# Asset Spec

Per-asset visual specs plus AI generation prompts from GDDs and character profiles.

- Repository: https://github.com/Donchitos/Claude-Code-Game-Studios (32144 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-10-19
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add Donchitos/Claude-Code-Game-Studios --skill asset-spec -g -a claude-code -y`
Codex: `npx skills add Donchitos/Claude-Code-Game-Studios --skill asset-spec -g -a codex -y`
Cursor: `npx skills add Donchitos/Claude-Code-Game-Studios --skill asset-spec -g -a cursor -y`
Gemini CLI: `npx skills add Donchitos/Claude-Code-Game-Studios --skill asset-spec -g -a gemini-cli -y`

## Description

Per-asset visual specs plus AI generation prompts from GDDs and character profiles. After the art bible.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

!`bash "${CLAUDE_SKILL_DIR}/../../hooks/yaml-helper.sh" resolve_config --keys review_mode,automation`

# Asset Spec



If no argument is provided, check whether `design/assets/entity-inventory.md` exists:
- If it exists: read it, find the first entity or screen with status "Needed" but no spec file yet, and use `AskUserQuestion`:
  - Prompt: "The next unspecced item is **[name]**. Generate specs for it?"
  - Options: `[A] Yes, spec [name]` / `[B] Pick a different item` / `[C] Stop here`
- If no entity inventory: check `design/assets/asset-manifest.md`. If manifest exists, same flow above but reading from manifest.
- If neither exists: **start the Entity & Screen Inventory flow** (Phase 0b below) rather than failing.

---

Every `AskUserQuestion` call follows `.claude/docs/automation-modes.md`
(collaborative asks always · guided major-only · autonomous logs and proceeds;
`automation_always_ask` categories always prompt). **Note**: actually invoking an external image
generator (calling an image API) always prompts regardless of
`modes.automation`, it is an irreversible external action guarded
unconditionally, independent of whether `external_calls` is listed in
`automation_always_ask`. (Today this skill only emits generation-prompt
*text*; the guard applies if live generation is ever wired in.)

## Phase 0b: Entity & Screen Inventory (runs when no arguments and no existing inventory)

This flow produces `design/assets/entity-inventory.md`, the master list of everything
the game needs visually. Run once before asset spec work begins.

The rest: https://github.com/Donchitos/Claude-Code-Game-Studios/blob/HEAD/.claude/skills/asset-spec/SKILL.md