Extend Claude Code changedfeatures-overview
Upstream edited this page at 25 Oct 2026 14:30 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 25 Oct 2026 14:37 UTC.
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259259**Context cost:** Low until used. User-only skills have zero cost until invoked.
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261**In subagents:** Skills work differently in subagents. Instead of on-demand loading, skills listed in the subagent's `skills` field are fully preloaded into its context at launch. Subagents can still discover and invoke unlisted project, user, and plugin skills through the Skill tool.
261**In subagents:** The full content of skills listed in a subagent's `skills` field [loads into its context at launch](https://code.claude.com/docs/en/sub-agents.md#preload-skills-into-subagents), rather than on demand. Subagents can still discover and invoke unlisted project, user, and plugin skills through the Skill tool.
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