Workflow Start

This skill is the workflow router for the simplified project. Because milestones can be in progress at different stages at the same time, it outputs a status panel (not a single command) and recommends the earliest actionable step.

Read only gat/ paths. Do not read or consider legacy design/ or production/ paths.

Phase 1: Inspect State

Check for these files (all under gat/):

• gat/overview/game.md
• gat/overview/systems-index.md
• gat/overview/art-direction.md
• gat/narrative/*.md
• gat/milestone/milestone.md
• each gat/milestone/m{N}-<name>/m{N}-brief.md
• each system's docs under gat/milestone/m{N}-<name>/<system>/

Phase 2: Derive Per-Milestone Stage

For each milestone that has an m{N}-brief.md, derive its stage from filesystem state:

• planned — brief exists, all systems Pending (no GDDs on disk)
• designing — at least one system designed but not all
• designed — every in-scope system's GDD (and art/data where required) is on disk

If the brief's status field disagrees with filesystem state, derive the stage from filesystem state.

Phase 3: Status Panel

Report a short factual summary:

GAT Status:

Overview:
  gat/overview/game.md          [present | missing]
  gat/overview/systems-index.md [present | missing]
  gat/overview/art-direction.md [present | missing]

Narrative:
  gat/narrative/*.md            [N docs | missing]

Milestones (from gat/milestone/milestone.md):
  M1 <name>   [planned | designing | designed]  (K/N systems designed)
  M2 <name>   [planned | designing | designed]  (K/N systems designed)
  ...

Phase 4: Route

Use earliest-first priority to pick the primary recommendation, and list other valid actions:

1. If gat/overview/game.md, gat/overview/systems-index.md, or gat/overview/art-direction.md is missing: recommend /gat-brainstorm (with optional hint). This is the earliest step.
2. Else if the game needs narrative (per overview/user goal) and gat/narrative/story.md does not exist: recommend /gat-story.
3. Else if gat/milestone/milestone.md is missing: recommend /gat-milestone.
4. Else if the earliest milestone with unwritten systems exists: recommend /gat-design <that milestone> (continue) or /gat-design <that milestone> <system>.
5. Else if the earliest milestone is fully designed but no later milestone needs design: state that the milestone is ready for engineering handoff (the user runs their downstream engineering workflow on that milestone directory; the brief includes detailed internal iterations for the downstream workflow to handle).
6. Otherwise: state that GAT pre-production is complete for all planned milestones and tell the user to hand milestones one at a time to their downstream engineering workflow.

Always also list other valid actions (e.g., "M1 ready for engineering; M2 designing — run /gat-design m2-<name> to continue M2").

Phase 5: Hand Off

End with one short line telling the user which command to run next (the primary recommendation), plus any alternative actions.