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Sweep 03 Oct 2026 · 20:28Z Build v2.1.289 510 read Stable v2.1.285 Latest v2.1.289 Next v2.1.289 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 4 Oct 2026
One change · claude-code

Extend Claude Code changedfeatures-overview

Nearest release: v2.1.289, published 7 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 4 Oct 2026 03:53 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 4 Oct 2026 04:07 UTC.

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First seen 14 Aug 2026 this site's first read of the page
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228228| **Subagents** | When spawned | Fresh context with specified skills, or the parent conversation for a [fork](/docs/en/sub-agents#fork-the-current-conversation) | Isolated from main session |
229229| **Hooks** | On trigger | Nothing (runs externally) | Zero, unless hook returns additional context |
230230 
231\*By default, skill descriptions load at session start so Claude can decide when to use them. Set `disable-model-invocation: true` in a skill's frontmatter to hide it from Claude entirely until you invoke it manually. For a skill you didn't write, set [`skillOverrides`](/docs/en/skills#override-skill-visibility-from-settings) in settings to do the same without editing its file.
231\*Set [`disable-model-invocation: true`](/docs/en/skills#control-who-invokes-a-skill) in a skill's frontmatter to keep its description out of Claude's context. For a skill you didn't write, set [`skillOverrides`](/docs/en/skills#override-skill-visibility-from-settings) in settings to do the same without editing its file.
232232 
233233### Understand how features load
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256256 
257257 **What loads:** For model-invocable skills, Claude sees names and descriptions in every request. When you invoke a skill with `/<name>` or Claude loads it automatically, the full content loads into your conversation.
258258 
259 **How Claude chooses skills:** Claude matches your task against skill descriptions to decide which are relevant. If descriptions are vague or overlap, Claude may load the wrong skill or miss one that would help. To tell Claude to use a specific skill, invoke it with `/<name>`. Skills with `disable-model-invocation: true` are invisible to Claude until you invoke them.
259 **How Claude chooses skills:** Claude matches your task against skill descriptions to decide which are relevant. If descriptions are vague or overlap, Claude may load the wrong skill or miss one that would help. To tell Claude to use a specific skill, invoke it with `/<name>`.
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261261 **Context cost:** Low until used. User-only skills have zero cost until invoked.
262262 
263263 **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.
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265 <Tip>Use `disable-model-invocation: true` for skills with side effects. This saves context and ensures only you trigger them.</Tip>
265 <Tip>Use `disable-model-invocation: true` for skills with side effects. This saves context and ensures they run only when you name them.</Tip>
266266 </Tab>
267267 
268268 <Tab title="MCP servers">
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