compile-prompt-material

name	compile-prompt-material
description	Use when compiling prompts for tileable or reusable material textures that survive pixelization and Godot material workflows.
version	1.0.0
author	Project Agents
license	Project-internal
metadata	{"hermes":{"tags":["prompt-compiler","asset-generation","material-tile"],"related_skills":["asset-prompt-core","asset-generation-brief","score-style-fit"]}}

compile-prompt-material

Overview

Compiles a structured asset brief into a backend-specific prompt for material_tile. The brief remains the source of truth; this skill only translates it.

When to Use

• When asset-generation-brief selects backend target material_tile.
• During asset-gacha-session candidate generation.
• When repairing a candidate for this backend.

Compilation Focus

one dominant material, broad read, tileability, low high-frequency noise.

Prompt Assembly Order

1. State asset type and game context.
2. Insert hard/soft anchors from asset-prompt-core.
3. Insert asset role and player-read.
4. Insert style-kit route and tension dials.
5. Insert creative aperture and lineage fields.
6. Insert backend-specific constraints.
7. Insert output request.
8. Insert negative prompt.

Required Output

backend_profile: material_tile
prompt: ""
negative_prompt: ""
metadata_patch:
  compiler_skill: compile-prompt-material
  required_checks: []

Backend-Specific Checks

• t2i_concept: multiple distinct compositions allowed; no vague "make it cool".
• t2i_reconstruction_input: require style, one complete centered object, neutral gray/light gray solid background, no scene/text/logos, and opaque/solid reconstruction-safe materials.
• i2i_iteration: explicitly list PRESERVE and MUTATE fields.
• i2i_reconstruction_input: preserve source strengths while enforcing the reconstruction input contract; block without explicit opaque/solid repair instructions for hostile source features.
• icon_ui: require 32px/64px readability and no fake text.
• vfx_texture: require gameplay phase and occlusion budget.
• material_tile: require one material read and tile/reuse constraints.

Use only the checks relevant to material_tile.

Common Pitfalls

1. Adding new art direction not present in the brief.
2. Omitting negative prompt.
3. Using the same prose for all backends.

Verification Checklist

• Uses backend profile material_tile
• Preserves brief fields
• Includes hard anchors and selected style kit
• Includes backend-specific constraints
• Emits prompt, negative_prompt, and metadata_patch