According to Greg Brockman, OpenAI's Codex now supports skills compliant with the agentskills.io standard, enabling reusable bundles of instructions, scripts, and resources for task execution. Source: Greg Brockman on X Dec 19, 2025 https://twitter.com/gdb/status/2002120466203615649; OpenAI Developers on X Dec 19, 2025 https://x.com/OpenAIDevs/status/2002099762536010235 OpenAI Developers specified that users can invoke a skill directly with $.skill-name or allow Codex to auto-select the appropriate skill based on the prompt. Source: OpenAI Developers on X Dec 19, 2025 https://x.com/OpenAIDevs/status/2002099762536010235 The post includes a demo video showing how skills streamline task execution within Codex. Source: OpenAI Developers on X Dec 19, 2025 https://x.com/OpenAIDevs/status/2002099762536010235 For crypto traders, the announcement did not disclose any blockchain integrations, token launches, or pricing changes, implying no direct, immediate crypto-market catalyst from this post alone. Source: Greg Brockman on X Dec 19, 2025 https://twitter.com/gdb/status/2002120466203615649; OpenAI Developers on X Dec 19, 2025 https://x.com/OpenAIDevs/status/2002099762536010235