Step 3 rewritten to concept-first + parallel Agent architecture:
- 3a: generate text concepts (free, instant)
- 3b: AskUserQuestion to confirm/modify before spending API credits
- 3c: launch N Agent subagents in parallel (~60s total regardless of count)
- 3d: show all results, dynamic image list for comparison board
Adds Agent to allowed-tools. Softens plan-design-review sequential
warning to note design-shotgun uses parallel at Tier 2+.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Three production UX bugs fixed:
1. Dead air — now shows timing estimate before generation starts
2. Silent variant drop — replaced $D variants batch with individual $D generate
calls, each verified for existence and non-zero size with retry
3. No progressive reveal — each variant shown inline via Read tool immediately
after generation (~60s increments instead of all at ~180s)
Also: /tmp/ then cp as default output pattern (sandbox workaround),
screenshot taken once for evolve path (not per-variant).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
New skill for visual brainstorming: generate AI design variants, open a
comparison board in the user's browser, collect structured feedback, and
iterate. Features: session detection (revisit prior explorations), 5-dimension
context gathering (who, job to be done, what exists, user flow, edge cases),
taste memory (prior approved designs bias new generations), inline variant
preview, configurable variant count, screenshot-to-variants via $D evolve.
Uses {{DESIGN_SHOTGUN_LOOP}} resolver for the feedback loop. Saves all
artifacts to ~/.gstack/projects/$SLUG/designs/.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Garry Tan