Pre-release

This release is a pre-release and may not be stable for production use.

Delta CLI

Delta CLI is a command line interface for the Delta service.

This repository contains the Delta command router, version output, and browser-based CLI authentication.

Features

Built-in help via delta --help and per-command --help
Version output via delta version and delta --version
OAuth login with Authorization Code + PKCE
One-shot 127.0.0.1:8400 callback server
Session storage in the OS keychain
Automatic bearer authentication for service API commands

Requirements

Python 3.13+
uv

Installation

From this directory, install the CLI in editable mode:

uv tool install -e .

You can also run the CLI directly during development:

uv run --with-editable . delta --help
uv run --with-editable . delta version

Authentication Setup

The CLI uses a public OAuth application. Do not use secret keys for interactive CLI user login.

The local session is stored in the OS keychain. If keychain access is unavailable, auth commands fail instead of writing token files.

Create an OAuth application in the same auth project as ../console:

Redirect URI: http://127.0.0.1:8400/callback
Public client: enabled
PKCE required: enabled
Scopes: profile email offline_access user:org:read

The production issuer, public OAuth client ID, and callback port are built in. Sign in without configuration:

delta login

For another deployment, override the public auth configuration explicitly:

export DELTA_AUTH_ISSUER_URL="https://your-auth-issuer.example.com"
export DELTA_AUTH_CLIENT_ID="your_oauth_client_id"

For local development in this monorepo, the CLI can also derive the issuer from DELTA_AUTH_PUBLISHABLE_KEY.

Command Overview

`delta version`

Shows the installed Delta CLI version.

`delta auth login`

Signs in to Delta through your browser.

delta login

The CLI uses the registered callback port 8400. Pass --callback-port 0 for a random loopback port when another provider supports RFC 8252 loopback redirects.

Use --no-browser to print the sign-in URL instead of opening it:

delta auth login --no-browser

`delta auth status`

Shows whether you are signed in.

`delta auth whoami`

Shows the signed-in account.

`delta auth logout`

Signs out of Delta.

`delta --help`

Shows available commands and global options.

Portable Avalanche workspaces

Capture one or more local directories as typed ava.Workspace run inputs:

delta runs create demo-flow \
  --workspace source=./input-tree \
  --workspace config=./config-tree

Each field name must be unique across --workspace and JSON inputs. Delta captures the directory with Avalanche's workspace manifest codec and uploads the manifest through the run-scoped artifact path; workflow code receives ava.Workspace when its declared input field uses that annotation. Manifests are limited to 48 MiB; the CLI rejects oversized trees from directory metadata before reading their file contents.

Materialize terminal workspace trees into a new local directory:

delta runs output run_01KCVST2FP4QC5NKZNN5NS0Z2W --output-dir ./downloaded

The destination must not already exist. Workspace values are written as workspace-0001, workspace-0002, and so on in deterministic result order. Mixed ava.File references remain in the result envelope. Without --output-dir, runs output continues to print that standard Avalanche result document unchanged.

Service API commands automatically load and refresh the signed-in session from the OS keychain. --token and DELTA_TOKEN remain explicit automation overrides; the user TOML configuration rejects plaintext tokens.

The API enforces the selected Clerk organization and its role permissions. The signed-in user must belong to the requested organization, and that role must include the Delta action used by the service command.

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