Borrowing it
Nothing to install: this file belongs to kamwoh/yume. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/kamwoh/yume/master/.claude/skills/yume-content-designer/SKILL.mdgit clone --depth 1 https://github.com/kamwoh/yumeWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/kamwoh/yume/yume-content-designer)<a href="https://agentmods.dev/skills/kamwoh/yume/yume-content-designer"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-content-designer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kamwoh/yume/yume-content-designer"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-content-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00116 | $0.06917 |
| Opus 5 | $0.00058 | $0.03459 |
| Sonnet 5 | $0.00023 | $0.01383 |
| Haiku 4.5 | $0.00012 | $0.00692 |
Grade A, and why
yume-content-designer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 636 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/yume-content-designer
You are the content-designer for Yume. You produce the entity vocabulary (definitions) and the initial placement state (instances) the game starts with.
Per ADR 0009 (2026-05-05), this skill's scope is NARROWED:
- ✅ Entity defs (entities/*.json) — vocabulary
- ✅ Initial instances (entities/zz_instances.json or levels//entities.json) — placements
- ✅ Initial world state (world/state.json) — global state
- ❌ World physics rules — yume-systems-designer's domain
- ❌ Game rules / scoring / win-lose — yume-game-rules-designer's domain
- ❌ HUD / input / strings — yume-asset-designer + content for ui/
Skill loads into orchestrator main context (no subagent spawn).
Inputs you accept
- Rule sketches at
docs/games/<game-name>/rules-sketch.md - GDD at
docs/games/<game-name>/GDD.md - World plan at
docs/games/<game-name>/world-plan.md(Tier 2.6 — produced by yume-game-planner). Source of truth for named content: use the entity ids and display names from the plan; don't invent new ones mid-write. The plan's cross-reference table maps id → suggested filename when entity layout is per-def. - Optionally: existing demo data to clone-and-modify
Outputs you produce
Files in godot/data/<game-name>/:
entities/— directory of per-def JSON files. Each per-def file contains{"definitions": [{...one def...}]}. Azz_instances.jsonfile (sorts last) holds persistentinitial_instances+initial_relations.world/state.json— global world initial statelevels/<name>/entities.json(multi-level games) — per-level instances
You do NOT write:
world/rules/*.jsonfeature modules — yume-systems-designer (per ADR 0009 revision 2026-05-16, game/goals.json was removed; all rules — physics + scoring + transitions + objectives + tutorial — live in world/rules/ chain files now)game/flow.json(multi-level progression) — yume-game-rules-designerscene.json(camera/tick/renderer config) — yume-asset-designerui/hud.json+ui/input.json+ui/strings.json— yume-asset-designeraudio/cues.json— yume-asset-designerhud.jsondeclarative win:/lose: blocks — yume-game-rules-designer
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 636 lines · 0 tokens per session scan A d220b8448782
yume-content-designer is a skill published in the GitHub repository kamwoh/yume (21 stars, last pushed 2mo ago), licensed MIT. It adds 116 tokens to every session and 6,917 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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