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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 25 Sep 2026
One change · claude-code

Orchestrate subagents at scale with dynamic workflows changedworkflows

Nearest release: v2.1.283, published 5 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 25 Sep 2026 23:53 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 26 Sep 2026 00:07 UTC.

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The whole hunk

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150150To turn it on while you choose a model, move the `/model` picker's effort slider to `ultracode` with the arrow keys. [Adjust effort level](/docs/en/model-config#adjust-effort-level) lists the routes that turn ultracode on.
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152With ultracode on, Claude decides when a task warrants a workflow. A single request can turn into several workflows in a row: one to understand the code, one to make the change, and one to verify it. This applies to every task in the session, so each request uses more tokens and takes longer than at lower effort levels.
152With ultracode on, Claude decides when a task warrants a workflow. A single request can turn into several workflows in a row: one to understand the code, one to make the change, and one to verify it. This applies to every task in the session, so each request uses more tokens and takes longer than at lower effort levels. On a subscription plan those tokens draw on your usage limits, so a session with ultracode on reaches a session or weekly limit sooner than the same work at `high`.
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154Turning ultracode on already opts you in to large runs, so these checks don't apply while it's on:
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156* The [`Large workflow` warning](#cost) doesn't appear on a workflow run
157* The session's [concurrent subagent limit](/docs/en/sub-agents#concurrent-subagent-limit) isn't enforced for the subagents Claude spawns with the Agent tool
158* In auto permission mode, you aren't asked to [approve the first workflow launch](#approve-the-plan-before-it-runs)
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154160`/effort ultracode` lasts for the current session; to have every session start with it, set the [`ultracode`](/docs/en/settings-reference#ultracode) setting. Drop back with `/effort high` when you return to routine work. The `/effort` menu offers it only [when ultracode is available](/docs/en/model-config#when-ultracode-is-available).
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