Use to validate spectacular environment - checks superpowers plugin, git-spice, git repo, and project structure before running spectacular workflows
Use when you need to create an execution plan from a feature spec - handles worktree context, dispatches subagent for task decomposition, validates quality, analyzes dependencies, groups into phases, and commits the plan
Use when orchestrating parallel phases in plan execution - creates isolated worktrees for concurrent task execution, installs dependencies, spawns parallel subagents, verifies completion, stacks branches linearly, and cleans up (mandatory for ALL parallel phases including N=1)
Use to execute an implementation plan with automatic sequential/parallel orchestration - handles worktree verification, resume detection, phase dispatch, and quality verification
Use when orchestrating sequential phases in plan execution - executes tasks one-by-one in main worktree using git-spice natural stacking (NO manual upstack commands, NO worktree creation, tasks build on each other)
Use when working with stacked branches, managing dependent PRs/CRs, or uncertain about git-spice commands (stack vs upstack vs downstack) - provides command reference, workflow patterns, and common pitfalls for the git-spice CLI tool
Complete spec workflow - generates Run ID, creates isolated worktree, brainstorms requirements, writes lean spec documents that reference constitutions, validates architecture quality, and reports completion
Shared branch creation and verification logic for sequential and parallel task execution - handles git operations, HEAD verification, and MODE-specific behavior