manifest.

npm repohome report
$ pi install npm:pi-devin
Package
pi-devin
Version
0.2.1
Published
Sep 25, 2026
Downloads
609/mo · 39/wk
Author
kashyab
License
MIT
Types
extension
Size
59.6 KB
Dependencies
0 dependencies · 2 peers
Pi manifest JSON
{
  "extensions": [
    "./extensions/index.ts"
  ]
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-devin

A Pi package that uses Devin Local models inside Pi.

Pi stays the harness. The Devin CLI owns login and the live model catalog (devin auth, devin models list). This is not an ACP integration and does not use Zed.

Why this exists

pi-devin-auth treated Devin as Cascade cloud chat. Models like Sol High, Opus 5, and Fable 5 then failed with:

This model is only in Devin Local.

Those models are available through the local Devin CLI. This package uses that CLI for auth + catalog, then streams completions into Pi so Pi's tools, sessions, and UI stay in charge.

Requirements

  • Pi Coding Agent 0.86+
  • A signed-in Devin CLI (devin auth status)
  • Node 22.19+ (required by Pi 0.86)

The CLI binary is resolved in this order:

  1. $DEVIN_CLI
  2. ~/.local/bin/devin, Homebrew, /usr/local/bin/devin
  3. Devin.app's bundled devin binary
  4. which devin

On Windows, discovery checks the CLI installer and Devin Desktop locations, then uses where.exe to search PATH. Native executables and .cmd/.bat wrappers are supported, including paths with spaces. DEVIN_CLI takes precedence on every platform.

Install

From git:

pi install git:github.com/kashyab12/pi-devin

From npm:

pi install npm:pi-devin

Version 0.2.0 requires Pi 0.86+ and Node 22.19+. It restores system instructions and tools on the current Pi transcript format and sends system instructions through Devin's dedicated prompt field. Version 0.1.2 predates Pi 0.86 support.

pi-devin-local is a separate npm package maintained in the mizorewww/pi-devin fork. Changes merged here do not update that package. Install only one: both packages register the devin provider, so their registrations can overwrite each other.

Local checkout:

pi install /Users/kashyab/pi-devin

Restart Pi or run /reload.

Usage

/login devin
/model devin/claude-opus-5-high
/model devin/claude-5-fable-high
/model devin/gpt-5-6-sol-high

/login devin runs devin auth login if ~/.local/share/devin/credentials.toml is missing. If you already signed in through the Devin CLI or Devin Desktop, that file is reused.

Commands:

  • /devin-status — CLI path, version, auth
  • /devin-refresh — reload devin models list --format json

The model catalog is cached for six hours in $XDG_CACHE_HOME/pi-devin/models.json (or ~/.cache/pi-devin/models.json). A fresh cache avoids the CLI call at startup; an older cache remains available while it refreshes in the background. Set PI_OFFLINE=1 to skip automatic catalog refreshes. /devin-refresh still requests a refresh explicitly.

What this is / is not

This package Not this package
Pi is the agent Devin taking over the session
Devin CLI for auth + catalog Fake Windsurf OAuth paste flow
Live CLI families (Opus 5, Fable 5, Sol, …) Hardcoded 11-model cloud allowlist
Completions streamed into Pi tools An editor host for Devin

Publish

This is a standard Pi package (keywords: ["pi-package"] + pi.extensions). After you push to npm with that keyword, it can show up on pi.dev/packages.

License

MIT. Unofficial. Not affiliated with Cognition.