Moon v2 — Workspace Configuration

Reference for .moon/workspace.yml and workspace-level concerns.

workspace.yml Structure

$schema: './cache/schemas/workspace.json'
versionConstraint: '>=2.0.0'

projects:
  - 'apps/*'
  - 'packages/*'

vcs:
  client: 'git'           # not "manager" (v1 name)
  defaultBranch: 'main'

pipeline:                  # not "runner" (v1 name)
  cacheLifetime: '7 days'
  autoCleanCache: true
  logRunningCommand: false

telemetry: false

Key v2 Renames

Project Discovery

# Glob patterns (auto-discover by directory)
projects:
  - 'apps/*'
  - 'packages/*'
  - '.'              # root project

# Explicit mapping
projects:
  web: 'apps/web'
  api: 'apps/api'

Projects need a moon.yml file to be recognized.

Toolchains (.moon/toolchains.yml)

Configures language runtimes. Each toolchain has its own settings.

javascript:
  packageManager: 'bun'

node:
  version: '22.0.0'

bun:
  version: '1.2.0'

Run moon toolchain info <name> to see available settings for any toolchain.

Caching and CI

Cache behavior

• Tasks with cache: true and defined outputs are cached
• pipeline.cacheLifetime controls retention (default: 7 days)
• Remote caching configured via remote block with gRPC or HTTP endpoint

CI commands

moon ci                          # Run affected tasks in CI
moon ci --include-relations      # Include dependent projects
moon run :task --affected        # Run specific task for affected projects
moon run project:task --force    # Bypass cache

Affected detection

moon query changed-files         # List changed files (was "touched-files" in v1)
moon run :test --affected        # Run tests for affected projects only

Use --include-relations to include projects that depend on affected projects. Relations are no longer included by default in v2.

CLI Quick Reference

All flags use kebab-case in v2 (not camelCase).

moon check                       # Validate workspace config
moon project list                # List all projects
moon project <name>              # Show project details
moon run <project>:<task>        # Run a task
moon run :task                   # Run task across all projects
moon task <project>:<task>       # Show task details
moon toolchain info <name>       # Show toolchain settings