Skill activation engine that ensures relevant marketplace skills are invoked for every task. TRIGGER WHEN: ALWAYS at conversation start and before every task. DO NOT TRIGGER WHEN: dispatched as a subagent.
EnglishBuild apps with the Claude Agent SDK (formerly Claude Code SDK). Covers programmatic agent loops, tool integration, subagent orchestration, prompt caching, and migration between Claude model versions. TRIGGER WHEN: code references claude-agent-sdk, user says "agent sdk", "build an agent", "programmatic claude", "claude code sdk", "sidecar", "run claude programmatically". DO NOT TRIGGER WHEN: user is using the Claude API client SDK (anthropic/@anthropic-ai/sdk) for direct chat completions, or doing general programming unrelated to agent orchestration.
EnglishComprehensive libGDX cross-platform game development knowledge base covering project generation via gdx-liftoff, the rendering pipeline, Scene2D and Ashley ECS architecture, Box2D physics, AssetManager lifecycle, Screen management, Tiled map integration, and multi-platform deployment to Desktop (LWJGL3), Android, iOS (RoboVM), and HTML5 (GWT/TeaVM). Includes libGDX 1.14.0 breaking changes and Kotlin compatibility caveats. TRIGGER WHEN: building, implementing, writing, coding, creating, optimizing, or debugging libGDX games; scaffolding or starting new libGDX projects; migrating libGDX versions; choosing libGDX architecture patterns. DO NOT TRIGGER WHEN: the task is general Java/Kotlin work unrelated to libGDX, or the engine is not libGDX (jMonkey, KorGE, Godot, Unity).
EnglishPydantic v2 patterns for production Python: validators (@fieldvalidator, @modelvalidator), computed fields, strict types, discriminated unions, settings management, modelvalidate / modeldump, condecimal and Annotated[Decimal, ...] for money, performance tips, and a v1 to v2 migration checklist. Also covers FastAPI integration (responsemodel serialization, request validation, error envelope customization). TRIGGER WHEN: writing or refactoring Pydantic models in Python 3.10+; migrating a codebase from Pydantic v1 to v2; choosing between Annotated[Decimal, ...] vs condecimal; hitting v2 performance or serialization surprises; designing FastAPI request/response schemas or error envelopes with Pydantic. DO NOT TRIGGER WHEN: the task is Python testing (use python-tdd), generic typing unrelated to Pydantic (use mypy / typing docs), or non-Python schema work (use typescript-development for Zod / io-ts).
EnglishDetect and remove unused Python code using vulture and ruff. Covers unused imports, variables, functions, classes, and unreachable code. Framework-aware false positive handling for Django, FastAPI, pytest, click, and more. TRIGGER WHEN: cleaning up Python codebases, enforcing import hygiene, or integrating dead code checks into CI. DO NOT TRIGGER WHEN: the task is outside the specific scope of this component.
EnglishExpert guidance for building, configuring, and integrating xterm.js terminal emulators in web and Electron applications. Use this skill whenever the user mentions xterm, xterm.js, @xterm/xterm, terminal emulator in the browser, web terminal, WebSSH, in-browser shell, or asks about addons like FitAddon, WebglAddon, SearchAddon, AttachAddon, or integration with node-pty. Also trigger for questions about ANSI/VT sequences, terminal theming, PTY over WebSocket, custom key handlers, parser hooks, or embedding a terminal in React/Vue/Angular/Electron apps. TRIGGER WHEN: the user mentions xterm, xterm.js, @xterm/xterm, terminal emulator in the browser, web terminal, WebSSH, in-browser shell, or asks about addons like FitAddon, WebglAddon, SearchAddon, AttachAddon, or integration with node-pty. DO NOT TRIGGER WHEN: the user wants a native OS terminal (not browser-based) or a non-xterm terminal library (e.g. VT100 emulator in Python).
English
AGENT SKILLS ATLASIncludes Acp Loader, Agent SDK Builder, Libgdx Development, and other workflows.
Claude Code
Codex
Cursor
GitHub Copilot
Gemini CLISupported by the Atlas install prompt. Skill-specific requirements vary.
Pack stats
What’s included
Acp Loader
Skill activation engine that ensures relevant marketplace skills are invoked for every task. TRIGGER WHEN: ALWAYS at conversation start and before every task. DO NOT TRIGGER WHEN: dispatched as a subagent.
