Slash Command

/gan-design

From ecc

Runs a generator/evaluator design loop for frontend or visual work from a user brief with bounded iterations and weighted scoring until passing threshold.

Css

Html

frontend

design

npx claudepluginhub jevonthompsonx/todo.tsx

Prompt Preview

Parse the following from $ARGUMENTS:
1. `brief` — the user's description of the design to create
2. `--max-iterations N` — (optional, default 10) maximum design-evaluate cycles
3. `--pass-threshold N` — (optional, default 7.5) weighted score to pass (higher default for design)

## GAN-Style Design Harness

A two-agent loop (Generator + Evaluator) focused on frontend design quality. No planner — the brief IS the spec.

This is the same mode Anthropic used for their frontend design experiments, where they saw creative breakthroughs like the 3D Dutch art museum with CSS perspective and doorway...

Command Content

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Last CommitApr 11, 2026

Used By22 plugins

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Parse the following from $ARGUMENTS: 1. `brief` — the user's description of the design to create 2. `--max-iterations N` — (optional, default 10) maximum design-evaluate cycles 3. `--pass-threshold N` — (optional, default 7.5) weighted score to pass (higher default for design) ## GAN-Style Design Harness A two-agent loop (Generator + Evaluator) focused on frontend design quality. No planner — the brief IS the spec. This is the same mode Anthropic used for their frontend design experiments, where they saw creative breakthroughs like the 3D Dutch art museum with CSS perspective and doorway...

Parse the following from $ARGUMENTS:

brief — the user's description of the design to create
--max-iterations N — (optional, default 10) maximum design-evaluate cycles
--pass-threshold N — (optional, default 7.5) weighted score to pass (higher default for design)

GAN-Style Design Harness

A two-agent loop (Generator + Evaluator) focused on frontend design quality. No planner — the brief IS the spec.

This is the same mode Anthropic used for their frontend design experiments, where they saw creative breakthroughs like the 3D Dutch art museum with CSS perspective and doorway navigation.

Setup

Create gan-harness/ directory
Write the brief directly as gan-harness/spec.md
Write a design-focused gan-harness/eval-rubric.md with extra weight on Design Quality and Originality

Design-Specific Eval Rubric

### Design Quality (weight: 0.35)
### Originality (weight: 0.30)
### Craft (weight: 0.25)
### Functionality (weight: 0.10)

Note: Originality weight is higher (0.30 vs 0.20) to push for creative breakthroughs. Functionality weight is lower since design mode focuses on visual quality.

Loop

Same as /project:gan-build Phase 2, but:

Skip the planner
Use the design-focused rubric
Generator prompt emphasizes visual quality over feature completeness
Evaluator prompt emphasizes "would this win a design award?" over "do all features work?"

Key Difference from gan-build

The Generator is told: "Your PRIMARY goal is visual excellence. A stunning half-finished app beats a functional ugly one. Push for creative leaps — unusual layouts, custom animations, distinctive color work."