Tack
Reference

Configuration Reference

Full reference for .tack/config.yaml options.

Complete Config

daemon:
  listen: "127.0.0.1:9800"       # HTTP listen address
  external_url: ""                # Public URL for agent callbacks (required for Daytona)
  data_dir: ".tack/data"          # SQLite database and activity logs
  base_branch: "main"             # Branch to merge into

sandbox:
  provider: "local"               # "local" or "daytona"
  worktree_dir: ""                # Override worktree directory (default: $TMPDIR/tack-worktrees)
  post_create:                    # Commands to run after sandbox creation
    - "bun install"
  default_resources:
    cpu: 2
    memory: "4Gi"
    disk: "20Gi"
  auto_stop_interval: 30          # Minutes before idle sandbox auto-stops (Daytona)
  auto_delete_interval: 60        # Minutes before stopped sandbox auto-deletes (Daytona)

agents:
  runtime: "pi"                   # "pi" or "claude-code"
  max_concurrent: 4               # Max parallel agents
  stagger_delay_ms: 1000          # Delay between agent spawns
  pi:
    provider: "anthropic"         # Model provider
    model: "claude-opus-4-6"    # Model name
    thinking_level: "medium"      # "low", "medium", "high"
  timeouts:
    default:
      max_duration_minutes: 30    # Max wall-clock time per agent
      idle_minutes: 10            # Kill agent after N minutes of no output
    builder:
      max_duration_minutes: 45
    reviewer:
      max_duration_minutes: 15
    planner:
      max_duration_minutes: 20

planning:
  max_streams: 8                  # Cap on parallel streams per plan

tools:
  max_per_agent: 15               # Tool cap per agent
  always_include: []              # Tools always available
  always_exclude: []              # Tools never available

quality_gates:                    # Shell commands run after each agent change
  - "bun test"
  - "bunx tsc --noEmit"
  - "bun run lint"

Credentials

Stored in ~/.config/tack/credentials.yaml:

anthropic:
  setup_token: "sk-ant-..."
github:
  pat: "ghp_..."
daytona:
  api_key: "..."

Environment Variables

VariableDescription
ANTHROPIC_API_KEYAnthropic API key (alternative to credentials file)
GITHUB_TOKENGitHub token (alternative to credentials file)
DAYTONA_API_KEYDaytona API key (alternative to credentials file)

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