Unclear It is not known whether anything still produces claude-ai: skill names.
What
A skill is a named set of instructions Claude can call on, and some skills have more than one name. Claude Code no longer knows about the claude-ai: prefix. Only anthropic-skills remains, and claude-ai: names are no longer translated to or from anthropic-skills:.
At the same time:
Why
Old references to a skill as claude-ai:skill may stop working, while plugin skills become reachable by shorter names.
Names in the bundleclaude-ai:anthropic-skills:
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up anthropic-skills:, on Extend Claude with skills.
| A [skill synced from claude.ai](#how-synced-skills-behave) | `Skill(anthropic-skills:deploy)` | That skill when Claude Desktop delivers it to a session as a plugin |skills see the edit
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not known whether anything still produces `claude-ai:` skill names.
Anthropic's documentation agrees
Anthropic's documentation has since written up anthropic-skills:, on Extend Claude with skills.
Anthropic's release notes agree
Reverted the 2.1.282 reservation of the claude-ai name: skills, commands, workflows and MCP servers' skills and prompts so named load again…