Original Euangelion schematic; CC BY 4.0. Source facts are attributed; no third-party artwork or trademarks are reproduced. Asset: oct28-exec-skills-portable-package.svg Created: 2026-10-28 Identity: A shared skill folder containing SKILL.md and optional resources branches to three compatible agent runtimes. Runtime labels are schematic examples, not product compatibility certifications. Source basis: https://agentskills.io/specification https://www.anthropic.com/news/donating-agent-skills-to-the-agentic-ai-foundation https://aaif.io/news/agentic-ai-foundation-announces-four-new-projects Limitations: Agent Skills defines a portable folder format now under AAIF governance. Compatible agents can load the same procedural package; scripts, permissions and execution behavior still need checking in each runtime. License: https://creativecommons.org/licenses/by/4.0/