Agent SDK Builder
Build apps with the Claude Agent SDK (formerly Claude Code SDK). Covers programmatic agent loops, tool integration, subagent orchestration, prompt caching, and migration between Claude model versions. TRIGGER WHEN: code references claude-agent-sdk, user says "agent sdk", "build an agent", "programmatic claude", "claude code sdk", "sidecar", "run claude programmatically". DO NOT TRIGGER WHEN: user is using the Claude API client SDK (anthropic/@anthropic-ai/sdk) for direct chat completions, or doing general programming unrelated to agent orchestration.
Libgdx Development
Comprehensive libGDX cross-platform game development knowledge base covering project generation via gdx-liftoff, the rendering pipeline, Scene2D and Ashley ECS architecture, Box2D physics, AssetManager lifecycle, Screen management, Tiled map integration, and multi-platform deployment to Desktop (LWJGL3), Android, iOS (RoboVM), and HTML5 (GWT/TeaVM). Includes libGDX 1.14.0 breaking changes and Kotlin compatibility caveats. TRIGGER WHEN: building, implementing, writing, coding, creating, optimizing, or debugging libGDX games; scaffolding or starting new libGDX projects; migrating libGDX versions; choosing libGDX architecture patterns. DO NOT TRIGGER WHEN: the task is general Java/Kotlin work unrelated to libGDX, or the engine is not libGDX (jMonkey, KorGE, Godot, Unity).
Pydantic V2
Pydantic v2 patterns for production Python: validators (@fieldvalidator, @modelvalidator), computed fields, strict types, discriminated unions, settings management, modelvalidate / modeldump, condecimal and Annotated[Decimal, ...] for money, performance tips, and a v1 to v2 migration checklist. Also covers FastAPI integration (responsemodel serialization, request validation, error envelope customization). TRIGGER WHEN: writing or refactoring Pydantic models in Python 3.10+; migrating a codebase from Pydantic v1 to v2; choosing between Annotated[Decimal, ...] vs condecimal; hitting v2 performance or serialization surprises; designing FastAPI request/response schemas or error envelopes with Pydantic. DO NOT TRIGGER WHEN: the task is Python testing (use python-tdd), generic typing unrelated to Pydantic (use mypy / typing docs), or non-Python schema work (use typescript-development for Zod / io-ts).
Python Dead Code
Detect and remove unused Python code using vulture and ruff. Covers unused imports, variables, functions, classes, and unreachable code. Framework-aware false positive handling for Django, FastAPI, pytest, click, and more. TRIGGER WHEN: cleaning up Python codebases, enforcing import hygiene, or integrating dead code checks into CI. DO NOT TRIGGER WHEN: the task is outside the specific scope of this component.
Xtermjs Skill
Expert guidance for building, configuring, and integrating xterm.js terminal emulators in web and Electron applications. Use this skill whenever the user mentions xterm, xterm.js, @xterm/xterm, terminal emulator in the browser, web terminal, WebSSH, in-browser shell, or asks about addons like FitAddon, WebglAddon, SearchAddon, AttachAddon, or integration with node-pty. Also trigger for questions about ANSI/VT sequences, terminal theming, PTY over WebSocket, custom key handlers, parser hooks, or embedding a terminal in React/Vue/Angular/Electron apps. TRIGGER WHEN: the user mentions xterm, xterm.js, @xterm/xterm, terminal emulator in the browser, web terminal, WebSSH, in-browser shell, or asks about addons like FitAddon, WebglAddon, SearchAddon, AttachAddon, or integration with node-pty. DO NOT TRIGGER WHEN: the user wants a native OS terminal (not browser-based) or a non-xterm terminal library (e.g. VT100 emulator in Python).
Quick start
- Choose your skills. Select individual skills above, or choose the entire pack.
- Copy the install prompt. Use Copy install prompt above the list.
- Send it to your agent. Paste into your coding agent’s chat. Your agent reviews the source and guides the setup.
Try it with your agent
After installation, start with a request like:
Use the Acp Loader skill to help with my task.
Ask me for the context you need before getting started.Requirements & license
- A coding agent that can access your project files and install skills.
- Your agent checks each skill’s instructions, dependencies, and permissions during setup.
- Reported license for the skills shown: MIT. The author’s terms apply.