Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
/plugin marketplace add rondorkerin/gamestacknpx agentmods add plugins/rondorkerin/gamestack/marketplacegit clone --depth 1 https://github.com/rondorkerin/gamestackWrote 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/plugins/rondorkerin/gamestack/marketplace)<a href="https://agentmods.dev/plugins/rondorkerin/gamestack/marketplace"><img src="https://agentmods.dev/badge/plugins/rondorkerin/gamestack/marketplace.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
gamestack marketplace 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 5d 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 — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
"name": "gamestack",
"owner": {
"name": "Arcos Labs",
"email": "[email protected]"
},
"metadata": {
"description": "An agentic framework for building games on any platform. A first-party design/production brain plus curated, engine-specific skill packs (Godot, Unity, Unreal) so one agent can take a game from concept to shipped code regardless of engine.",
"version": "0.11.4"
},
"plugins": [
{
"name": "gamestack",
"source": "./plugins/gamestack",
"description": "First-party foundation (engine-agnostic): the design/discipline brain in four tiers — universal craft (fundamentals, game feel, level design, onboarding, UI/UX, difficulty & balancing, pacing, art direction), technical craft (3D graphics & rendering, shaders & VFX, animation systems, procedural geometry), genre lenses (open-world, RPG, combat, narrative, worldbuilding, permadeath), and technique modules (procgen, AI-authored coherence, systemic/emergent) — plus the headless generate-and-review process and the iteration-loop fidelity procedure (reference→diff→prioritize→generate→verify, human + AI playtester, human checkpoint before scaling a visual change or committing a heavyweight generation), with a concrete worked Godot example in docs/headless-architecture.md (input→verb→seam, test benches, deterministic headless time, a playtest API, CI). Pairs with the engine packs below: design here, implement there.",
"version": "0.11.4",
"category": "game-development",
"keywords": ["gamedev", "game-design", "procedural-generation", "rendering", "shaders", "animation", "open-world", "combat", "systems-design", "headless", "playtesting"]
},
{
"name": "godot",
"source": { "source": "github", "repo": "jame581/GodotPrompter", "ref": "master" },
"description": "Godot 4.x engine skills (third-party, MIT, by jame581 — GodotPrompter): GDScript patterns, systemThe plugins it lists here
This marketplace lists 1 plugin kept in the same repository. Each has its own page, its own measurements and its own install command.
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.
- 5d ago First seen · 51 lines scan A 5632db37e19b
gamestack marketplace is a plugin published in the GitHub repository rondorkerin/gamestack (27 stars, last pushed 2mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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