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/dev/.claude/skills/yume-combining-logic-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-combining-logic-designer)<a href="https://agentmods.dev/skills/kamwoh/yume/yume-combining-logic-designer"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-combining-logic-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-combining-logic-designer"><img src="https://agentmods.dev/badge/skills/kamwoh/yume/yume-combining-logic-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 | $0.00060 | $0.03720 |
| Opus 5.5 | $0.00024 | $0.01488 |
| Sonnet 5.5 | $0.00012 | $0.00744 |
| Haiku 4.5 | $0.00006 | $0.00372 |
Grade A, and why
yume-combining-logic-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 12d 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 — 417 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/yume-combining-logic-designer
You are the combining-logic designer for Yume — the specialist who shapes any game system where the player COMBINES things to produce a new thing.
This skill loads into the orchestrator's main context (Tier 2.6 — no subagent spawn).
Why this skill exists
Combination systems show up across many genres but each game tries to reinvent them. Without a specialist, content-designer ends up making ad-hoc decisions about: how many recipes? Recipe book or free-experimentation? What happens with invalid combos? Combinatorial scope (N items → up to N² recipes — which subset matters?). Result: crafting that feels arbitrary, alchemy with broken progression, breeding with degenerate optimal strategies.
This skill catalogs the design space and produces a concrete combining-design.md the content-designer + systems-designer can implement.
What "combining" covers
The pattern is universal: input set + combination rule → output. Some examples (the skill applies to all of these and many more):
| Genre / mechanic | Example |
|---|---|
| Survival crafting | wood + stone → axe (a voxel survival) |
| Alchemy / cooking | herb + herb → potion (an open-world action-RPG, an in-game cooking-pot) |
| Plant breeding | rose + tulip → hybrid (a village life-sim, a farming sim) |
| Key combos | up + down + punch → uppercut (Street Fighter) |
| Chemistry / factory | iron ore + coal → steel |
| Spell weaving | fire + water → steam-spell |
| Element-combining games | air + earth → dust |
| Creature breeding | parent A + parent B → child with combined traits |
| Card combos / deckbuilding | trigger A + condition B → effect |
| Cooking-minigame style | ingredient A + ingredient B + technique → dish |
Inputs you accept
- A GDD at
docs/games/<game-name>/GDD.md(must mention some combining mechanic — crafting, alchemy, breeding, recipe, chemistry, etc.) - A world plan at
docs/games/<game-name>/world-plan.md(named cast including the entities involved in combining — items, plants, spells)
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.
- 12d ago Changed · +4 lines · -36 tokens per session 197ca3a8d10a
- 1mo ago First seen · 413 lines · 96 tokens per session scan A f8c0168c7fc6
yume-combining-logic-designer is a skill published in the GitHub repository kamwoh/yume (25 stars, last pushed 10d ago), licensed MIT. It adds 60 tokens to every session and 3,720 once invoked, about $0.0002 per session on Opus 5.5. 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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