summer: The game engine built for AI

by SummerEngine · MCP Server · ★ 88

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install summer

/plugin install summer --marketplace summerengine/summer
npx -y summer-engine@latest doctor --json

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 67/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

agent-skillsaiai-agentsai-game-developmentai-game-engineclaude-codeclaude-code-pluginscodexcursorgame-development

Quick Facts

Stars88
Forks8
LanguageTypeScript
CategoryMCP Server
LicenseMIT
Quality Score67/100
Open Issues27
Last Updated2026-10-23
Created2026-02-26
Platformsclaude-code, cli, codex, gemini, mcp, node
Est. Tokens~23k

About summer

Summer: MCP server, CLI and skills for Summer Engine Let any AI coding agent build games in Summer Engine. MCP server · game-dev skills · CLI. One npm package: . Website · Docs · CLI setup · MCP setup What this is Summer Engine is a desktop game engine.

Compatible Skills

These tools work well together with summer for enhanced workflows:

  • ai-game-devtools — semantic(0.65)+complementary+rare_topics+shared_platform (66%)
  • FreeUltraCode — semantic(0.45)+complementary+same_lang+similar_pop+shared_platform (66%)
  • UltraGameStudio — semantic(0.45)+complementary+same_lang+similar_pop+shared_platform (66%)

summer alternative? Top 6 similar tools

Looking for a summer alternative? If you're comparing summer with other mcp server tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • weppy-roblox-mcp by hope1026 · ⭐ 67

    Roblox Studio MCP server & plugin for Claude Code, Cursor, Codex, and Gemini. AI-powered scripts, terrain, ass

  • fennara-godot-ai by fennaraOfficial · ⭐ 307

    AI chat and agent tooling for Godot, with both MCP support and in-built native chat window.

  • Gopeak-godot-mcp by HaD0Yun · ⭐ 179

    GoPeak — The most comprehensive MCP server for Godot Engine. 95+ tools: scene management, GDScript LSP, DAP de

  • notion-mcp-server by awkoy · ⭐ 177

    Notion MCP server with token auth: connect Claude Code, Claude Desktop, Cursor, VS Code and Codex to Notion pa

  • Context-Engine by Context-Engine-AI · ⭐ 401

    Context-Engine MCP - Agentic Context Compression Suite

  • mcp-linker by milisp · ⭐ 345

    Manage MCP servers, skills and plugins across Claude Code, Codex, Cursor and more. Built-in marketplace, one-c

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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