game-design SKILL.md skillA
game-design from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/game-design@git:20260729.9b4d66aPins git:20260729.9b4d66a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/game-design/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260729.9b4d66a, committed Jul 29, 2026
- First version recorded
- Jul 4, 2026
- Size
- 14,609 bytes
- Repository stars
- 236
- License
- MIT
Use when designing or repairing what makes a game fun — verbs and mechanics, moment-to-moment/session/meta loops, progression, economy faucets and sinks, difficulty curves, dominant strategies, juice, prototyping and scope. NOT engine code (that is `godot`), NOT story (that is `game-storytelling`), NOT level layout (that is `level-design`).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Design games that are fun on purpose Engine-agnostic game design: mechanics, loops, progression, economy, balance, feel, and the discipline of prototyping and scope. No engine APIs live here — when the design is settled, the implementation belongs to [`godot`](../godot/SKILL.md), [`unity`](../unity/SKILL.md), or [`unreal`](../unreal/SKILL.md). Two premises govern everything below. **Fun is discovered, not designed** — you cannot reason your way to a fun game on paper, you find it by building the smallest playable version and playing it, so every hour spent planning a mechanic you have not prototyped is an hour spent guessing. And **a game is the set of verbs it gives the player plus the loops those verbs live in** — art, story, and levels dress that skeleton; if the skeleton is not fun in greybox, nothing dresses it into fun. Route elsewhere when the ask is not design: | The ask | Route to | Why not here | | --- | --- | --- | | Write the movement/AI/shader/save code | [`godot`](../godot/SKILL.md) / [`unity`](../unity/SKILL.md) / [`unreal`](../unreal/SKILL.md) | This skill decides *what* to build; the engine skill builds it. | …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/game-design@sha256:9ee4a050ada00c80The line at the top of this page pins the label git:20260729.9b4d66a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3q4aveatghr3oooz)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 4, 2026 and Jul 29, 2026, about one every 25 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.9b4d66a latest | 2026-07-29 | 9b4d66a | 14,609 B | A | view · diff |
| git:20260704.b011ac6 | 2026-07-04 | b011ac6 | 16,298 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (14609 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3q4aveatghr3oooz GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/game-design GET https://markdownregistry.com/api/v1/blob/9ee4a050ada00c80fb54337859f05421730b3cc88ead7029b137a3511d0713ba
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from ericrisco/rsc-harness
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