Agentic AI Foundation accepts Anthropic's Agent Skills, backing by 70+ platforms

On October 23, 2026, Anthropic announced it was donating Agent Skills, the open standard it had introduced in December 2025, to the Agentic AI Foundation (AAIF), the Linux Foundation group it co-founded with Block and OpenAI. Anthropic said the standard, a folder format that gives Claude specialized knowledge and workflows on demand, is already integrated by 70+ platforms. The move extends the open-source, vendor-neutral path Anthropic set with its 2025 donation of the Model Context Protocol (MCP) to the same foundation, and keeps Agent Skills open, community-driven, and vendor-neutral.

Subsequent reporting from DEV Community and Juejin dates the handover to October 22: at AGNTCon in San Jose, held alongside MCPCon, the AAIF took in four new hosted projects, one of them Anthropic's Agent Skills. The foundation, which already hosts MCP and AGENTS.md, now counts 10 projects, up from the three it had at its launch in December 2025. The DEV Community article explains that a skill written once can now be loaded by any harness following the spec, not only by Claude, and shares measurements from a 113-line loader the author wrote: across five skill scenarios, progressive disclosure reduced prompt tokens by 56%-81% versus the conventional approach, and with 50 skills the gap widened to roughly 9x. The Juejin piece complements this by walking through what was handed over and running a spec-based audit of 65 local skills. As of the latest reports, the donation is complete and Agent Skills is a hosted AAIF project; broader adoption and governance remain to be seen.